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rev. e information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. no license is granted by implication or otherwise under any patent or patent rights of analog devices. a ad7416/ad7417/AD7418 one technology way, p.o. box 9106, norwood, ma 02062-9106, u.s.a. tel: 781/329-4700 www.analog.com fax: 781/326-8703 ?analog devices, inc., 2002 1 0-bit digital temperature sensor (ad7416) and four single-channel adcs (ad7417/AD7418) functional block diagrams v dd oti gnd sda scl fault queue counter setpoint comparator t oti setpoint register t hyst setpoint register temperature value register a0 a1 a2 configuration register serial bus interface band gap temperature sensor 10-bit analog-digital converter address pointer register ad7416 control logic a > b ref in v dd oti scl sda a2 a1 a0 convst a in1 a in2 a in3 a in4 + temp sensor sampling capacitor v balance clock a b ref 2.5v charge distribution dac i 2 c interface mux overtemp reg nc nc gnd data out nc = no connect ad7417 control logic a > b v dd oti scl sda a in1 + sampling capacitor v balance clock a b i 2 c interface mux overtemp reg gnd data out temp sensor ref in convst ref 2.5v charge distribution dac AD7418 features 10-bit adc with 15 s and 30 s conversion times single and four single-ended analog input channels on-chip temperature sensor: ?5 c to +125 c on-chip track-and-hold overtemperature indicator automatic power-down at the end of a conversion wide operating supply range: 2.7 v to 5.5 v i 2 c compatible serial interface selectable serial bus address allows connection of up to eight ad7416/ad7417s to a single bus ad7416 is a superior replacement for lm75 applications data acquisition with ambient temperature monitoring industrial process control automotive battery-charging applications personal computers general description t he ad7417 and AD7418 are 10-bit, 4-channel and single- channel a/d c onverters with an on-chip temperature sensor that can operate from a single 2.7 v to 5.5 v power supply. t he de vices c ontain a 15 s successive-approximation converter, a 5-channel m ultiplexer, a temperature sensor, a clock oscillator, a track-and-hold, and a reference (2.5 v). the ad7416 is a temperature-monitoring-only device in an 8-lead package. the temperature sensor on the parts can be accessed via multi- plexer channel 0. when channel 0 is selected and a conversion is initiated, the resulting adc code at the end of the conversion gives a measurement of the ambient temperature ( 1 c @ 25 c). on-chip regist ers can be programmed w ith high and low tem- perature limits, and an o pen-drain overtemperature indicator (oti) output is provided, which becomes active when a pro- grammed limit is exceeded. a configuration register allows programming of the sense of the oti output (active high or active low) and its operating mode (co mparator or interrupt). a programmable fault queue counter allows the number of out of limit measurements that must occur before triggering the oti output to be set to prevent s purious triggering of the oti output in noisy environments. ( continued on page 7 ) i 2 c is a registered trademark of philips corporation.
