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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. 16-channel, linear, high-voltage analog switches 19-5786; rev 2; 1/12 ordering information/selector guide general description the MAX4968/MAX4968a are 16-channel, high-linearity, high-voltage, bidirectional spst analog switches with 18 i (typ) on-resistance. the devices are ideal for use in applications requiring high-voltage switching controlled by a low-voltage control signal, such as ultrasound imag - ing and printers. the MAX4968a provides integrated 40k i (typ) bleed resistors on each switch terminal to discharge capacitive loads. using hvcmos technol - ogy, these switches combine high-voltage bilateral mos switches and low-power cmos logic to provide efficient control of high-voltage analog signals. the MAX4968 is pin-to-pin compatible with the max14802 and supertex hv2601. the MAX4968a is pin-to-pin compatible with the max14803 and supertex hv2701. the only difference is the v pp positive supply voltage level. the MAX4968/MAX4968a require a low +10v (typ) voltage (v pp ), whereas the max14802/max14803 and hv2601/hv2701 require a high +100v supply voltage. in a typical ultrasound application, these devices do not require a dedicated high-voltage supply that implies a sig - nificant simplification of system requirement. the negative voltage supply can be shared with the transmitter, and the positive voltage supply is typically +10v. the devices are available in the 48-pin lqfp package and are specified over the -40 n c to +85 n c extended temperature range. applications medical ultrasound imaging nondestructive testing (ndt)/industrial ultrasound imaging printers features s latch free soi hvcmos process technology for high performance and robustness s no dedicated high-voltage supplies required s r on flatness guaranteed in entire input range s low-power dissipation s low-charge injection and voltage spike s 25mhz serial interface (+2.5v to +5v) s 2nd harmonic distortion < -45db at 2mhz 90v pulse s low parasitic capacitance guarantees high bandwidth s dc to 30mhz small-signal analog bandwidth (c load = 200pf) s 500khz to 20mhz high-signal analog bandwidth (c load = 200pf) s extended input range up to 210v p-p s -80db (typ) off-isolation at 5mhz (50 i ) s shunt (bleed) resistors on outputs (MAX4968a only) s daisy-chainable serial interface + denotes a lead(pb)-free/rohs-compliant package. part temp range switch channels bleed resistor pin-package MAX4968 ecm+ -40 c to +85 c 16 no 48 lqfp MAX4968a ecm+ -40 c to +85 c 16 yes 48 lqfp MAX4968/MAX4968a
16-channel, linear, high-voltage analog switches 2 stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. (all voltages referenced to gnd.) v dd logic supply voltage range .......................... -0. 3 v to +6v v pp - v nn supply voltage ................................................ +212v v pp supply voltage range ................................... -0. 3 v to +12v v nn negative supply voltage ............................................ -200v logic input voltage range (clk, din, clr) ......... -0. 3 v to +6v logic input voltage range ( le ) ........................ -0.3v to a minimum of (v pp + 0.3v) or 6v logic output voltage range (dout) ...... -0. 3 v to (v dd + 0.3v) analog signal range (sw_) ........ (v nn - 0.3v) to (v nn + 220v) c ontinuous power dissipation (t a = +70 n c) lqfp (derate 22.7mw/ n c above +70 n c) ................. 1818mw operating temperature range .......................... -40 n c to +85 n c storage temperature range ............................ -65 n c to +150 n c junction temperature ................................................... +150 n c lead temperature (soldering, 10s) ................................ +300 n c soldering temperature (reflow) ...................................... +260 n c electrical characteristics (v dd = +2.37v to +5.5v, v pp = +10v q 5%, v nn = 0 to -200v, t a = t min to t max , unless otherwise noted. typical values are v dd = +3.3v, v nn = -100v, v pp = +10v at t a = +25 n c.) (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 . package thermal characteristics ( note 1) lqfp junction-to-ambient thermal resistance ( q ja ) .......... 44 c/w junction-to-case thermal resistance ( q jc ) ............... 