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_______________________________________________________________ maxim integrated products 1 for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxims website at www.maxim-ic.com. max9632 36v, precision, low-noise, wide-band amplifier 19-5200; rev 2; 8/11 + denotes a lead(pb)-free/rohs-compliant package. * ep = exposed pad. ordering information general description the max9632 is a low-noise, precision, wide-band operational amplifier that can operate in a very wide +4.5v to +36v supply voltage range. the ic operates in dual (18v) mode. the exceptionally fast settling time and low distortion make the ic an excellent solution for precision acquisi - tion systems. the rail-to-rail output swing maximizes the dynamic range when driving high-resolution 24-bit ? adcs even with low supply voltages. the ic achieves 55mhz of gain-bandwidth product and ultra-low 0.94nv/ hz input voltage noise with only 3.9ma of quiescent current. the ic is offered in 8-pin so and tdfn packages and is rated for operation over the -40 n c to +125 n c tempera - ture range. applications high-resolution adc drivers high-resolution dac buffers medical imaging low-noise signal processing test and measurement systems ate features s 0.94nv/ hz ultra-low input voltage noise s very fast 600ns settling time to 16-bit accuracy s thd of -128db at 10khz s low input offset voltage 125v (max) s low input offset temperature drift 0.5v/c (max) s gain-bandwidth product 55mhz s +4.5v to +36v wide supply range s rail-to-rail output s unity-gain stable s 8-pin so and tdfn packages s esd 8kv hbm and 1kv cdm evaluation kit available frequency (hz) 10k 1k 100 10 100k input-voltage noise density vs. frequency max9632 toc12 input-voltage noise density (nv/ hz) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0 total harmonic distortion vs. output voltage max9632 toc23 output voltage (v) total harmonic distortion (thd) 1 -150 -140 -130 -120 -110 -100 -90 -80 -160 0.1 10 f = 10khz f = 1khz part temp range pin- package top mark max9632asa+ -40 n c to +125 n c 8 so max9632ata+ -40 n c to +125 n c 8 tdfn-ep* bml
2 ______________________________________________________________________________________ max9632 36v, precision, low-noise, wide-band amplifier stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. v cc to v ee ............................................................ -0.3v to +40v all other pins .................................. (v ee - 0.3v) to (v cc + 0.3v) short-circuit (gnd) duration, out ....................................... 10s continuous input current (any pin) ................................. q 20ma continuous power dissipation (t a = +70 n c) (note 1) multilayer so (derate 7.4mw/ n c above +70 n c) ......... 588mw multilayer tdfn (derate 23.8mw/ n c above +70 n c) ...1905mw esd protection hbm .............................................................................................. 8kv cdm ................................................................................... 1kv operating temperature range ........................ -40 n c to +125 n c junction temperature ..................................................... +150 n c lead temperature (soldering, 10s) ................................ +300 n c soldering temperature (reflow) ...................................... +260 n c electrical characteristics (v cc = 15v, v ee = -15v, r l = 10k i to v gnd , v in+ = v in- = v gnd = 0v, v shdn = v gnd , t a = -40 n c to +125 n c. typical values are at t a = +25 n c, unless otherwise noted.) (note 2) absolute maximum ratings note 1: package thermal resistances were obtained using the method described in jedec specification jesd51-7, using a four- layer board. for detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial . 6 tdfn junction-to-ambient thermal resistance ( q ja ) .......... 42c/w junction-to-case thermal resistance ( q jc ) ................. 