rev. e e2e ad7416/ad7417/AD7418 ad7417/AD7418especifications (v dd = 2.7 v to 5.5 v, gnd = 0 v, ref in = 2.5 v, u nless otherwise noted.) p arameter a version b version 1 unit test conditions/comments dc accuracy any channel resolution 10 10 bits minimum resolution for which no missing codes are guaranteed 10 10 bits relative accuracy 2 1 1l sb max this spec is typical for v dd of 3.6 v to 5.5 v differential nonlinearity 2 1 1l sb max this spec is typical for v dd of 3.6 v to 5.5 v gain error 2 3 3l sb max external reference 10 10 lsb max internal reference gain error match 2 0.6 0.6 lsb max ad7417 only offset error 2 4 4l sb max offset error match 0.7 0.7 lsb max ad7417 only analog inputs input voltage range v ref v ref v max 00v min input leakage current 3 1 1 a max input capacitance 10 10 pf max temperature sensor 1 measurement error ambient temperature 25 c 2 1 c max t min to t max 3 2 c max temperature resolution 1/4 1/4 c/lsb conversion rate track-and-hold acquisition time 4 400 400 ns max source impedance < 10 conversion time temperature sensor 30 30 s max typically 27 s channels 1 to 4 15 15 s max typically 10 s reference input 5, 6 ref in input voltage range 6 2.625 2.625 v max 2.5 v + 5% 2.375 2.375 v min 2.5 v C
rev. e e3e ad7416/ad7417/AD7418 notes 1 b version applies to ad7417 only with temperature range of C C C C C C C
rev. e ad7416/ad7417/AD7418 e4e ad7417 pin function description pin no. mnemonic description 1, 16 nc no connection. do not connect anything to this pin. 2 sda digital i/o. serial bus bidirectional data. push-pull output. 3 scl digital input. serial bus clock. 4 oti this is a logic output. the overtemperature indicator (oti) is set if the result of a conversion on channel 0 (temperature sensor) is greater than an 8-bit word in the overtemperature register ( otr). the signal is reset at the end of a serial read operation. open-drain output. 5 ref in reference input. an external 2.5 v reference can be connected to the ad7417 at this pin. to enable the on-chip reference, the ref in pin should be tied to gnd. if an external reference is connected to the ad7417, the internal reference will shut down. 6g nd ground reference for track-and-hold, comparator and capacitor dac, and digital circuitry 7 C convst sctt convst convst t t so nconton soctsso tovw ns ncnoconnct nc s sc ot n n n n nc convst v n n
rev. e ad7416/ad7417/AD7418 e5e ad7416 pin function description pin no. mnemonic description 1 sda digital i/o. serial bus bidirectional data. push-pull output. 2 scl digital input. serial bus clock. 3 oti this is a logic output. the oti is set if the result of a conversion on channel 0 (temperature sensor) is greater that an 8-bit word in the otr. the signal is reset at the end of a serial read operation. open-drain output. 4g nd ground reference for track-and-hold, comparator and capacitor dac, and digital circuitry 5a 2d igital input. the highest programmable bit of the serial bus address. 6a 1d igital input. the middle programmable bit of the serial bus address. 7a 0d igital input. the lowest programmable bit of the serial bus address. 8v dd positive supply voltage, 2.7 v to 5.5 v AD7418 pin function description pin no. mnemonic description 1 sda digital i/o. serial bus bidirectional data. push-pull output. 2 scl digital input. serial bus clock. 3 oti this is a logic output. the oti is set if the result of a conversion on channel 0 (temperature sensor) is greater that an 8-bit word in the otr. the signal is reset at the end of a serial read operation. open-drain output. 4g nd ground reference for track-and-hold, comparator and capacitor dac, and digital circuitry 5a in analog input channel. the input channel is single-ended with respect to gnd. the input channel can convert voltage signals in the range 0 v to v ref . the analog input channel is selected by writing to the configuration register of the AD7418 and choosing channel 4. (see control byte section.) 6 ref in reference input. an external 2.5 v reference can be connected to the AD7418 at this pin. to enable the on-chip reference, the ref in pin should be tied to gnd. if an external reference is connected to the AD7418, the internal reference will shut down. 7v dd positive supply voltage, 2.7 v to 5.5 v 8 convst sctt convst convst t t so nconton socso tovw ns s sc ot n v nconton socso tovw ns s sc ot n convst v n n