10 c/w parameter symbol conditions min typ max units power supplies v dd logic supply voltage v dd +2.37 +5.5 v v nn supply voltage v nn -200 0 v v pp supply voltage v pp +9.5 +10 +10.5 v v dd static current i dds 4 f a v dd dynamic current i dd v dd = +5v, f clk = 5mhz, f din = 2.5mhz 200 f a v nn static current i nns all switches remain on or off, sw_ = gnd 10 25 f a v nn supply dynamic current (all channels switching simultaneously) i nn v pp = +10v, v nn = -100v, f turn_on/off = 50khz, sw_ = gnd 3.3 5 ma v pp supply static current i pps all switches remain on or off, sw_ = gnd 12 25 f a v pp supply dynamic current (all channels switching simultaneously) i pp v pp = +10v, v nn = -100v, f turn_on/off = 50khz, sw_ = gnd 4 6 ma switch characteristics analog dynamic signal range v sw_ ac operation only, f > 500khz v nn v nn + 210 v small-signal on-resistance r ons v pp = +10v, v nn = -100v, v sw_ = 0v, i sw_ = 5ma 18 34 i MAX4968/MAX4968a
16-channel, linear, high-voltage analog switches 3 electrical characteristics (continued) (v dd = +2.37v to +5.5v, v pp = +10v q 5%, v nn = 0 to -200v, t a = t min to t max , unless otherwise noted. typical values are v dd = +3.3v, v nn = -100v, v pp = +10v at t a = +25 n c.) (note 2) parameter symbol conditions min typ max units small-signal on-resistance matching d r ons v pp = +10v, v nn = -100v, i sw_ = 5ma 3 % small-signal on-resistance flatness r onf ac measured, f sw_ = 0.5mhz, v sw_ = 80v p-p , r load = 50 i , v pp = +10v, v nn = -100v 2 % switch output bleed resistor r int MAX4968a only 30 40 50 k i switch-off leakage i sw_(off) v sw_ = 0v, switch off (MAX4968 only) 0 1 f a switch-off dc offset no load (MAX4968a only) -15 0 +15 mv switch-on dc offset no load (MAX4968a only) -15 0 +15 mv switch output isolation diode current 300ns pulse width, 2% duty cycle 3.0 a switch dynamic characterisitics turn-on time t on v sw_a = +1v, r l = 100 i , v nn = -100v, from enable to v sw_b = +0.9v 2 5 f s turn-off time t off v sw_a = +1v, r l = 100 i , v nn = -100v, from disable to v sw_b = +0.9v 2 3.5 f s maximum v sw_ slew rate dv/dt c l = 100pf 20 v/ns off-isolation v iso f = 2mhz, r l = 50 i -76 db crosstalk v ct f = 5mhz, r l = 50 i -76 db sw_ off-capacitance c sw_(off) f = 1mhz, small signal close to zero 9 pf sw_ on-capacitance c sw_ (on) f = 1mhz, small signal close to zero 13 pf output voltage spike v spk r l = 50 i 70 mv large-signal analog bandwidth (-3db) f bw_l c load = 200pf, 60v amplitude sinusoidal burst, 1% duty cycle 30 mhz small-signal analog bandwidth (-3db) f bw_s c load = 200pf, 100mv amplitude sinusoidal 50 mhz charge injection q v pp = +10v, v nn = -100v, figure 1 150 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 = 1 ma 0.4 v logic-output high voltage v oh i source = 1ma v dd - 0.4 v logic-input capacitance c in 5 pf logic-input leakage i in -1 +1 f a MAX4968/MAX4968a
16-channel, linear, high-voltage analog switches 4 electrical characteristics (continued) (v dd = +2.37v to +5.5v, v pp = +10v q 5%, v nn = 0 to -200v, t a = t min to t max , unless otherwise noted. typical values are v dd = +3.3v, v nn = -100v, v pp = +10v at t a = +25 n c.) (note 2) note 2: all devices are 100% tested at t a = +85 n c. limits over the operating temperature range are guaranteed by design. parameter symbol conditions min typ max units timing characteristics (figure 2) clk frequency f clk 25 mhz din to clk setup time t ds 8 ns din to clk hold time t dh 3 ns clk to le setup time t cs 8 ns le low pulse width t wl 12 ns clr high pulse width t wc 12 ns clk rise and fall times t r , t f 50 ns clk to dout delay t do v dd = +5v q 10%, c dout = 15pf 28 ns v dd = +2.5v q 5%, c dout = 15pf 45 MAX4968/MAX4968a
16-channel, linear, high-voltage analog switches 5 test circuits/timing diagrams figure 1. test circuits sw_b v dd 5v a i leak sw_a v pp v pp a i leak MAX4968 MAX4968a gnd switch-off leakage v nn v nn sw_b v out v dd 5v sw_a v pp v pp MAX4968 MAX4968a gnd dc offset on/off v nn v nn r l 100k t on /t off test circuit sw_b v out v pp - 10v v dd 5v sw_a v pp v pp MAX4968 MAX4968a gnd v nn v nn r l 100k sw_b v in = 10v p-p at 5mhz v out v dd 5v sw_a v pp v pp MAX4968 MAX4968a gnd off-isolation v nn v nn r l v iso = 20log v out v in isolation diode current v nn sw_b v out v dd 5v sw_a i id v pp v pp MAX4968 MAX4968a gnd v nn v nn sw_b v in = 10v p-p at 5mhz v dd 5v sw_a v pp v pp MAX4968 MAX4968a gnd crosstalk v nn v nn 50 sw_b sw_a 50 v ct = 20log v out v in q = 1000pf x v out charge injection sw_b v out v out 100pf v com_ v dd 5v sw_a v pp v pp MAX4968 MAX4968a gnd v nn v nn output voltage spike sw_b v out +v spk -v spk v dd 5v sw_a v pp v pp MAX4968 MAX4968a gnd v nn v nn 50 r l 1k sw_b 200pf 10mv p-p v out v in v dd 5v sw_a v pp v pp MAX4968 MAX4968a gnd small-signal bandwidth measurement v nn v nn sw_b 200pf 60v p-p burst (1% duty cycle) v out v in v dd 5v sw_a v pp v pp MAX4968 MAX4968a gnd large-signal bandwidth measurement v nn v nn MAX4968/MAX4968a
