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general description the single max9914/max9915 and dual max9916/ max9917 operational amplifiers feature maximized ratio of gain bandwidth to supply current and are ideal for battery-powered applications such as portable instru - mentation, portable medical equipment, and wireless handsets. these cmos op amps feature an ultra-low 1pa input bias current, rail-to-rail inputs and outputs, low 20a supply current, and operate from a single 1.8v to 5.5v supply. for additional power conservation, the max9915/max9917 feature a low-power shutdown mode that reduces supply current to 1na, and puts the amplifier outputs in a high-impedance state. these devices are unity-gain stable with a 1mhz gain-bandwidth product. the max9914 and max9915 are available in 5-pin and 6-pin sc70 packages, respectively. the max9916 is avail - able in an 8-pin sot23 package, and the max9917 in a 10-pin max ? package. all devices are specified over the -40c to +85c extended operating temperature range. applications portable medical devices portable test equipment rf tags laptops data-acquisition equipment features high 1mhz gbw ultra-low 20a supply current single 1.8v to 5.5v supply voltage range ultra-low 1pa input bias current rail-to-rail input and output voltage ranges low 200v input offset voltage low 0.001a shutdown current high-impedance output during shutdown (max9915/max9917) unity-gain stable available in tiny sc70, sot23, and max packages max is a registered trademark of maxim integrated products, inc. 19-3407; rev 3; 11/14 +denotes a lead(pb)-free/rohs-compliant package. t = tape and reel. part temp range pin- package top mark max9914 exk+t -40c to +85c 5 sc70 agb max9914exk-t -40c to +85c 5 sc70 agb max9915 ext+t -40c to +85c 6 sc70 acb max9915ext-t -40c to +85c 6 sc70 acb max9916 eka+t -40c to +85c 8 sot23 aejz MAX9916EKA-t -40c to +85c 8 sot23 aejz max9917 eub -40c to +85c 10 max max9917eub+ -40c to +85c 10 max part amplifiers per package shutdown mode package max9914exk+t 1 no 5 sc70 max9915ext+t 1 yes 6 sc70 MAX9916EKA+t 2 no 8 sot23 max9917eub+ 2 yes 10 max r147k ? r210k ? r g * *optional input resistor r g , is for gain adjustment micropower, two-op-amp instrumentation amplifier r310k ? r447k ? gain = 1 + r4r2 for r1 = r4 and r2 = r3 gain = (r1 + r2 + r3 + r4) (r2 + r3) max9916 v ss v dd 3v in- inb+ ina+ outa out ina- outb inb- in+ max9914Cmax9917 1mhz, 20a, rail-to-rail i/o op amps with shutdown typical operating circuit ordering informationselector guide downloaded from: http:///
power-supply voltage (v dd to v ss ) .................... -0.3v to +6.0v in_+, in_-, out_, shdn_ ............ (v ss - 0.3v) to (v dd + 0.3v) current into in_+, in_- ..................................................... 20ma output short-circuit duration to v dd or v ss ............ continuous continuous power dissipation (t a = +70c) 5-pin sc70 (derate 3.1mw/c above +70c) ............. 247mw 6-pin sc70 (derate 3.1mw/c above +70c) ............. 245mw 8-pin sot23 (derate 5.1mw/c above +70c) .......... 408mw 10-pin max (derate 5.6mw/c above +70c) .......... 444mw operating temperature range ........................... -40c to +85c junction temperature ...................................................... +150c storage temperature range ............................ -65c to +150c lead temperature (soldering, 10s) ................................. +300c soldering temperature (reflow) ....................................... +260c (v dd = 1.8v to 5.5v, v ss = 0v, v cm = 0v, v out = v dd /2, r l = connected to v dd /2, shdn _ = v dd , t a = +25c , unless otherwise noted.) (note 1) parameter symbol conditions min typ max units supply voltage range v dd guaranteed by psrr test 1.8 5.5 v supply current i dd max9914/max9915 v dd = 1.8v 20 a v dd = 5.5v 20 25 max9916/max9917 v dd = 1.8v 40 v dd = 5.5v 40 50 shutdown supply current i dd( shdn _) shdn _ = gnd, max9915/max9917 0.001 0.5 a input offset voltage v os 0.2 1 mv input-offset-voltage matching max9916/max9917 250 v input bias current i b (note 2) 1 10 pa input offset current i os (note 2) 1 10 pa input resistance r in common mode 1 g? differential mode, -1mv < v in < +1mv 10 input common-mode range v cm guaranteed by cmrr test v ss - 0.1 v dd + 0.1 v common-mode rejection ratio cmrr -0.1v < v cm < v dd + 0.1v, v dd = 5.5v 70 80 db power-supply rejection ratio psrr 1.8v < v dd < 5.5v 65 85 db open-loop gain a vol 25mv < v out < v dd - 25mv, r l = 100k?, v dd = 5.5v 95 120 db 100mv < v out < v dd - 100mv, rl = 5k?, v dd = 5.5v 95 110 output-voltage-swing high v oh v dd - v out r l = 100k? 2.5 5 mv r l = 5k? 50 70 r l = 1k? 250 output-voltage-swing low v ol v out - v ss r l = 100k? 2.5 5 mv r l = 5k? 50 70 r l = 1k? 250 channel-to-channel isolation ch iso speciied at dc, max9916/max9917 100 db output short-circuit current i out(sc) 15 ma max9914Cmax9917 1mhz, 20a, rail-to-rail i/o op amps with shutdown www.maximintegrated.com maxim integrated 2 absolute maximum ratings stresses beyond those listed under absolute maximum ratings may cause permanent damage to the devi ce. 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. electrical characteristics downloaded from: http:///
(v dd = 1.8v to 5.5v, v ss = 0v, v cm = 0v, v out = v dd /2, r l = connected to v dd /2, shdn _ = v dd , t a = -40c to +85c , unless otherwise noted.) (note 1) (v dd = 1.8v to 5.5v, v ss = 0v, v cm = 0v, v out = v dd /2, r l = connected to v dd /2, shdn _ = v dd , t a = +25c , unless otherwise noted.) (note 1) parameter symbol conditions min typ max units shdn _ logic low v il v dd = 1.8v to 3.6v, max9915/max9917 0.4 v v dd = 3.6v to 5.5v, max9915/max9917 0.8 shdn _ logic high v ih v dd = 1.8v to 3.6v, max9915/max9917 1.4 v v dd = 3.6v to 5.5v, max9915/max9917 2 shdn _ input bias current i il shdn _ = v ss , max9915/max9917 (note 2) 1 na i ih shdn _ = v dd , max9915/max9917 500 output leakage in shutdown i out( shdn _) shdn _ = v ss , v out = 0v to v dd , max9915/max9917 1 500 na gain-bandwidth product 1 mhz phase margin c l = 15pf 45 degrees gain margin c l = 15pf 10 db slew rate 0.5 v/s capacitive-load stability (see the driving capacitive loads section) c load no sustained oscillations a v = 1v/v 30 pf a v = 10v/v 100 r l = 5k?, a v = 1v/v 100 r iso = 1k?, a v = 1v/v 100 input voltage-noise density f = 1khz 160 nv/ hz input current-noise density f = 1khz 0.001 pa/ hz settling time to 0.1%, v out = 2v step, a v = -1v/v 3.5 s delay time to shutdown t sh i dd = 5% of normal operation, v dd = 5.5v, v shdn _ = 5.5v to 0 step 2 s delay time to enable t en v out = 2.7v, v out settles to 0.1%, v dd = 5.5v, v shdn _ = 0 to 5.5v step 10 s power-up time v dd = 0 to 5.5v step 2 s parameter symbol conditions min typ max units supply voltage range v dd guaranteed by psrr test 1.8 5.5 v supply current i dd max9914/max9915 v dd = 5.5v 29 a max9916/max9917 60 shutdown supply current i dd( shdn _) shdn _ = gnd, max9915/max9917 1 a input offset voltage v os 3 mv max9914Cmax9917 1mhz, 20a, rail-to-rail i/o op amps with shutdown www.maximintegrated.com maxim integrated 3 electrical characteristics electrical characteristics (continued) downloaded from: http:///