rev. e ad7416/ad7417/AD7418 ? ordering guide temperature temperature package branding package model range error @ 25 c description information options ad7416ar ?5 c to +125 c 2 c 8-lead narrow body (soic) rn-8 ad7416arm ?5 c to +125 c 2 c 8-lead msop c6a rm-8 ad7417ar ?5 c to +125 c 2 c 16-lead narrow body (soic) rn-16 ad7417aru ?5 c to +125 c 2 c 16-lead tssop ru-16 ad7417br ?0 c to +85 c 1 c 16-lead narrow body (soic) rn-16 AD7418ar ?5 c to +125 c 2 c 8-lead narrow body (soic) rn-8 AD7418arm ?5 c to +125 c 2 c 8-lead msop c7a rm-8 absolute maximum ratings 1 (t a = 25 c, unless otherwise noted.) v dd to agnd . . . . . . . . . . . . . . . . . . . . . . . . . ?.3 v to +7 v v dd to dgnd . . . . . . . . . . . . . . . . . . . . . . . . . ?.3 v to +7 v analog input voltage to agnd a in1 to a in4 . . . . . . . . . . . . . . . . . . . ?.3 v to v dd + 0.3 v reference input voltage to agnd 2 . . . ?.3 v to v dd + 0.3 v digital input voltage to dgnd . . . . . . ?.3 v to v dd + 0.3 v digital output voltage to dgnd . . . . . ?.3 v to v dd + 0.3 v operating temperature range a version . . . . . . . . . . . . . . . . . . . . . . . . . ?5 c to +125 c b version . . . . . . . . . . . . . . . . . . . . . . . . . . ?0 c to +85 c storage temperature range . . . . . . . . . . . . ?5 c to +150 c junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150 c tssop, power dissipation . . . . . . . . . . . . . . . . . . . . 450 mw ja thermal impedance . . . . . . . . . . . . . . . . . . . . . 120 c/w lead temperature, soldering . . . . . . . . . . . . . . . . . . 260 c vapor phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 215 c infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220 c 16-lead soic package, power dissipation . . . . . . . . 450 mw ja thermal impedance . . . . . . . . . . . . . . . . . . . . . 100 c/w lead temperature, soldering vapor phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 215 c infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220 c 8-lead soic package, power dissipation . . . . . . . . . 450 mw ja thermal impedance . . . . . . . . . . . . . . . . . . . . . 157 c/w lead temperature, soldering vapor phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 215 c infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220 c msop package, power dissipation . . . . . . . . . . . . . . 450 mw ja thermal impedance . . . . . . . . . . . . . . . . . . . . . 206 c/w lead temperature, soldering vapor phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 215 c infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220 c notes 1 stresses above those listed under absolute maximum ratings may cause perma nent damage to the device. this is a stress rating only; functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. 2 if the reference input voltage is likely to exceed v dd by more than 0.3 v (e.g., during power-up) and the reference is capable of supplying 30 ma or more, it is recommended to use a clamping diode between the ref in pin and v dd pin. the diagram below shows how the diode should be connected. caution esd (electrostatic discharge) sensitive device. electrostatic charges as high as 4000 v readily accumulate on the human body and test equipment and can discharge without detection. although the ad7416/ad7417/AD7418 features proprietary esd protection circuitry, perma- nent damage may occur on devices subjected to high energy electrostatic discharges. therefore, p roper esd precautions are recommended to avoid performance degradation or loss of functionality. ref in v dd ad7417 bat81 warning! esd sensitive device
rev. e ad7416/ad7417/AD7418 e7e (continued from page 1) an i 2 c compatible serial interface allows the ad7416/ad7417/ AD7418 registers to be written to and read back. the three lsbs of the ad7416/ad7417 C C C convst t t t convst c t t t c c tt t n v n
