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max14802/max14803/ max14803a low-charge injection, 16-channel, high-voltage analog switches 19-4484; rev 4; 6/13 for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim? website at www.maximintegrated.com. general description the max14802/max14803/max14803a provide high-voltage switching on 16 channels for ultrasonic imaging and printer applications. the devices utilize hvcmos process technology to provide 16 high-voltage low- charge-injection spst switches, controlled by a digital interface. data is clocked into an internal 16-bit shift register and retained by a programmable latch with enable and clear inputs. a power-on reset function ensures that all switches are open on power-up. the max14802/max14803/max14803a operate with a wide range of high-voltage supplies including v pp /v nn = +100v/-100v, +200v/0v, or +40v/-160v. the digitalinterface operates from a separate +2.7v to +5.5v v dd supply. digital inputs din, clk, le , and clr operate on the v dd supply voltage. the max14803/max14803a provide integrated 35k bleed resistors on each switch terminal to dischargecapacitive loads. the max14802/max14803/ max14803a provide integrated clamping diodes for overvoltage protection against positive overshoot. the max14802 is available in a 48-pin tqfp package and is specified for commercial 0? to +70? andextended -40? to +85? temperature ranges. the max14803 is available in a 48-pin tqfp package and is specified for the commercial 0? to +70? tem- perature range. the max14803a is available in the 110-bump wafer level package (wlp) and is specified at the -40? to +85? temperature range. applications ultrasound imagingprinters features ? integrated overvoltage protection ? 20mhz serial interface (5v) ? hvcmos technology for high performance ? individually programmable high-voltage analogswitches ? very low 5? (typ) quiescent current ? dc-to-20mhz low-voltage analog signalfrequency range ? 2.7v to 5.5v logic supply voltage ? low-charge injection, low-capacitance r l switches ? -77db (typ) off-isolation at 5mhz (r l = 50 ) ? daisy-chainable serial interface ? flexible high-voltage supplies (v pp - v nn = 250v) ordering information/selector guide part switch channels bleed resistor ovp pin-package temp range ma14802 ccm+ 16 no yes 48 tqfp 0c to +70c max14802ecm+ 16 no yes 48 tqfp -40c to +85c ma14803 ccm+ 16 yes yes 48 tqfp 0c to +70c ma14803a ewz+ 16 yes yes 110 wlp -40c to +85c pin configurations appear at end of data sheet. + denotes a lead(pb)-free/rohs-compliant package. downloaded from: http:///
max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches 2 maxim integrated absolute maximum ratingselectrical characteristics (v dd = +2.7v to +5.5v, v pp = +40v to v nn + 250v, v nn = -40v to -160v, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) (note 2) stresses beyond those listed under ?bsolute 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. note 1: package thermal resistances were obtained using the method described in jedec specification jesd51-7, using a four-layerboard. for detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial . (all voltages referenced to gnd.)v dd logic-supply voltage .......................................-0.3v to +7v v pp - v nn supply voltage (max14802ccm+, max14803ccm+)..............................260v (max14802ecm+, max14803aewz+) ............................230v v pp positive-supply voltage.................................-0.3v to +220v v nn negative-supply voltage ...............................-0.3v to -220v logic inputs ( le , clr, clk, din, dout)................-0.3v to +7v com_, no_...............................(-0.3v + v nn ) to the minimum of [(v nn + 220v) or (v pp + 0.3v)] peak analog signal current per channel ................................3a continuous power dissipation (t a = +70?) 48-pin tqfp (derate 22.7mw/? above +70?).........1818mw 110-bump wlp (derate 37mw? above +70?)