(v dd = 1.8v to 5.5v, v ss = 0v, v cm = 0v, v out = v dd /2, r l = connected to v dd /2, shdn _ = v dd , t a = -40c to +85c , unless otherwise noted.) (note 1)note 1: specifications are 100% tested at t a = +25c (exceptions noted). all temperature limits are guaranteed by design. note 2: guaranteed by design, not production tested parameter symbol conditions min typ max units input-offset-voltage temperature coeficient (note 2) tc vos 5 v/c input bias current i b 30 pa input offset current i os 20 pa input common-mode range v cm guaranteed by cmrr test v ss - 0.05 v dd + 0.05 v common-mode rejection ratio cmrr -0.05v < v cm < v dd + 0.05v, v dd = 5.5v 60 db power-supply rejection ratio psrr 1.8v < v dd < 5.5v 60 db open-loop gain a vol 25mv < v out < v dd - 25mv, r l = 100k?, v dd = 5.5v 85 db 150mv < v out < v dd - 150mv, r l = 5k?, v dd = 5.5v 85 output-voltage-swing high v oh v dd - v out r l = 100k? 6 mv r l = 5k? 90 output-voltage-swing low v ol v out - v ss r l = 100k? 5 mv r l = 5k? 90 shdn _ logic low v il v dd = 1.8v to 3.6v, max9915/max9917 0.4 v v dd = 3.6v to 5.5v, max9915/max9917 0.8 shdn _ logic high v ih v dd = 1.8v to 3.6v, max9915/max9917 1.4 v v dd = 3.6v to 5.5v, max9915/max9917 2 shdn _ input bias current i il shdn _ = v ss , max9915/max9917 5 na i ih shdn _ = v dd , max9915/max9917 1000 na output leakage in shutdown i out( shdn _) shdn _ = v ss , v out = 0v to v dd , max9915/max9917 1000 na max9914Cmax9917 1mhz, 20a, rail-to-rail i/o op amps with shutdown www.maximintegrated.com maxim integrated 4 electrical characteristics (continued) downloaded from: http:///
(v dd = 3v, v ss = v cm = 0v, r l to v dd /2, t a = +25c, unless otherwise noted.) supply current vs. supply voltage max9914 toc01 v supply (v) i cc (a) 4.8 4.1 3.3 2.6 5 10 15 20 25 30 35 40 45 50 0 1.8 5.5 t a = +25c t a = -40c t a = +85c t a = +25c t a = -40c t a = +85c dual single input offset voltage vs. temperature max9914 toc04 temperature (c) v os (v) 60 35 10 -15 -180 -160 -140 -120 -100 -80 -60 -40 -20 0 -200 -40 85 frequency (hz) psrr (db) 1k 100 10 1 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 -100 0.1 10k power-supply rejection ratio vs. frequency max9914 toc07 shutdown supply current vs. temperature max9914 toc02 temperature (c) shutdown supply current (na) 60 35 10 -15 -4 -2 0 2 4 6 8 10 12 -6 -40 85 input bias current vs. temperature max9914 toc05 temperature (c) i b (pa) 60 35 10 -15 -2 -1 0 1 2 3 4 5 6 7 -3 -40 85 i b + i b - common-mode rejection ratio vs. temperature max9914 toc08 temperature (c) cmrr (db) 60 35 10 -15 20 40 60 80 100 120 140 0 -40 85 input offset voltage vs. input common-mode voltage max9914 toc03 v cm (v) v os (v) 2.5 2.0 0.5 1.0 1.5 -750 -500 -250 0 250 500 750 1000 -1000 0 3.0 t a = +25c t a = -40c t a = +85c input bias current vs. input common-mode voltage max9914 toc06 v cm (v) i b (pa) 3.0 2.5 1.5 2.0 0.5 1.0 0 -4 -3 -2 -1 0 1 2 3 4 5 -5 -0.5 3.5 frequency (hz) cmrr (db) 10k 1k 100 10 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 -100 1 100k common-mode rejection ratio vs. frequency max9914 toc09 max9914Cmax9917 1mhz, 20a, rail-to-rail i/o op amps with shutdown maxim integrated 5 www.maximintegrated.com typical operating characteristics downloaded from: http:///