rev. e ad7416/ad7417/AD7418 e8e typical connection diagram figure 2 shows a typical connection diagram for the ad7417. using the a0, a1, and a2 pins allows the user to select from up to eight ad7417s on the same serial bus, if desired. an external 2.5 v reference can be connected at the ref in pin. if an external reference is used, a 10 f capacitor should be connected between ref in and gnd. sda and scl form the 2-wire i 2 c compatible interface. for applications where power consum ption is of concern, the automatic power-down at the end of a conversion should be used to improve power performance. see operating modes section of this data sheet. v dd a in1 gnd ref in supply 2.7v to 5.5v 0.1 f 10 f 10 f for e xternal r eference optional external reference ad780/ ref-192 0v to 2.5v input convst sda a in2 a in3 a in4 oti scl 2-wire serial interface ad7417 a0 a1 a2 c/ p figure 2. typical connection diagram analog inputs figure 3 shows an equivalent circuit of the analog input struc- ture of the ad7417 and AD7418. the two diodes, d1 and d2, prov ide esd protection for the analog inputs. c are must be taken to ensure that the analog input signal never exceeds the supply rails by more than 200 mv. this will cause these diodes to become forward-biased and start conducting current into the su bstrate. the maximum current these diodes can conduct without causing irreversible damage to the part is 20 ma. the capacitor c2 in figure 3 is typically about 4 pf and can prima- rily be attributed to pin capacitance. the resistor r1 is a lumped component made up of the on resistance of a multi- plexer and a switch. this resistor is typically about 1 k . the capacitor c1 is the adc sampling capacitor and has a capaci- tance of 3 pf. a in d1 c1 3pf v dd d2 c2 4pf v balance convert phase e switch open track phase e switch closed r1 1k figure 3. equivalent analog input circuit on-chip reference the ad7416/ad7417/AD7418 has an on-chip 1.2 v band gap reference that is gained up by a switched capacitor amplifier to give an output of 2.5 v. the amplifier is only powered up at the start of the conversion phase and is powered down at the end of the conversion. the on-chip reference is selected by connecting the ref in pin to analog ground. this causes sw1 (see figure 4) to open and the reference amplifier to power up during a conversion. therefore, the on-chip reference is not available externally. an external 2.5 v reference can be connected to the ref in pin. this has the effect of shutting down the on-chip reference circuitry. 1.2v ref in sw1 2.5v external reference detect buffer 1.2v 26k 24k + + figure 4. on-chip reference temperature measurement a common method of measuring temperature is to exploit the negative temperature coefficient of a diode, or the base-emitter voltage of a transistor, operated at a constant current. unfortu- nately, this technique requires calibration to null out the effect of the absolute value of v be , which varies from device to device. the technique used in the ad7416/ad7417/AD7418 is to measure the current change in v be when the device is operated at two different currents. this is given by: vkt/qn (n) be = 1 where: k is boltzmann
rev. e ad7416/ad7417/AD7418 e9e table i. address pointer register p7 * p6 * p5 * p4 * p3 * p2 p1 p0 00000 r egister select * p3 to p7 must be set to 0. table ii. register addresses p2 p1 p0 registers 000tem perature value (read-only) 001c onfig register (read/write) 010t hyst (read/write) 011t oti 100 adc (ad7417/AD7418 only) 101c onfig2 (ad7417/AD7418 only) temperature value register (address 00h) the t emperature value register is a 16-bit, read-only register whose 10 msbs store the temperature reading from the adc in 10-bit two C C C C C C C C C C
rev. e ad7416/ad7417/AD7418 e10e table v. configuration register d7 d6 d5 d4 d3 d2 d1 d0 channel fault oti cmp/ shut- selection queue polarity int down the ad7416 contains a temperature-only channel, the ad7417 has four analog input channels and a temperature channel, and the AD7418 has two channels, a temperature channel, and an analog input channel. the temperature channel address for all parts is the same, ch0. the address for the an alog input channel on the AD7418 is ch4. table vi outlines the channel selection on the parts, while table vii shows the fault queue settings. d1 and d2 are explained in the oti output section. table vi. channel selection d7 d6 d5 channel selection 000 temperature sensor (all parts) 001a in1 (ad7417 only) 010a in2 (ad7417 only) 011a in3 (ad7417 only) 100a in4 (ad7417) and a in (AD7418) table vii. fault queue settings d4 d3 number of faults 00 1 (power-up default) 012 104 116 t hyst setpoint register (address 02h) the t hyst setpoint register is a 16-bit, read/write register whose nine msbs store the t hyst setpoint in two convst convst convst t w c t con c t ssntc c ct ssss c ts s v n ts s t t ssc t