........2960mw operating temperature range (commercial) ........0? to +70? operating temperature range (extended).........-40? to +85? storage temperature range .............................-65? to +150? junction temperature ..................................................... +150? lead temperature (soldering, 10s) .................................+300? soldering temperature (reflow) .......................................+260? package thermal characteristics (note 1)tqfp junction-to-ambient thermal reistance ( ja )..............44?/w junction-to-case thermal resistance ( jc ).................10?/w wlp junction-to-ambient thermal reistance ( ja )..............27?/w junction-to-case thermal resistance ( jc )...................1?/w parameter symbol conditions min typ max units power supplies v dd supply voltage v dd +2.7 +5.5 v max14802ecm+, max14803aewz+ +40 +100 v nn + 200 v pp supply voltage v pp max14802ccm+, max14803ccm+ +40 +100 v nn + 250 v v nn supply voltage v nn -160 -100 0 v v dd supply quiescent current i ddq 5 a v dd supply dynamic current i dd v dd = +5v, v le = +5v, f clk = 5mhz 0.5 ma v pp supply quiescent current i ppq all switches remain on or off, i com_ = 5ma 0 10 a downloaded from: http:///
max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches 3 maxim integrated parameter symbol conditions min typ max units v pp = +40v, v nn = -160v, f com_ = 50khz 4 v pp = +100v, v nn = -100v, f com_ = 50khz 3.4 6 v pp supply dynamic current (all channels w i tchi ng s i m ul taneousl y) i pp v pp = +160v, v nn = -40v, f com_ = 50khz 8 ma v nn supply quiescent current i nnq all switches remain on or off, i com_ = 5ma 0 10 a v pp = +40v, v nn = -160v, f com_ = 50khz 5 v pp = +100v, v nn = -100v, f com_ = 50khz 2.3 4 v nn supply dynamic current (all channels w i tchi ng s i m ul taneousl y) i nn v pp = +160v, v nn = -40v, f com_ = 50khz 3 ma analog switch com_, no_ analog signalrange v com_ , v no_ (note 3) v nn m i n of ( v n n + 200v) or (v pp - 10v) v i com_ = 5ma 26 48 v pp = +40v, v nn = -160v, v com_ = 0v i c om _ = 200m a2 2 3 2 i com_ = 5ma 22 30 v pp = +100v, v nn = -100v, v com_ = 0v i c om _ = 200m a1 8 2 7 i com_ = 5ma 20 30 small-signal switchon-resistance r ons v pp = +160v, v nn = -40v, v com_ = 0v i c om _ = 200m a1 6 2 7 small-signal switchon-resistance matching ? r ons v pp = +100v, v nn = -100v, v com_ = 0v, i com_ = 5ma 5% large-signal switchon-resistance r onl v com_ = v pp - 10v, i com_ = 1a 15 shunt resistance r int n o_ or c om _ to gn d ( m ax14803/m ax 14803a), switch off 30 40 50 k switch-off leakage i com_ ( off ), i no_ ( off ) v com_ , v no_ = +100v or unconnected 0 2 ? switch-off dc offset r l = 100k -30 +30 mv switch-output peakcurrent 100ns pulse width, 0.1% duty cycle (note 4) 3 a switch-output com_isolation diode current 300ns pulse width, 2% duty cycle (note 4) 500 ma electrical characteristics (continued)(v dd = +2.7v to +5.5v, v pp = +40v to v nn + 250v, v nn = -40v to -160v, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) (note 2) downloaded from: http:///
max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches 4 maxim integrated electrical characteristics (continued)(v dd = +2.7v to +5.5v, v pp = +40v to v nn + 250v, v nn = -40v to -160v, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) (note 2) parameter symbol conditions min typ max units switch dynamic characteristics turn-on time t on v no_ = +100v, r l = 10k , v nn = -100v 2 3.5 ? turn-off time t off v no_ = +100v, r l = 10k , v nn = -100v 2 3.5 ? output switchingfrequency f sw duty cycle = 50% 50 khz maximum v com_ , v no_ slew rate dv/dt (note 4) 20 v/ns f = 5mhz, r l = 1k , c l = 15pf -50 off-isolation v iso f = 5mhz, r l = 50 -77 db crosstalk v ct f = 5mhz, r l = 50 -80 db com_, no_ off-capacitance c com_ ( off ), c no_ ( off ) v com_ = 0v, v no_ = 0v, f = 1mhz (note 4) 4 11 18 pf com_ on-capacitance c com_ ( on ) v com_ = 0v, f = 1mhz (note 