8c/w 8 so junction-to-ambient thermal resistance ( q ja ) ........ 136c/w junction-to-case thermal resistance ( q jc ) ............... 38c/w package thermal characteristics (note 1) parameter symbol conditions min typ max units power supply supply voltage range v cc guaranteed by psrr 4.5 36 v supply current i cc 3.9 6.5 ma power-supply rejection ratio psrr t a = +25 n c 125 140 db -40 n c p t a p +125 n c 120 shutdown shutdown input voltage v shdn device disabled v cc - 0.35 v cc v device enabled v ee v cc - 3.0 shutdown current i shdn v shdn = v cc 1 15 f a dc specifications input offset voltage v os t a = +25 n c 30 125 f v -40 n c p t a p +125 n c 165 input offset voltage drift qd v os (note 3) 0.15 0.5 f v/ n c input bias current i b 30 180 na input offset current i os 15 100 na input common-mode range v cm guaranteed by cmrr v ee + 1.8 v cc - 1.4 v
_______________________________________________________________________________________ 3 max9632 36v, precision, low-noise, wide-band amplifier electrical characteristics (continued) (v cc = 15v, v ee = -15v, r l = 10k i to v gnd , v in+ = v in- = v gnd = 0v, v shdn = v gnd , t a = -40 n c to +125 n c. typical values are at t a = +25 n c, unless otherwise noted.) (note 2) note 2: all devices are 100% production tested at t a = +25 n c. temperature limits are guaranteed by design. note 3: guaranteed by design. parameter symbol conditions min typ max units common-mode rejection ratio cmrr v ee + 1.8v p v cm p v cc - 1.4v, t a = +25 n c 120 135 db v ee + 1.8v p v cm p v cc - 1.4v, -40 n c p t a p +125 n c 110 large-signal gain a vol v ee + 0.2v p v out p v cc - 0.2v, r l = 10k i 125 140 db v ee + 0.6v p v out p v cc - 0.6v, r l = 600 i 120 135 output voltage swing v oh v cc - v out r l = 10k i 50 150 mv r l = 600 i 150 400 v ol v out - v ee r l = 10k i 50 150 r l = 600 i 150 400 short-circuit current i sc t a = +25 n c 56 ma ac specifications gain-bandwidth product gbwp 55 mhz slew rate sr 0 p v out p 5v 30 v/ f s settling time t s to 0.0015%, v out = 10v p-p , c l = 100pf, av = 1v/v 600 ns total harmonic distortion thd f = 1khz, v out = 3v rms , r l = 600 i , av = 1v/v -136 db f = 10khz, v out = 3v rms , r l = 600 i , av = 1v/v -128 input-voltage noise density e n f = 1khz 0.94 nv/ hz input voltage noise 0.1hz p f p 10hz 65 nv p-p input-current noise density i n f = 1khz 3.75 pa/ hz capacitive loading c l no sustained oscillation, av = 1v/v 350 pf
4 ______________________________________________________________________________________ max9632 36v, precision, low-noise, wide-band amplifier typical operating characteristics (v cc = 15v, v ee = -15v, r l = 10k i to v gnd, v in+ = v in- = v gnd = 0v, v shdn = v gnd , t a = -40 n c to +125 n c . typical values are at t a = +25 n c, unless otherwise noted.) input offset voltage histogram max9632 toc01 input offset voltage (v) occurance (%) 50 40 30 20 10 5 10 15 20 25 30 35 0 0 60 input offset voltage temperature coefficient (nv/c) occurance (%) input offset voltage temperature coefficient histogram max9632 toc02 180 200 160 140 120 100 80 60 40 20 5 10 15 20 25 0 0 supply current vs. supply voltage max9632 toc03 supply voltage (v) supply current (ma) 35 30 20 25 10 15 5 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 3.0 0 40 supply current vs. temperature max9632 toc04 temperature ( c) 100 75 25 50 0 -25 -50 125 supply current (ma) 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 3.0 input offset voltage vs. common-mode voltage max9632 toc05 common-mode voltage (v) input offset voltage (v) 10 5 0 -5 -10 -56 -54 -52 -50 -48 -46 -44 -42 -40 -58 -15 15 t a = -40c t a = 0c t a = +25c t a = +85c t a = +125c input bias current vs. input common-mode voltage max9632 toc06 input bias current (na) -60 -50 -40 -30 -20 -10 0 -70 common-mode voltage (v) 10 5 0 -5 -10 -15 15 t a = +125c t a = +85c t a = 0c t a = +25c t a = -40c common-mode rejection ratio vs. frequency max9632 toc07 frequency (hz) common-mode rejection ratio (db) 10m 1m 10k 100k 100 1k 10 -140 -120 -100 -80 -60 -40 -20 0 20 -160 1 100m power-supply rejection ratio vs. frequency max9632 toc08 frequency (hz) power-supply rejection ratio (db) 10m 1m 10k 100k 100 1k 10 -140 -120 -100 -80 -60 -40 -20 0 20 -160 1 100m output voltage high vs. output current (source) max9632 toc09 output voltage high (v) 14.5 14.6 14.7 14.8 14.9 15.0 15.1 14.4 output source current (ma) 50 40 30 20 10 0 60 t a = 0c t a = +25c t a = +85c t a = +125c t a = -40c