rev. e ad7416/ad7417/AD7418 e11e start condition and shift in the next eight bits, consisting of a 7-bit address (msb first) plus an r/ w t w w t w w t nt wtntot w t n wc t ot t st tc s t ot t st t ot t st w t wt ot t st t ot t st t t w sc s c sto st stt st sssst ssontstt c wsso w sc s c stt st sssst ssontstt c c sto st tt sccontn scontn wss
rev. e ad7416/ad7417/AD7418 e12e reading data from the ad7416/ad7417/AD7418 reading data from the ad7416/ad7417/AD7418 is a one or two byte operation. reading back the contents of the configura- tion register is a single byte read operation, as shown in figure 11, the register address previously having been set by a single-byte write operation to the address pointer register. reading data from the temperature value, t oti or t hyst regis ters, is a two-byte operation, as shown in figure 12. it is also possible to read the most significant bit of a 9-/10-bit register in this man ner. oti output the oti output has two operating modes, which are selected by bit d1 of the configuration register. in the com parator m ode, (d1 = 0), the oti output becomes active when the temperature exceeds t oti and remains active until the temperature falls below t hyst . this mode allows the ad7416/ad7417/AD7418 to be used as a thermostat, for example, to control the operation of a cooling fan. r/ w 1 scl sda 0 0 1 a2 a1 a0 p7 p6 p5 p4 p3 p2 p1 p0 ack. by ad7416 start by master frame 1 serial bus address byte frame 2 address pointer register byte 191 ack. by ad7416 9 d15 d14 d13 d12 d11 d10 d9 d8 ack. by ad7416 stop by master frame 3 most significant data byte 19 scl (continued) sda (continued) d7 d6 d5 d4 d3 d2 d1 d0 ack. by ad7416 stop by master frame 4 least significant data byte 19 figure 10. writing to the address pointer register followed by two bytes of data to the t oti or t hyst register sda no ack. by master start by master frame 1 serial bus address byte frame 2 single data byte from ad7416 ack. by ad7416 191 9 d7 d6 d5 d4 d3 d2 d1 d0 r/ w a0 a1 a2 1 0 1 scl stop by master 0 figure 11. reading a single byte of data from the configuration register r/ w 1 scl sda 001a2a1a 0 d15 d14 d13 d12 d10 d11 d9 d8 ack. by master start by master frame 1 serial bus address byte frame 2 most significant data byte from ad7416 19 1 ack. by ad7416 9 d7 d6 d5 d4 d3 d2 d1 d0 no ack. by master stop by master frame 3 least significant data byte from ad7416 19 scl (continued) sda (continued) figure 12. reading two bytes of data from the t oti or t hyst register
rev. e ad7416/ad7417/AD7418 e13e t oti t hyst oti output comparator mode oti output interrupt mode read * read * read * read * read * read * read * in interrupt mode, a read operation or shutdown resets the oti output; otherwise the oti output remains active indefinitely, once triggered. * figure 13. operation of oti output (shown active low) the open-drain configuration of oti allows the oti outputs of several ad7416/ad7417/AD7418s to be wire-anded together when in active low mode. t he oti o utput is used to indicate that an out -of-limit tem- perature excursion has occurred. oti is an open-drain output that can be programmed to be active low by setting bit d2 of the configuration register to 0, or active high by setting bit d2 of the configuration register to 1. in the interrupt mode (d1 = 1), the oti output becomes active when the temperature exceeds t oti and remains active even if the temperature falls below t hyst , until it is reset by a read opera- tion. once oti has become active by the temperature exceeding t oti , and has then been reset, it will remain inactive even if the temperature remains, or subsequently rises again, above t oti . it will not become active again until the temperature falls below t hyst . it will then remain active until reset by a read operation. once oti has become active by the temperature falling below t hyst and then reset, it will remain inactive