4) 20 36 56 pf output-voltage spike v spk r l = 50 _ (note 4) -150 +150 mv small-signal analogbandwidth f bw v pp = +100v, v nn = -100v, c l = 200pf 20 mhz v pp = +40v, v nn = -160v, v com_ = 0v 820 v pp = +100v, v nn = -100v, v com_ = 0v 600 charge injection q v pp = +160v, v nn = -40v, v com_ = 0v 350 pc logic levels logic-input low voltage v il 0.75 v logic-input high voltage v ih v dd - 0.75 v logic-output low voltage v ol i sink = 1ma 0.4 v logic-output high voltage v oh i source = 0.75ma v dd - 0.5 v logic-input capacitance c in (note 4) 10 pf logic-input leakage i in -1 +1 ? downloaded from: http:///
max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches 5 maxim integrated timing characteristics(v dd = +2.7v to +5.5v, v pp = +40v to v nn + 200v, v nn = -40v to -160v, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) (note 2) parameter symbol conditions min typ max units logic timing (figure 1) v dd = +5v ?0% 20 clk frequency f clk v dd = +3v ?0% 10 mhz v dd = +5v ?0% 10 din to clk setup time t ds v dd = +3v ?0% 16 ns v dd = +5v ?0% 3 din to clk hold time t dh v dd = +3v ?0% 3 ns v dd = +5v ?0% 36 clk to le setup time t cs v dd = +3v ?0% 65 ns v dd = +5v ?0% 14 le low-pulse width t wl v dd = +3v ?0% 22 ns v dd = +5v ?0% 20 clr high-pulse width t wc v dd = +3v ?0% 40 ns v dd = +5v ?0% 50 clk rise and fall times t r , t f v dd = +3v ?0% 50 ns v dd = +5v ?0% 6 42 clk to dout delay t do v dd = +3v ?0% 12 80 ns note 2: all devices are 100% tested at t a = +70?. limits over the operating temperature range are guaranteed by design and characterization. note 3: the analog signal input v com_ and v no_ must satisfy v nn (v com_ , v no_ ) v pp , or remain unconnected during power-up and power-down. note 4: guaranteed by characterization; not production tested. downloaded from: http:///
max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches 6 maxim integrated test circuits max14802max14803 max14803a +100v -100v +100v -100v v pp v nn no_ com_ v pp +100v -100v v nn v dd switch off leakage gnd +5v i sol max14802max14803 max14803a v out r l 100k v pp v nn no_ com_ v pp v nn v dd dc offset on/off gnd +5v max14802max14803 max14803a v out v pp v pp - 10v v nn no_ com_ v pp v nn v dd t on /t off test circuit gnd +5v r l 100k max14802max14803 max14803a v pp v nn no_ com_ v pp v nn v dd off isolation v iso = 20log v out v in gnd +5v max14802max14803 max14803a v out v out = 10v p-p at 5mhz v pp v nn com_ i id v pp v nn no_ v pp v nn v dd isolation diode current gnd +5v max14802max14803 max14803a v out v out v com_ v pp v nn no_ 100pf com_ v pp v nn v dd q = 1000pf x v out charge injection gnd +5v max14802max14803 max14803a v out +v spk -v spk v pp v nn no_ com_ v pp v nn v dd output-voltage spike gnd +5v r l v out max14802max14803 max14803a v pp v nn no_ com_ no_ com_ v pp v nn v dd crosstalk v ct = 20log v out v in gnd +5v v out = 10v p-p at 5mhz 50 v nn 50 50 r l 1k downloaded from: http:///
max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches 7 maxim integrated on-resistance vs. analog signal voltage max14800 toc01 v com_ (v) on-resistance ( ) 100 50 0 -50 -100 20 40 60 80 100 120 140 160 180 0 -150 150 v pp = +160v, v nn = -40v v pp = +40v, v nn = -160v v pp = +100v, v nn = -100v on-resistance vs. analog signal voltage max14800 toc02 v com_ (v) on-resistance ( ) -50 0 50 20 40 60 80 100 120 140 160 0 -100 100 v pp = +100v, v nn = -100v t a = +25 c t a = +70 c t a = 0 c turn-on/turn-off time vs. analog signal voltage max14800 toc03 v no_ (v) turn-on/turn-off time ( s) 60 30 0 -60 -30 1 2 3 4 50 -90 90 t off t on off-isolation vs. frequency max14800 toc04 frequency (mhz) off-isolation (db) 10 0.01 1 0.1 -60 -40 -20 0 -80 0.001 100 t a = +25 c t a = +70 c t a = 0 c leakage current vs. temperature max14800 toc05 temperature ( c) leakage current (na) 40 20 60 10 50 30 2.5 3.0 3.5 4.0 4.5 5.02.0 07 0 i com_(on) (v com_ = +90v) i com_(on) (v com_ = -90v) i com_(off) (v com_ = -90v) i com_(off) (v com_ = +90v) i com_(off) (v com_ = 0v) i com_(on) (v com_ = 0v) logic supply current vs. supply voltage max14800 toc06 v dd supply voltage (v) i ddq supply current ( a) 4.7 5.1 4.3 3.1 3.5 3.9 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0 2.7 5.5 t a = +25 c t a = +70 c t a = 0 c high-voltage supply current vs. temperature max14800 toc07 temperature ( c) supply current ( a) 30 10 60 20 40 50 0.05 0.10 0.15 0.20 0 07 0 i pp v pp = +100v v nn = -100v i nn logic supply current vs. serial-clock frequency max14800 toc08 clk serial-clock frequency (mhz) i dd supply current ( a) 8 26 4 100 50 150 200 250 0 01 0 t a = +25 c t a = +70 c t a = 0 c high-voltage supply current vs. switching frequency max14800 toc09 switching frequency (khz) supply current (ma) 40 10 30 20 2 4 6 80 05 0 i pp all switches switchingt a = +25 c i nn typical operating characteristics (v dd = +3v, v pp = +100v, v nn = -100v, t a = +25?, unless otherwise noted.) downloaded from: http:///
max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches 8 maxim integrated pin description pin tqfp wl p name function 1, 2, 14, 16, 24, 35, 36 a1, a3, a5, a8, a9, a11, b1Cb5, b10, b11, c1, c3, c5, c6, c7, c9, c11, d2, d4Cd8, d10, e1, e3Ce9, e11, f2, f4Cf8, f10, g1, g3, g5, g6, g7, g9, g11, h2, h4, h6, h8, h10, j1, j3, j5, j6, j7, j9, j11, k1, k2, k4, k6, k8, k10, k11 n.c. no connection. not internally connected. 3 j2 com4 analog switch 4common terminal 4 h1 no4 analog switch 4normally-open terminal 5 f3 no3 analog switch 3normally-open terminal 6 f1 com3 analog switch 3common terminal 7 g2 no2 analog switch 2normally-open terminal 8 e2 com2 analog switch 2common terminal 9 d3 com1 analog switch 1common terminal 10 d1 no1 analog switch 1normally-open terminal 11 c2 no0 analog switch 0normally-open terminal 12 c4 com0 analog switch 0common terminal 13 a4 v nn negative high-voltage supply. bypass v nn to gnd with a 0.1f or greater ceramic capacitor. 15 a2 v pp positive high-voltage supply. bypass v pp to gnd with a 0.1f or greater ceramic capacitor. 17 b6 gnd ground 18 a10 v dd digital supply voltage. bypass v dd to gnd with a 0.1f or greater ceramic capacitor. 19 b7 din serial-data input 20 a6 clk serial-clock input 21 b8 le active-low, latch-enable input 22 b9 clr latch clear input 23 a7 dout serial-data output 25 c8 com15 analog switch 15common terminal 26 c10 no15 analog switch 15normally-open terminal 27 d11 no14 analog switch 14normally-open terminal 28 d9 com14 analog switch 14common terminal 29 e10 com13 analog switch 13common terminal 30 g10 no13 analog switch 13normally-open terminal 31 f11 com12 analog switch 12common terminal downloaded from: http:///
max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches 9 maxim integrated pin description (continued) pin tqfp wl p name function 32 f9 no12 analog switch 12normally-open terminal 33 h11 no11 analog switch 11normally-open terminal 34 j10 com11 analog switch 11common terminal 37 h9 com10 analog switch 10common terminal 38 k9 no10 analog switch 10normally-open terminal 39 j8 com9 analog switch 9common terminal 40 g8 no9 analog switch 9normally-open terminal 41 h7 com8 analog switch 8common terminal 42 k7 no8 analog switch 8normally-open terminal 43 k5 no7 analog switch 7normally-open terminal 44 h5 com7 analog switch 7common terminal 45 g4 no6 analog switch 6normally-open terminal 46 j4 com6 analog switch 6common terminal 47 k3 no5 analog switch 5normally-open terminal 48 h3 com5 analog switch 5common terminal din d n+1 d n-1 d n 50% 50% 50% 50% 50% 50% 50% 90% 10% 50% t cs t wl t ds t dh t do t off t wc t on 50% le clk dout off on switch clr figure 1. serial interface timing downloaded from: http:///