16-channel, linear, high-voltage analog switches 6 figure 2. serial interface timing figure 3. latch-enable interface timing test circuits/timing diagrams (continued) 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 din data from previous data byte power-up default: d[15:0] = 0 d15 d15 d14 d13 d14 d13 d1 d0 d1 d0 d15 lsb msb le clk dout MAX4968/MAX4968a
16-channel, linear, high-voltage analog switches 7 typical operating characteristics (v dd = +3v, v pp = +10v, v nn = -100v, r l = 100 i , c l = 100pf, t a = +25 n c, unless otherwise noted.) turn-on/turn-off time vs.temperature MAX4968 toc01 temperature (c) turn-on/turn-off time (s) 60 35 10 -15 1 2 3 4 5 0 -40 85 t on t off off-isolation vs. frequency MAX4968 toc02 frequency (mhz) off-isolation (db) 10 1 0.1 0.01 -80 -60 -40 -20 0 -100 0.001 100 t a = -40c t a = +25c t a = +85c switch-off leakage current vs.temperature MAX4968 toc03 temperature (c) switch-off leakage current (a) 60 35 10 -15 0.2 0.4 0.6 0.8 1.0 0 -40 85 i sw_(0ff) high-voltage supply current vs. output switch frequency MAX4968 toc07 output switch frequency (khz) supply current (ma) 40 30 20 10 2 4 6 8 10 0 08 5 all switches switching i pp (t a = +85c) i pp (t a = +25c) i pp (t a = -40c) i nn (t a = +85c) i nn (t a = -40c) i nn (t a = +25c) logic power-supply current vs. serial-clock frequency MAX4968 toc06 serial-clock frequency(mhz) logic power-supply current (a) 18 16 14 12 10 8 6 4 2 100 200 300 400 500 0 02 0 t a = +85c t a = +25c t a = +-40c positive and negative power-supply current vs. temperature MAX4968 toc05 temperature (c) supply current (a) 60 35 10 -15 10 12 14 16 18 20 8 -40 85 v pp = +10v v nn = -100v v nn = -70v v nn = -40v logic power-supply current vs. supply voltage MAX4968 toc04 v dd supply voltage (v) logic power-supply current (a) 5.1 4.7 4.3 3.9 3.5 3.1 2.7 0.5 1.0 1.5 2.0 2.5 3.0 0 2.3 5.5 t a = -40c t a = +25c t a = +85c MAX4968/MAX4968a
16-channel, linear, high-voltage analog switches 8 pin configuration pin description top view lqfp (7mm 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 34 5 67 89 10 11 12 sw5a sw5b sw6a sw6b sw7a sw7b sw8a sw8b sw9a sw9b sw10a sw10b sw0a sw0b sw1a sw1b sw2a sw2b sw3a sw3b sw4a sw4b n.c. n.c. 36 35 34 33 32 31 30 29 28 27 26 25 sw15b sw15a sw14b sw14a sw13b sw13a sw12b sw12a sw11b sw11a n.c. n.c. MAX4968 MAX4968a pin name function 1, 2, 14, 16, 24, 35, 36 n.c. no connection. not connected internally. 3 sw4b analog switch 4terminal 4 sw4a analog switch 4terminal 5 sw3b analog switch 3terminal 6 sw3a analog switch 3terminal 7 sw2b analog switch 2terminal 8 sw2a analog switch 2terminal 9 sw1b analog switch 1 terminal 10 sw1a analog switch 1terminal 11 sw0b analog switch 0terminal 12 sw0a analog switch 0terminal 13 v nn negative high-voltage supply. bypass v nn to gnd with a 0.1 f f or greater ceramic capacitor. pin name function 15 v pp positive voltage supply. bypass v pp to gnd with a 0.1 f f or greater ceramic capacitor. 17 gnd ground 18 v dd logic supply voltage. bypass v dd to gnd with a 0.1 f f or greater ceramic capacitor. 19 din serial-data input 20 clk serial-clock input 21 le active-low latch-enable input 22 clr latch-clear input 23 dout serial-data output 25 sw15b analog switch 15terminal 26 sw15a analog switch 15terminal 27 sw14b analog switch 14terminal MAX4968/MAX4968a