even if the tempera ture remains, or subsequently falls again, below t hyst . oti is also reset when the ad7416 /ad7417/ad 7418 is placed in shutdown mode by setting bit d0 of the configuration regis- ter to 1. the oti output requires an external pull-up resistor. this can be connected to a voltage different from v dd (for example, to allow interfacing between 5 v and 3.3 v systems) provided that the maximum voltage rating of the oti output is not exceeded. the value of the pull-up resistor depends on the application but should be as large as possible to avoid excessive sink currents at the oti output, which can heat the chip and affect the tempera ture reading. the maximum value of the pull-up resistor that will meet t he output high current specification of the oti output is 30 k , but higher values may be used if a lower output current is req uired. for most applications, a value of 10 k will prove suitable. fault queue to avoid false triggering of the ad7416/ad 7417/AD7418 in noisy environments, a fault queue counter is provided that can be programmed by bits d3 and d4 of the configuration regis- ter (see table v) to count 1, 2, 4, or 6 fault events before oti becomes active. in order to trigger oti, the faults must occur consecutively. for example, if the fault queue is set to 4, then four consecutive temperature measurements greater than t oti (or less than t hyst ) must occur. any reading that breaks the sequence will reset the fault queue counter, so if there are three readings greater than t oti followed by a reading less than t oti , the fault queue counter will be reset without triggering oti. power-on defaults the ad7416/ad7417/AD7418 always powers up with the following defaults: address pointer pointing to temperature value register comparator mode: t oti = 80 c t hyst = 75 c oti active low fault queue = 1 these default settings allow the ad7416/ad 7417/AD7418 to be used as a standalone thermostat without any connection to a serial bus. operating modes t he ad7416 /ad7417/AD7418 has two possible modes of operation depending on the value of d0 in the configuration register. mode 1 n ormal operation of the ad7416/ad 7417/AD7418 occurs when d0 = 0. in this active mode, a conversion takes place every 400 s. once the conversion has taken place, the part partially powers down, consuming typically 350 a of the current until the next conversion occurs. two situations can arise in this mode on the request of a temperature read. if a read occurs during a conversion, the conversion aborts and a new one starts on the stop/repeat start condition. the temperature value that is read is that of the previous completed conversion. the next conversion will typically occur 400 s after the new conversion has begun. if a read is called between conversions, a conversion is initiated on the stop/repeat start condition. after this conversion, the part returns to performing a conversion every 400 s. with a v dd = 3 v, for each 400 s cycle, the ad7416 spends 40 s (or 10% of the time) in conversion mode. it spends 360 s (or 90% of time) in partial power-down mode. thus, the average power dissipated by the ad7416/ad 7417/AD7418 is: 3 mw 0.1 + 1 mw 0.9 = 1.2 mw mode 2 for applications where temperature measurements are required at a slower rate e.g., every second, power consumption of the part can be reduced by writing to the part to go to a full power-down between reads. the current consumption in full power-down is typically 0.2 a and full power-down is initiated when d0 = 1 in the configuration register. when a measurement is required, a wr ite operation can be performed to power-up the part. the part then performs a conversion and is returned to power-down. t he t emperature value can be read in the full power-down because the i 2 c bus is continuously active. t he power dissipation in this mode depends on the rate at which reads take place. taking the requirements for a tempera- ture measurement every 100 ms as an example, the optimum power dissipation is achieved by placing the part in full power- down, waking it up every 100 ms, letting it operate for 400 s and putting it into full power-down again. in this case, the aver- age power consumption is calculated as follows. the part spends 40 s (or 0.04% of time) converting with 3 mw dissipation and