(v dd = 3v, v ss = v cm = 0v, r l to v dd /2, t a = +25c, unless otherwise noted.) slew rate vs. supply voltage max9914 toc10 supply voltage (v) slew rate (v/s) 4.8 3.8 2.8 -1.0 -0.5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 -1.5 1.8 5.5 open-loop gain vs. temperature (r l to v ss ) max9914 toc13 temperature (c) a vol (db) 60 35 10 -15 20 40 60 80 100 120 140 0 -40 85 r l = 1k ? r l = 5k ? r l = 100k ? gain and phase vs. frequency (r l = 5k ? , c load = 100pf) max9914 toc16 frequency (hz) gain (db) phase (degrees) 1m 100k 1k 10k 100 10 -100 -80 -60 -40 -20 0 20 40 60 80 100 -120 -225 -180 -135 -90 -45 0 45 90 135 180 225-270 1 10m gain a v = 1000v/v phase output-swing high vs. temperature max9914 toc11 temperature (c) output voltage swing (mv) 60 35 10 -15 10 100 1000 1 -40 85 r l = 1k ? r l = 5k ? r l = 100k ? r l to v ss v oh = v dd - v out 20 40 60 80 120100 140 160 0 open-loop gain vs. temperature (r l to v dd ) max9914 toc14 temperature (c) a vol (db) 60 35 10 -15 -40 85 r l = 1k ? r l = 5k ? r l = 100k ? crosstalk vs. frequency max9914 toc17 frequency (hz) crosstalk (db) 10k 1k 100 -100 -80 -60 -40 -20 0 -120 10 100k max9916/max9917 output-swing low vs. temperature max9914 toc12 temperature (c) output voltage swing (mv) 60 35 10 -15 10 100 1000 1 -40 85 r l = 1k ? r l = 5k ? r l = 100k ? r l to v dd v ol = v out - v ss gain and phase vs. frequency (r l = , c load = 15pf) max9914 toc15 frequency (hz) gain (db) phase (degrees) 1m 100k 1k 10k 100 10 -100 -80 -60 -40 -20 0 20 40 60 80 100 -120 -225 -180 -135 -90 -45 0 45 90 135 180 225-270 1 10m gain a v = 1000v/v phase total harmonic distortion plus noise vs. frequency max9914 toc18 frequency (hz) thd+n (db) 1k 100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 -100 10 10k v out = 2v p-p max9914Cmax9917 1mhz, 20a, rail-to-rail i/o op amps with shutdown maxim integrated 6 www.maximintegrated.com typical operating characteristics (continued) downloaded from: http:///
(v dd = 3v, v ss = v cm = 0v, r l to v dd /2, t a = +25c, unless otherwise noted.) voltage-noise density vs. frequency max9914 toc19 frequency (hz) voltage noise (nv/ hz) 10 100 1k 10k 1000 10,000 100 1 100k shutdown response max9914 toc22 20s/div output shdn = 3v 3v0v 0v 1.5v in+ = v dd / 2 a v = 1v/v small-signal pulse response (c load = 15pf) max9914 toc25 1s/div output 50mv/div in+ 50mv/div a v = 1v/v small-signal pulse response (c load = 100pf) max9914 toc26 5s/div output 50mv/div in+ 5mv/div a v = 10v/v resistor isolationvs. capacitive load max9914 toc20 c load (pf) r iso ( ? ) 1000 100 500 1000 1500 2000 2500 3000 0 10 10,000 a v = 1v/v for a v = 10v/v no r iso needed small-signal gain vs. frequency max9914 toc23 frequency (hz) gain (db) 1m 100k 10k -8 -6 -4 -2 0 2 4 6 8 10 -10 1k 10m a v = 1v/v v out = 100mv p-p c load = 15pf power-up settling time max9914 toc21 1s/div output 500mv/div v dd 1v/div in+ = v dd / 2 a v = 1v/v 100 10 -3 -2 -1 0 1 2 3 4 -4 1 1000 large-signal gain vs. frequency max9914 toc24 frequency (khz) gain (db) a v = 1v/v v out = 2v p-p c load = 15pf max9914Cmax9917 1mhz, 20a, rail-to-rail i/o op amps with shutdown maxim integrated 7 www.maximintegrated.com typical operating characteristics (continued) downloaded from: http:///
(v dd = 3v, v ss = v cm = 0v, r l to v dd /2, t a = +25c, unless otherwise noted.) output waveform without r iso (c load = 47pf) max9914 toc31 5s/div output 50mv/div in+ 50mv/div a v = 1v/v percent overshoot vs. capacitive load max9914 toc29 c load (pf) overshoot (%) 80 60 40 20 2 3 4 5 6 71 0 100 r l = 1m ? r l = 100k ? r l = 10k ? large-signal pulse response (c load = 15pf) max9914 toc27 5s/div output 1v/div in+ 1v/div a v = 1v/v output waveform with r iso (c load = 47pf, r iso = 2.3k ? ) max9914 toc30 5s/div output 50mv/div input 50mv/div a v = 1v/v large-signal pulse response (c load = 100pf) max9914 toc28 5s/div output 1v/div in+ 100mv/div a v = 10v/v max9914Cmax9917 1mhz, 20a, rail-to-rail i/o op amps with shutdown maxim integrated 8 www.maximintegrated.com typical operating characteristics (continued) downloaded from: http:///