max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches 10 maxim integrated detailed description the max14802/max14803/max14803a provide high-voltage switching on 16 channels for ultrasound imag- ing and printer applications. the devices utilize hvcmos process technology to provide 16 high-volt- age low-charge-injection spst switches, controlled by a digital interface. data is clocked into an internal 16- bit shift register and retained by a programmable latch with enable and clear inputs. a power-on-reset function ensures that all switches are open on power-up. the max14802/max14803/max14803a operate with a wide range of high-voltage supplies including: v pp /v nn = +100v/-100v, +200v/0v, or +40v/-160v. the digitalinterface operates from a separate +2.7v to +5.5v v dd supply. digital inputs din, clk, le , and clr operate on the v dd supply voltage. the max14803/max14803a provide integrated 35k bleed resistors on each switch terminal to discharge capacitive loads. the max14802/ max14803/max14803a feature clamping diodes (atthe com_). these clamping diodes provide overvolt- age protection against positive overshoot. analog switch the max14802/max14803/max14803a allow a peak-to-peak analog signal range from v nn to the minimum of either v nn + 200v or (v pp - 10v). analog switch inputs must be unconnected, or satisfy v nn (v com_ , v no_ ) v pp during power-up and power-down. high-voltage supplies the max14802/max14803/max14803a allow a widerange of high-voltage supplies. the devices operate with v nn from -160v to 0 and v pp from +40v to v nn + 250v. when v nn is connected to gnd (single-supply applications), the devices operate with v pp up to +200v. the v pp and v nn high-voltage supplies are not required to be symmetrical, but the voltage difference(v pp - v nn ) must not exceed 250v. bleed resistors (max14803/max14803a) the max14803/max14803a feature integrated 35k bleed resistors to discharge capacitive loads such aspiezoelectric transducers. each analog switch terminal is connected to gnd with a bleed resistor. overvoltage protection the max14802/max14803/max14803a feature clamp-ing diodes (at the com_). these clamping diodes pro- vide overvoltage protection against positive overshoot. serial interface the max14802/max14803/max14803a are controlledby a serial interface with a 16-bit serial shift register and transparent latch. each of the 16 data bits controls a single analog switch (table 1). data on din is clocked with the most significant bit (msb) first into the shift register on the rising edge of clk. data is clocked out of the shift register onto dout on the rising edge of clk. dout reflects the status of din, delayed by 16 clock cycles (figures 1 and 2). latch enable ( le ) drive le logic-low to change the contents of the latch and update the state of the high-voltage switches(figure 2). drive le logic-high to freeze the contents of the latch and prevent changes to the switch states. toreduce noise due to clock feedthrough, drive le logic- high while data is clocked into the shift register. afterthe data shift register is loaded with valid data, pulse le logic-low to load the contents of the shift register into the latch. latch clear (clr) the max14802/max14803/max14803a feature a latchclear input. drive clr logic-high to reset the contents of the latch to zero and open all switches. clr does not affect the contents of the data shift register. pulse le logic-low to reload the contents of the shift register into the latch. power-on reset the max14802/max14803/max14803a feature apower-on-reset circuit to ensure all switches are open at power-on. the internal 16-bit serial shift register and latch are set to zero on power-up. downloaded from: http:///
max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches 11 maxim integrated din data from previous data byte power-up default: d15?0 = 0 d15 d15 d14 d13 d14 d13 d1 d0 d1 d0 d15 lsb msb le clk dout data bits control bits function d0 (lsb) d1 d2 d3 d4 d5 d6 d7 le clr sw0 sw1 sw2 sw3 sw4 sw5 sw6 sw7 ll l off hl lo n l l l off h l lo n l l l off h l lo n l l l off h l lo n l l l off h l lo n l l l off h l lo n l l l off h l lo n ll l off hl l on x xxxxxx x hl hold previous state x xxxxxx x x h off off off off off off off off figure 2. latch enable interface timing table 1. serial interface programming (notes 5?0) downloaded from: http:///