rev. e ad7416/ad7417/AD7418 e14e a 99.96 ms (99.96% of time) in full shutdown with 60 nw dissi- pation. thus, the average power dissipation is: 3 mw 0.004 + 60 nw 0.9996 = 1.2 w the fastest throughput rate at which the ad7416 /ad7417/AD7418 can be operated is 2.5 khz (i.e., a read every 400 s conversion period). since t oti and t hyst are 2-byte reads, the read time with the i 2 c operating at 100 kbit/s would be 270 s. if temperature reads are called too often, reads will overlap with conversions, aborting them continuously, which results in invalid readings. convert start mode the ad7417/AD7418 has an extra mode, set by writing to the msb of the config2 register. convst convst convst convst t convst t convst convst convst convst convst convst convst t convst convst ctonsnoton scon t v nt owonst t v v n t t ct c
rev. e ad7416/ad7417/AD7418 e15e thermostat figure 15 shows the ad7416 used as a thermostat. the heater will be switched on when the temperature falls below t hyst and switched off again when the temperature rises above t os . for this application and for comparator mode, the oti output should be programmed active low. v dd 3v to 5.5v ad7416 r1 10k q1 2n3904 or similar relay d1 1n4001 heater heater supply rla1 figure 15. ad7416 used as a thermostat processor ad7416 super i/o chip ad7416 ad7416 ad7416 ad7416 ad7416 ad7416 ad7416 v dd 3v to 5.5v r1 10k figure 16. multiple connection of ad7416s to a single serial bus system with multiple ad7416s t he three lsbs of the ad7416 convst v n c s convst convst t c s
rev. e ad7416/ad7417/AD7418 C16C outline dimensions c01126C0C10/02(e) printed in u.s.a. 16-lead thin shrink small outline package [tssop] (ru-16) dimensions shown in millimeters 16 9 8 1 pin 1 seating plane 8 0 4.50 4.40 4.30 6.40 bsc 5.10 5.00 4.90 0.65 bsc 0.15 0.05 1.20 max 0.20 0.09 0.75 0.60 0.45 0.30 0.19 coplanarity 0.10 compliant to jedec standards mo-153ab 16-lead standard small outline package [soic] narrow body (rn-16) dimensions shown in millimeters and (inches) controlling dimensions are in millimeters; inch dimensions (in parentheses) are rounded-off millimeter equivalents for reference only and are not appropriate for use in design compliant to jedec standards ms-012ac 16 9 8 1 4.00 (0.1575) 3.80 (0.1496) 10.00 (0.3937) 9.80 (0.3858) 1.27 (0.0500) bsc 6.20 (0.2441) 5.80 (0.2283) seating plane 0.25 (0.0098) 0.10 (0.0039) 0.51 (0.0201) 0.33 (0.0130) 1.75 (0.0689) 1.35 (0.0531) 8 0 0.50 (0.0197) 0.25 (0.0098) 1.27 (0.0500) 0.40 (0.0157) 0.25 (0.0098) 0.19 (0.0075) coplanarity 0.10 45 8-lead standard small outline package [soic] narrow body (rn-8) dimensions shown in millimeters and (inches) 0.25 (0.0098) 0.19 (0.0075) 1.27 (0.0500) 0.41 (0.0160) 0.50 (0.0196) 0.25 (0.0099) 45 8 0 1.75 (0.0688) 1.35 (0.0532) seating plane 0.25 (0.0098) 0.10 (0.0040) 85 4 1 5.00 (0.1968) 4.80 (0.1890) 4.00 (0.1574) 3.80 (0.1497) 1.27 (0.0500) bsc 6.20 (0.2440) 5.80 (0.2284) 0.51 (0.0201) 0.33 (0.0130) coplanarity 0.10 controlling dimensions are in millimeters; inch dimensions (in parentheses) are rounded-off millimeter equivalents for reference only and are not appropriate for use in design compliant to jedec standards ms-012aa 8-lead msop package [msop] (rm-8) dimensions shown in millimeters 0.23 0.08 0.80 0.40 8 0 85 4 1 4.90 bsc pin 1 0.65 bsc 3.00 bsc seating plane 0.15 0.00 0.38 0.22 1.10 max 3.00 bsc compliant to jedec standards mo-187aa coplanarity 0.10 revision history location page 10/02?ata sheet changed from rev. d to rev. e. edits to specifications headings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 added temperature measurement section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 edits to serial bus address section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 edits to figure 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 edits to convst pin mode section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 edits to power-on-reset section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 addition of figures 16 and 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 updated outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

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