detailed description featuring a maximized ratio of gain bandwidth to supply current, low operating supply voltage, low input bias cur - rent, and rail-to-rail inputs and outputs, the max9914C max9917 are an excellent choice for precision or gen - eral-purpose low-current, low-voltage, battery-powered applications. these cmos devices consume an ultra-low 20a (typ) supply current and a 200v (typ) offset volt - age. for additional power conservation, the max9914/ max9917 feature a lowpower shutdown mode that reduces supply current to 1na (typ), and puts the ampli - fiers output in a highimpedance state. these devices are unity-gain stable with a 1mhz gain-bandwidth product driving capacitive loads up to 30pf. the capacitive load can be increased to 100pf when the amplifier is config - ured for a 10v/v gain. rail-to-rail inputs and outputs the max9914Cmax9917 amplifiers all have a parallel - connected n- and p-channel differential input stage that allows an input common-mode voltage range that extends 100mv beyond the positive and negative supply rails, with excellent common-mode rejection. the max9914Cmax9917 are capable of driving the out - put to within 5mv of both supply rails with a 100k load. these devices can drive a 5k load with swings to within 60mv of the rails. figure 1 shows no clipping at the output voltage swing of the max9914Cmax9917 configured as a unity-gain buffer powered from a single 3v supply. low input bias current the max9914Cmax9917 feature ultra-low 1pa (typ) input bias current. the variation in the input bias current is minimal with changes in the input voltage due to very high input impedance (in the order of 1g). applications information driving capacitive loads the max9914Cmax9917 amplifiers are unity-gain stable for loads up to 30pf. however, the capacitive load can be increased to 100pf when the amplifier is configured for a minimum gain of 10v/v. applications that require greater capacitive drive capabil - ity should use an isolation resistor between the output and the capacitive load (figure 2). also, in unity-gain applica - tions with relatively small r l (about 5k), the capacitive load can be increased up to 100pf. pin name function max9914 max9915 max9916 max9917 1 1 in+ noninverting ampliier input 2 2 4 4 v ss negative supply voltage 3 3 in- inverting ampliier input 4 4 out ampliier output 5 6 8 10 v dd positive supply voltage 5 shdn shutdown 1 1 outa ampliier output channel a 2 2 ina- inverting ampliier input channel a 3 3 ina+ noninverting ampliier input channel a 5 shdna shutdown channel a 6 shdnb shutdown channel b 5 7 inb+ noninverting ampliier input channel b 6 8 inb- inverting ampliier input channel b 7 9 outb ampliier output channel b max9914Cmax9917 1mhz, 20a, rail-to-rail i/o op amps with shutdown www.maximintegrated.com maxim integrated 9 pin description downloaded from: http:///