max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches 12 maxim integrated data bits control bits function d8 d9 d10 d11 d12 d13 d14 d15 (msb) le clr sw8 sw9 sw10 sw11 sw12 sw13 sw14 sw15 ll l off hl lo n l l l off h l lo n l l l off h l lo n l l l off h l lo n l l l off h l lo n l l l off h l lo n l l l off h l lo n ll l off hl l on x xx x x x x x hl hold previous state x xx x x x x x x h off off off off off off off off table 1. serial interface programming (notes 5?0) (continued) x = don? care. note 5: the 16 switches operate independently. note 6: serial data is clocked in on the rising edge of clk. note 7: the switches go to a state retaining their present condition on the rising edge of le . when le is low, the shift register data flows through the latch. note 8: dout is high when switch 15 is on. note 9: shift register clocking has no effect on the switch states if le is high. note 10: the clr input overrides all other inputs. downloaded from: http:///
max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches 13 maxim integrated applications information for medical ultrasound applications, see figures 4, 5,and 6. logic levels the max14802/max14803/max14803a digital inter-face inputs clk, din, le , and clr operate on the v dd supply voltage. daisy-chaining multiple devices digital output dout is provided to allow the connectionof multiple max14802/max14803/max14803a devices by daisy-chaining (figure 3). connect each dout to the din of the subsequent device in the chain. connect clk, le , and clr inputs of all devices, and drive le logic-low to update all devices simultaneously. drive clr high toopen all the switches simultaneously. additional shift reg- isters can be included anywhere in series with the max14802/max14803/max14803a data chain. supply sequencing and bypassing the max14802/max14803/max14803a do not requirespecial sequencing of the v dd , v pp , and v nn supply voltages; however, analog switch inputs must beunconnected, or satisfy v nn (v com_ , v no_ ) v pp during power-up and power-down. bypass v dd , v pp , and v nn to gnd with a 0.1? ceramic capacitor as close as possible to the device. application diagrams max14802max14803 max14803a max14802max14803 max14803a max14802max14803 max14803a max14802max14803 max14803a max14802max14803 max14803a max14802max14803 max14803a clk din clkle clr u10 u11 u1n u20 u21 u2n dout din1 le clr din2 din clkle clr dout din clkle clr dout din clkle clr dout din clkle clr dout din clkle clr dout figure 3. interfacing multiple devices by daisy-chaining downloaded from: http:///
max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches 14 maxim integrated high-voltage transmit 1 per channel probe selection 2 to 4 probes relay 1 relay/ch/probe cable 1 per channel transducers 2 to 4 per channel hv analog switches 2 to 4 per channel 100v max 1 to 2a max mainframe +v -v probes 1v max 10ma typ high-voltage isolation low-voltage receive 64 to 128 channels probe b probe a probe c probe d figure 4. medical ultrasound application?igh-voltage analog switches in probe downloaded from: http:///
max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches 15 maxim integrated probe a hv transmit 1 per channel probe selection 2 to 4 probes relays 2 to 4 relays/ch/probe cable 2 to 4 per channel transducers 2 to 4 per channel hv analog switches 2 to 4 per channel 100v max 1 to 2a max mainframe +v -v probes 1v max 10ma typ high-voltage isolation lv receive 64 to 128 channels probe b probe c probe d figure 5. medical ultrasound application?igh-voltage analog switches in mainframe downloaded from: http:///