_______________________________________________________________________________________ 5 max9632 36v, precision, low-noise, wide-band amplifier typical operating characteristics (continued) (v cc = 15v, v ee = -15v, r l = 10k i to v gnd, v in+ = v in- = v gnd = 0v, v shdn = v gnd , t a = -40 n c to +125 n c . typical values are at t a = +25 n c, unless otherwise noted.) output voltage low vs. output current (sink) max9632 toc10 output voltage low (v) -14.95 -14.90 -14.85 -14.80 -14.75 -14.70 -14.65 -14.60 -14.55 -15.00 output sink current (ma) 50 40 30 20 10 0 60 t a = +85c t a = 0c t a = -40c t a = +25c t a = +125c open-loop gain vs. frequency max9632 toc11 frequency (hz) open-loop gain (db) 10m 1m 10k 100k 100 1k 10 0 20 40 60 80 100 120 140 160 -20 1 100m frequency (hz) 10k 1k 100 10 100k input-voltage noise density vs. frequency max9632 toc12 input-voltage noise density (nv/ hz) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0 0.1hz to 10hz noise vs. time max9632 toc13 20nv/div 10s /div max9632 toc14 5 10 15 20 25 0 input-current noise density vs. frequency input current noise density (pa/ hz) frequency (hz) 10k 1k 100 10 100k output impedance vs. frequency max9632 toc15 frequency (hz) output impedance ( i ) 10m 1m 100k 10k 1k 100 10 20 30 40 50 60 70 0 10 100m input small-signal step response max9632 toc16 input 100mv/div output 50mv/div 200ns /div input large-signal step response max9632 toc17 input 2v/div output 500mv/div 1 s /div stability vs. capacitive and resistive load parallel max9632 toc18 capacitive load (pf) resistive load ( i ) 1000 800 600 400 200 100 200 300 400 500 600 700 800 900 1000 0 0 1200 stable unstable
6 ______________________________________________________________________________________ max9632 36v, precision, low-noise, wide-band amplifier typical operating characteristics (continued) (v cc = 15v, v ee = -15v, r l = 10k i to v gnd, v in+ = v in- = v gnd = 0v, v shdn = v gnd , t a = -40 n c to +125 n c . typical values are at t a = +25 n c, unless otherwise noted.) isolation resistance vs. capacitive stability max9632 toc19 capacitive load (pf) isolation resistance ( i ) 900 800 600 700 200 300 400 500 100 1 2 3 4 5 6 7 8 9 10 0 0 1000 stable unstable power-up time v cc = 5v, v ee = -5v max9632 toc20 v cc 10v/div gnd gnd output 500mv/div 1 s /div recovery from shutdown v cc = 5v, v ee = -5v max9632 toc21 shdn 5v/div gnd gnd output 500mv/div 1 s /div frequency (hz) 1k 100k total harmonic distortion (db) 10k 100 10 total harmonic distortion vs. frequency max9632 toc22 -150 -140 -130 -120 -110 -100 -160 total harmonic distortion vs. output voltage max9632 toc23 output voltage (v) total harmonic distortion (thd) 1 -150 -140 -130 -120 -110 -100 -90 -80 -160 0.1 10 f = 10khz f = 1khz
_______________________________________________________________________________________ 7 max9632 36v, precision, low-noise, wide-band amplifier pin configuration pin description top view not to scal e out n.c. v ee 1 2 8 7 shdn v cc out n.c. shdn v cc in- in+ n.c. v ee in- in+ n.c. so tdfn 3 4 6 5 max9632 max9632 + + 1 3 2 4 8 6 7 5 ep pin name function 1, 5 n.c. not connected 2 in- negative input 3 in+ positive input 4 v ee negative supply voltage 6 out output 7 v cc positive supply voltage 8 shdn active-high shutdown ep exposed pad (tdfn only). connect to a large v ee plane to maximize thermal performance. not intended as an electrical connection point.