power-supply considerations the max9914Cmax9917 are optimized for single 1.8v to 5.5v supply operation. a high amplifier power-supply rejection ratio of 85db (typ) allows the devices to be powered directly from a battery, simplifying design and extending battery life. power-up settling time the max9914Cmax9917 typically require 2s after pow - er-up. supply settling time depends on the supply voltage, the value of the bypass capacitor, the output imped - ance of the incoming supply, and any lead resistance or inductance between components. op amp settling time depends primarily on the output voltage and is slew-rate limited. figure 3 shows the max991_ in a noninverting voltage follower configuration with the input held at mid - supply. the output settles in approximately 3.5s for v dd = 3v (see the typical operating characteristics for the power-up settling time graph). shutdown mode the max9915 and max9917 feature active-low shutdown inputs. the max9915 and max9917 enter shutdown in 2s (typ) and exit shutdown in 10s (typ). the amplifiers outputs are high impedance in shutdown mode. drive shdn low to enter shutdown. drive shdn high to enable the amplifier. the max9917 dual amplifier features sepa - rate shutdown inputs. shut down both amplifiers for low - est quiescent current. power-supply bypassing and layout bypass v dd with a 0.1f capacitor to ground as close to the pin as possible to minimize noise. good layout techniques optimize performance by decreas - ing the amount of stray capacitance and inductance to the op amps inputs and outputs. minimize stray capacitance and inductance, by placing external components close to the ic. figure 1. rail-to-rail output voltage range figure 3. power-up test configuration figure 2. using a resistor to isolate a capacitive load from the op amp rail-to-rail output voltage range 200s/div 3v0v 3v 0v in_1v/div out_ 1v/div v dd = 3v max9914Cmax9917 r iso c l r l a v = 1v/v r l r l + r iso max991_ 100k ? 100k ? out in- in+ 0v 5.5v v dd v ss max9914Cmax9917 1mhz, 20a, rail-to-rail i/o op amps with shutdown www.maximintegrated.com maxim integrated 10 downloaded from: http:///
package type package code outline no. land pattern no. 5 sc70 x5+1 21-0076 90-0188 6 sc70 x6sn+1 21-0077 90-0189 8 sot23 k8+5 21-0078 90-0176 10 max u10+2 21-0061 90-0330 v dd 8 outb 7 inb- 6 inb+ 5 1 outa ina+ 3 ina- 2 v ss 4 v ss out in- 1 5 v dd in+ max9914 sc70 top view 2 3 4 v ss out in- 1 + + 6 v dd in+ max9915 sc70 2 3 4 shdn 5 shdn max9916 sot23 v dd 10 outb 9 inb- 8 shdnb 6 inb+ 7 1 outa 2 ina- v ss 4 ina+ 3 shdna 5 max9917 max shdna shdnb + + max9914Cmax9917 1mhz, 20a, rail-to-rail i/o op amps with shutdown www.maximintegrated.com maxim integrated 11 pin conigurations package information for the latest package outline information and land patterns (footprints), 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. chip information process: bicmos downloaded from: http:///
revision number revision date description pages changed 0 11/04 initial release 1 10/05 removed future product asterisks from max9916/max9917, edited v ol / v oh speciications in the ec table, removed max9916 8-pin max package. 1, 2, 11 2 6/13 updated electrical characteristics 3, 4 3 11/14 updated absolute maximum ratings and electrical characteristics 2, 3, 4 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 speciications without n otice 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. maxim integrated and the maxim integrated logo are trademarks of maxim integrated products, inc. max9914Cmax9917 1mhz, 20a, rail-to-rail i/o op amps with shutdown ? 2014 maxim integrated products, inc. 12 revision history for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim integrateds website at www.maximintegrated.com. downloaded from: http:///

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