max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches 16 maxim integrated probe a high-voltage transmit 2 to 4 per channel high-voltageisolation and channel select 2 to 4 per channel low-voltage receive 64 to 128 channels probe selection 2 to 4 probes relays 2 to 4 relays/ch/probe cable 2 to 4 per channel transducers 2 to 4 per channel 100v max 1 to 2a max mainframe +v -v probes 1v max 10ma typ probe b probe c probe d +v -v +v -v +v -v +v -v +v -v +v -v +v -v figure 6. medical ultrasound application?ultiple transmit and isolation per receiver channel downloaded from: http:///
max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches 17 maxim integrated functional diagram max14802max14803 max14803a 16-bit shift register latch v dd v pp *bleed resistors available on the max14803/max14803a only. gnd v nn level shifter clr v pp com0 no0 v nn * * v nn din clk dout le latch level shifter v pp com15 no15 v nn ** v nn downloaded from: http:///
max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches 18 maxim integrated top view max14802max14803 tqfp (7mm x 7mm) + 13 14 15 16 17 18 19 20 21 22 23 24 v nn n.c. v pp n.c. gnd v dd din clk le clr dout n.c. 48 47 46 45 44 43 42 41 40 39 38 37 1 2 345678910 11 12 com5 no5 com6 no6 com7 no7 no8 com8 no9 com9 no10 com10 com0 no0 no1 com1 com2 no2 com3 no3 no4 com4 n.c. n.c. 36 35 34 33 32 31 30 29 28 27 26 25 com15 no15 no14 com14 com13 no13 com12 no12 no11 com11 n.c. n.c. pin configurations downloaded from: http:///
max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches 19 maxim integrated 1 ab cd ef gh j k 234567891 01 1 + n.c.n.c. n.c. no1 n.c. com3 n.c.no4 n.c. n.c. v pp n.c.no0 n.c. com2 n.c.no2 n.c. com4 n.c. n.c.n.c. n.c. com1 n.c.no3 n.c. com5 n.c.no5 v nn n.c. com0 n.c.n.c. n.c. no6 n.c. com6 n.c. n.c.n.c. n.c. n.c. n.c. n.c. n.c. com7 n.c.no7 clk gnd n.c.n.c. n.c. n.c. n.c. n.c. n.c. n.c. dout din n.c.n.c. n.c. n.c. n.c. com8 n.c.no8 n.c. le com15 n.c.n.c. n.c. no9 n.c. com9 n.c. n.c. clr n.c. com14 n.c. no12 n.c. com10 n.c. no10 v dd n.c. no15 n.c. com13 n.c. no13 n.c. com11 n.c. n.c.n.c. n.c. no14 n.c. com12 n.c. no11 n.c.n.c. 0.31 mm 0.5 mm 0.5 mm wlp (5.81mm x 5.43mm) max14803a top view (bumps on bottom) chip information process: bicmos pin configurations (continued) package type package code outline no. land pattern no. 48 tqfp c48+6 21-0054 90-0093 110 wlp w1105b5+1 21-0494 refer to application note 1891 package information for the latest package outline information and land patterns (foot-prints), go to www.maximintegrated.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. downloaded from: http:///
maxim integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim integrated product. no circuit patent licenses are implied. maxim integrated reserves the right to change the circuitry and specifications without notice at any time. the parametric values (min and max limits) shown in the electrical characteristics table are guaranteed. other parametric values quoted in this data sheet are provided for guidance. 20 ________________________________ maxim integrated 160 rio robles, san jose, ca 95134 usa 1-408-601-1000 2013 maxim integrated products, inc. maxim integrated and the maxim integrated logo are trademarks of maxim integrated products, inc. max14802/max14803/max14803a low-charge injection, 16-channel, high-voltage analog switches revision history revision number revision date description pages changed 0 4/09 initial release 1 9/09 corrected two specifications in the absolute maximum ratings section, changed the minimum of the peak-to-peak analog signal range to ?ither v nn + 200v or (v pp ?10v) 2, 9 2 11/10 deleted the max14800/max14801 from the entire data sheet and added themax14803a; added the wlp part to the ordering information , pin configurations , pin descriptions , and package information sections 1?9 3 8/11 added extended temperature information; added max14802ecm+ to data sheet 1 4 6/13 updated absolute maximum ratings and operating supply voltages 1, 2 downloaded from: http:///

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