8 ______________________________________________________________________________________ max9632 36v, precision, low-noise, wide-band amplifier detailed description the max9632 is designed in a new 36v, high-speed complementary bicmos process that is optimized for excellent ac dynamic performance combined with high- voltage operation. the ic offers precision, high-bandwidth, ultra-low noise and exceptional distortion performance. the ic is unity-gain stable and operates either with single-supply voltage up to 36v or with dual supplies up to q 18v. applications information operating supply voltage the ic can operate with dual supplies from q 2.25v to q 18v or with a single supply from +4.5v to +36v with respect to ground. even though the ic supports high- voltage operation with excellent performance, the device can also operate in very popular applications at 5v. low noise and low distortion the ic is designed for extremely low-noise applications such as professional audio equipment, very high perfor - mance instrumentations, automated test equipment, and medical imaging. the low noise, combined with fast set - tling time, makes it ideal to drive high-resolution sigma- delta or sars analog-to-digital converters. the ic is also designed for ultra-low-distortion perfor - mance. thd specifications in the electrical characteristics table and typical operating characteristics are calcu - lated up to the fifth harmonic. even when driving high- voltage swing up to 10v p-p , the ic maintains excellent low distortion operation over and above 100khz of bandwidth. rail-to-rail output stage the output stage swings to within 50mv (typ) of either power-supply rail with a 10k i load and provides a 55mhz gbw with a 30v/s slew rate. the device is unity-gain stable and can drive a 100pf capacitive load without compromising stability. stability with higher capacitive loads can be improved by adding an isola - tion resistor in series with the op-amp output. this resis - tor improves the circuits phase margin by isolating the load capacitor from the amplifiers output. the typical operating characteristics show a profile of the isolation resistor and capacitive load values that maintain the device into the stable region. input differential voltage protection during normal op-amp operation, the inverting and nonin - verting inputs of the ic are at essentially the same voltage. however, either due to fast input voltage transients or other fault conditions, these inputs can be forced to be at two different voltages. internal back-to-back diodes protect the inputs from an excessive differential voltage (figure 1). therefore, in+ and in- can be any voltage within the range shown in the absolute maximum ratings section. note the protection time is still dependent on the package thermal limits. if the input signal is fast enough to create the internal diodes forward bias condition, the input signal current must be limited to 20ma or less. if the input signal cur - rent is not inherently limited, an input series resistor can be used to limit the signal input current. care should be taken in choosing the input series resistor value, since it degrades the low-noise performance of the device. shutdown the shutdown is referenced to the positive supply. see the electrical characteristics table for the proper levels of functionality. a high level (above v cc - 0.35v) disables the op amp and puts the output into a high-impedance state. a low level (below v cc - 3v) enables the device. as an example, if the op amp is powered with dual supplies of q 15v, the device is enabled when shutdown is at or below 12v. the device is disabled when shutdown is at or above 14.65v. if the op amp is powered with a single supply of 36v, the device is enabled when shutdown is at or below 33v. the device is disabled when shutdown is at or above 35.65v. this input must be connected to a valid high or low voltage and should not be left disconnected. power supplies and layout the max9632 can operate with dual supplies from q 2.25v to q 18v or with a single supply from +4.5v to +36v with respect to ground. when used with dual supplies, bypass both v cc and v ee with their own 0.1 f f capacitor to ground. when used with a single supply, bypass v cc with a 0.1 f f capacitor to ground. figure 1. input protection circuit
_______________________________________________________________________________________ 9 max9632 36v, precision, low-noise, wide-band amplifier careful layout technique helps optimize performance by decreasing the amount of stray capacitance at the op amps inputs and outputs. to decrease stray capaci - tance, minimize trace lengths by placing external com - ponents close to the op amps pins. for high-frequency designs, ground vias are critical to provide a ground return path for high-frequency signals and should be placed near the decoupling capacitors. signal routing should be short and direct to avoid para - sitic effects. avoid using right angle connectors since they may introduce a capacitive discontinuity and ulti - mately limit the frequency response. electrostatic discharge (esd) the ic has built-in circuits to protect it from esd events. an esd event produces a short, high-voltage pulse that is transformed into a short current pulse once it discharges through the device. the built-in protection circuit provides a current path around the op amp that prevents it from being damaged. the energy absorbed by the protection circuit is dissipated as heat. esd protection is guaranteed up to q 8kv with the human body model (hbm). the human body model simulates the esd phenomenon wherein a charged body directly transfers its accumulated electrostatic charge to the esd-sensitive device. a common example of this phe - nomenon is when a person accumulates static charge by walking across a carpet and then transfers all of the charge to an esd-sensitive device by touching it. not all esd events involve the transfer of charge into the device. esd from a charged device to another body is also a common form of esd. if a charged device comes into contact with another conductive body that is at a lower potential, it discharges into that body. such an esd event is known as charged device model (cdm) esd, which can be even more destructive than hbm esd (despite its shorter pulse duration) because of its high current. the ic guarantees cdm esd protection up to q 1kv. driving high-resolution sigma-delta adcs the max9632s excellent ac specifications and 55mhz bandwidth are a good fit for driving high-speed, precision delta-sigma adcs. these adcs require an ultra-low noise op amp to achieve signal-to-noise ratios (snr) better than 100db. the max11040 is a 24-bit, 4-channel, simultane - ous-sampling adc with 117db snr at 1ksps and 106db at 16ksps. the max11040 measures analog inputs up to q 2.2v. sampling up to 64ksps, the max11040 achieves better than -94db thd and 94db sfdr. the max11040 measures four differential inputs simulta - neously, outputting the data through an spi? interface to allow daisy-chaining the data outputs and inputs together. therefore, up to eight max11040 devices can be placed in parallel to measure up to 32 inputs simulta - neously. this is ideal for 3-phase power monitoring that requires multiple current and voltage readings and very wide dynamic range. the typical application circuit shows an example of the max9632 driving the max11040. chip information process: bicmos spi is a trademark of mototrola, inc.