16-channel, linear, high-voltage analog switches 9 detailed description the MAX4968/MAX4968a are 16-channel, high-linearity, high-voltage, bidirectional spst analog switches with 18 i (typ) on-resistance. the devices are ideal for use in applications requiring high-voltage switching controlled by a low-voltage control signal, such as ultrasound imag - ing and printers. the MAX4968a provides integrated 40k i (typ) bleed resistors on each switch terminal to discharge capacitive loads. using hvcmos technol - ogy, these switches combine high-voltage, bilateral mos switches and low-power cmos logic to provide efficient control of high-voltage analog signals. the MAX4968 is pin-to-pin compatible with the max14802 and supertex hv2601. the MAX4968a is pin-to-pin compatible with the max14803 and supertex hv2701. the only difference is the v pp positive supply voltage level. the MAX4968/MAX4968a require a low +10v (typ) voltage (v pp ), whereas the max14802/max14803 and hv2601/hv2701 require a high +100v supply voltage. in typical ultrasound applications, these devices do not require dedicated high-voltage supply, which implies a significant simplification of system requirement. the negative voltage supply can be shared with the transmit - ter and the positive voltage supply is typically +10v. analog switch the devices can transmit analog signals up to 210v p-p , with an analog signal range from v nn to v nn + 210v. before starting the high-voltage burst transmission (v p-p > +20v), the input voltage is required to be close to gnd to allow a proper settling of the pass fet. the high- voltage burst frequency must be greater than 500khz. extremely long high-voltage bursts (v p-p > +10v) with duty cycle greater than 20% could result in signal deg - radation, especially for unipolar transmission. in general, this applies for burst transmission with a nonzero dc content. low-voltage signal (v p-p < 10v) continuous-wave bipo - lar transmission is supported for frequencies greater than 500khz. for very small signals, such as the small echoes in typical ultrasound imaging systems (v p-p < 10v), the devices are not limited to a low-frequency bandwidth and can transmit dc signals. voltage supplies the devices operate with a high-voltage supply v nn from -200v to 0, v pp supply of +10v (typ), and a logic supply v dd (+2.37v to +5.5v). pin description (continued) pin name function 28 sw14a analog switch 14terminal 29 sw13b analog switch 13terminal 30 sw13a analog switch 13terminal 31 sw12b analog switch 12terminal 32 sw12a analog switch 12terminal 33 sw11b analog switch 11terminal 34 sw11a analog switch 11terminal 37 sw10b analog switch 10terminal 38 sw10a analog switch 10terminal 39 sw9b analog switch 9terminal pin name function 40 sw9a analog switch 9terminal 41 sw8b analog switch 8terminal 42 sw8a analog switch 8terminal 43 sw7b analog switch 7terminal 44 sw7a analog switch 7terminal 45 sw6b analog switch 6terminal 46 sw6a analog switch 6terminal 47 sw5b analog switch 5terminal 48 sw5a analog switch 5terminal MAX4968/MAX4968a
16-channel, linear, high-voltage analog switches 10 bleed resistors (MAX4968a) the MAX4968a features integrated 40k i (typ) bleed resistors to discharge capacitive loads such as piezo - electric transducers. each analog switch terminal is con - nected to gnd with a bleed resistor. serial interface the MAX4968/MAX4968a are controlled by a serial interface with a 16-bit serial shift register and transparent latch. each of the 16 data bits controls a single analog switch (see 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 (see figures 2 and 3). latch enable ( le ) drive le logic-low to change the contents of the latch and update the state of the high-voltage switches (figure 3). drive le logic-high to freeze the contents of the latch and prevent changes to the switch states. to reduce noise due to clock feedthrough, drive le logic- high while data is clocked into the shift register. after the 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 MAX4968/MAX4968a feature a latch-clear 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 MAX4968/MAX4968a feature a power-on-reset cir - cuit 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. table 1. serial interface programming (notes 1C6) data bits control bits function d0 (lsb) d1 d2 d3 d4 d5 d6 d7 le clr sw0 sw1 sw2 sw3 sw4 sw5 sw6 sw7 l l l off h l l on l l l off h l l on l l l off h l l on l l l off h l l on l l l off h l l on l l l off h l l on l l l off h l l on l l l off h l l on x x x x x x x x h l hold previous state x x x x x x x x x h off off off off off off off off MAX4968/MAX4968a