10 _____________________________________________________________________________________ max9632 36v, precision, low-noise, wide-band amplifier typical application circuit 1k i 180 i 180 i 1k i 10k i 10k i 4.7k i 4.7k i 22 f +15v -15v 22 f 1 f 1 nf in+ in- max9632 max9632 -15v +15v adc max11040
______________________________________________________________________________________ 11 max9632 36v, precision, low-noise, wide-band amplifier package information for the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages . note that a +, #, or - in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing pertains to the package regardless of rohs status. package type package code outline no. land pattern no. 8 so s8+2 21-0041 90-0096 8 tdfn-ep t833+3 21-0137 90-0060
12 _____________________________________________________________________________________ max9632 36v, precision, low-noise, wide-band amplifier package information (continued) for the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages . note that a +, #, or - in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing pertains to the package regardless of rohs status. common dimension s symbol min. max. a 0 .7 0 0 .8 0 d 2.90 3.10 e 2 .9 0 3 .1 0 a1 0.00 0.05 l 0 .2 0 0.40 pkg. code n d2 e2 e jedec spe c b [(n/2)-1] x e package variations 0.25 min. k a2 0.20 ref. 2.00 re f 0.250.05 0.50 bsc 2.300.10 10 t1033-1 2.40 re f 0.200.05 - - - - 0.40 bsc 1.700.10 2.300.10 14 t1433-1 1.500.10 mo229 / weed-3 0.40 bsc - - - - 0.200.05 2.40 re f t1433-2 14 2.300.10 1.700.10 t633- 2 6 1 .500.10 2.300.10 0.95 bsc mo229 / weea 0.400.05 1.90 re f t833- 2 8 1 .500.10 2.300.10 0.65 bsc mo229 / weec 0.300.05 1.95 re f t833- 3 8 1.500.10 2.300.10 0.65 bsc mo229 / weec 0.300.05 1.95 re f 2.300.10 mo229 / weed-3 2.00 re f 0.250.05 0.50 bsc 1.500.10 10 t1033-2 0.250.05 2.00 re f 10 0.50 bsc mo229 / weed-3 2.300.10 1.500.10 t1033mk-1 0.40 bsc - - - - 0.200.05 2.40 re f t1433-3f 14 2.300.10 1.700.10
______________________________________________________________________________________ 13 max9632 36v, precision, low-noise, wide-band amplifier package information (continued) for the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages . note that a +, #, or - in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing pertains to the package regardless of rohs status. common dimension s symbol min. max. a 0 .7 0 0 .8 0 d 2.90 3.10 e 2 .9 0 3 .1 0 a1 0.00 0.05 l 0 .2 0 0.40 pkg. code n d2 e2 e jedec spe c b [(n/2)-1] x e package variations 0.25 min. k a2 0.20 ref. 2.00 re f 0.250.05 0.50 bsc 2.300.10 10 t1033-1 2.40 re f 0.200.05 - - - - 0.40 bsc 1.700.10 2.300.10 14 t1433-1 1.500.10 mo229 / weed-3 0.40 bsc - - - - 0.200.05 2.40 re f t1433-2 14 2.300.10 1.700.10 t633- 2 6 1 .500.10 2.300.10 0.95 bsc mo229 / weea 0.400.05 1.90 re f t833- 2 8 1 .500.10 2.300.10 0.65 bsc mo229 / weec 0.300.05 1.95 re f t833- 3 8 1.500.10 2.300.10 0.65 bsc mo229 / weec 0.300.05 1.95 re f 2.300.10 mo229 / weed-3 2.00 re f 0.250.05 0.50 bsc 1.500.10 10 t1033-2 0.250.05 2.00 re f 10 0.50 bsc mo229 / weed-3 2.300.10 1.500.10 t1033mk-1 0.40 bsc - - - - 0.200.05 2.40 re f t1433-3f 14 2.300.10 1.700.10
maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circuit patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. 14 maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 ? 2011 maxim integrated products maxim is a registered trademark of maxim integrated products, inc. max9632 36v, precision, low-noise, wide-band amplifier revision history revision number revision date description pages changed 0 10/10 initial release 1 4/11 updated short-circuit current spec 3 2 8/11 updated tdfn land pattern number 11

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