16-channel, linear, high-voltage analog switches 11 table 1. serial interface programming (notes 1C6) (continued) note 1: the 16 switches operate independently. note 2: serial data is clocked in on the rising edge of clk. note 3: 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 4: dout is high when switch 15 is on. note 5: shift register clocking has no effect on the switch states if le is high. note 6: the clr input overrides all other inputs. applications information in typical ultrasound applications, the MAX4968/MAX4968a do not require dedicated high-voltage supplies; the nega - tive voltage supply can be shared with the transmitter and the positive voltage supply is typically +10v. see figures 5, 6, and 7 for medical ultrasound applications. logic levels the MAX4968/MAX4968a digital interface inputs clk, din, le , and clr operate on the v dd logic supply voltage. daisy-chaining multiple devices digital output dout is provided to allow the connec - tion of multiple MAX4968/MAX4968a devices by daisy- chaining (figure 4). 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 to open all the switches simultaneously. additional shift registers can be included anywhere in series with the MAX4968/MAX4968a daisy-chain. supply sequencing and bypassing the MAX4968/MAX4968a do not require special sequencing of the v dd , v pp, and v nn supply voltages. bypass v dd , v pp , and v nn to gnd with a 0.1 f f ceramic capacitor as close as possible to the device. note: keep le low during power-up. data bits control bits function d8 d9 d10 d11 d12 d13 d14 d15 (msb) le clr sw8 sw9 sw10 sw11 sw12 sw13 sw14 sw15 l l l off h l l on l l l off h l l on l l l off h l l on l l l off h l l on l l l off h l l on l l l off h l l on l l l off h l l on l l l off h l l on x x x x x x x x h l hold previous state x x x x x x x x x h off off off off off off off off MAX4968/MAX4968a
16-channel, linear, high-voltage analog switches 12 application diagrams figure 4. interfacing multiple devices by daisy-chaining clk din clk le clr u10 u11 u1n u20 u21 u2n dout din1 le clr din2 din clk le clr dout din clk le clr dout din clk le clr dout din clk le clr dout din clk le clr dout MAX4968 MAX4968a MAX4968 MAX4968a MAX4968 MAX4968a MAX4968 MAX4968a MAX4968 MAX4968a MAX4968 MAX4968a MAX4968/MAX4968a
16-channel, linear, high-voltage analog switches 13 application diagrams (continued) figure 5. medical ultrasound applicationhigh-voltage analog switches in probe 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 high-voltage 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 MAX4968/MAX4968a
16-channel, linear, high-voltage analog switches 14 application diagrams (continued) figure 6. medical ultrasound applicationhigh-voltage analog switches in mainframe probe a high-voltage 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 high-voltage 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 c probe d MAX4968/MAX4968a
16-channel, linear, high-voltage analog switches 15 application diagrams (continued) figure 7. medical ultrasound applicationmultiple transmit and isolation per receiver channel probe a high-voltage transmit 2 to 4 per channel high-voltage isolation 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 MAX4968/MAX4968a
16-channel, linear, high-voltage analog switches 16 functional diagram chip information process: bicmos 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. 16-bit shift register latch v dd v pp *bleed resistors available on the MAX4968a only. gnd v nn level shifter clr sw0b sw0a v nn * * v nn din clk dout le latch level shifter sw15b sw15a v nn * * v nn MAX4968 MAX4968a package type package code outline no. land pattern no. 48 lqfp c48+6 21-0054 90-0093 MAX4968/MAX4968a
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. maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 17 ? 2012 maxim integrated products maxim is a registered trademark of maxim integrated products, inc. 16-channel, linear, high-voltage analog switches revision history revision number revision date description pages changed 0 3/11 initial release 1 5/11 removed future product asterisk from MAX4968 in ordering information , corrected off-isolation specification in electrical characteristics 1, 3 2 1/12 updated v nn specifications in absolute maximum ratings and electrical characteristics supply voltage and v nn static current specifications 2, 3, 4, 9 MAX4968/MAX4968a

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