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general description the MAX44265 op amp features a maximized ratio of gain bandwidth (gbw) to supply current and is ideal for battery-powered applications such as handsets, tablets, notebooks, and portable medical equipment. this cmos op amp features an ultra-low input-bias cur- rent of 1pa, rail-to- rail input and output, low supply cur- rent of 4?, and operates from a single 1.8v to 5.5v supply. for additional power conservation, the ic also features a low-power shutdown mode that reduces sup- ply current to 1na and puts the amplifier? outputs in a high-impedance state. this device is unity-gain stable with a 200khz gbw product. it is available in a space-saving, 0.9mm x 1.3mm, 6-bump wlp package and is specified over the -40? to +85? extended operating temperature range. applications cell phones tablet/notebook computers mobile accessories battery-powered devices features ? 200khz gbw ? ultra-low 4 a 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 ?00 v input offset voltage ? low 0.001 a shutdown current ? high-impedance output during shutdown ? unity-gain stable ? available in a tiny, 0.9mm x 1.3mm, 6-bump wlp package MAX44265 rail-to-rail, 200khz op amp with shutdown in a tiny, 6-bump wlp ________________________________________________________________ maxim integrated products 1 19-5709; rev 0; 12/10 for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. evaluation kit available ordering information part temp range pin- package top mark MAX44265ewt+ -40? to +85? 6 wlp +by www.datasheet.co.kr datasheet pdf - http://www..net/
MAX44265 rail-to-rail, 200khz op amp with shutdown in a tiny, 6-bump wlp 2 _______________________________________________________________________________________ absolute maximum ratings stresses beyond those listed under ?bsolute 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. 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 = +70 c) 6-bump wlp (derate 10.5mw/? above +70?).........840mw operating temperature range .......................... -40 c to +85 c junction temperature .....................................................+150 c storage temperature range ............................-65 c to +150 c soldering temperature (reflow) .......................................+260? electrical characteristics (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 = +25? , 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 v dd = 1.8v 4 supply current i dd v dd = 5.5v 4 5.0 ? shutdown supply current i dd ( shdn_ ) shdn_ = gnd 0.001 0.5 ? input offset voltage v os 0.2 1mv input bias current i b (note 2) 1 10 pa input offset current i os (note 2) 1 10 pa common mode 1 input resistance r in differential mode, -1mv < v in < +1mv 10 g ? 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 95 db 25mv < v out < v dd - 25mv, r l = 100k ? , v dd = 5.5v 95 120 open-loop gain a vol 100mv < v out < v dd - 100mv, r l = 5k ? , v dd = 5.5v 95 110 db r l = 100k ? 2.5 5 r l = 5k ? 50 70 output-voltage-swing high v oh v dd - v out r l = 1k ? 250 mv r l = 100k ? 2.5 5 r l = 5k ? 50 70 output-voltage-swing low v ol v out - v ss r l = 1k ? 250 mv output short-circuit current i out(sc) 15 ma www.datasheet.co.kr datasheet pdf - http://www..net/
MAX44265 rail-to-rail, 200khz op amp with shutdown in a tiny, 6-bump wlp _______________________________________________________________________________________ 3 parameter symbol conditions min typ max units v dd = 1.8v to 3.6v 0.4 shdn_ logic low v il v dd = 3.6v to 5.5v 0.8 v v dd = 1.8v to 3.6v 1.4 shdn_ logic high v ih v dd = 3.6v to 5.5v 2 v i il shdn_ = v ss (note 2) 1 shdn_ input bias current i ih shdn_ = v dd 500 na output leakage in shutdown i out ( shdn_ ) shdn_ = v ss , v out = 0v to v dd 1 500 na gain-bandwidth product 200 khz slew rate 0.1 v/? a v = 1v/v 30 a v = 10v/v 250 r l = 5k ? , a v = 1v/v 200 capacitive-load stability (see the driving capacitive loads section) c load no sustained oscillations r iso = 1k ? , a v = 1v/v 100 pf input voltage-noise density f = 1khz 400 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 18 ? delay time to shutdown t sh i dd = 5% of normal operation, v dd = 5.5v, v shdn_ = 5.5v to 0 step 2s 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 30 ? power-up time v dd = 0 to 5.5v step 5 s electrical characteristics (continued) (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 = +25? , unless otherwise noted.) (note 1) electrical characteristics (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 = -40? to +85? , 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 v dd = 5.5v 5.5 ? shutdown supply current i dd ( shdn_ ) shdn_ = gnd 1 a input offset voltage v os 5mv input-offset-voltage temperature coefficient tc vos 5 ?/? www.datasheet.co.kr datasheet pdf - http://www..net/
MAX44265 rail-to-rail, 200khz op amp with shutdown in a tiny, 6-bump wlp 4 _______________________________________________________________________________________ note 1: specifications are 100% tested at t a = +25 c (exceptions noted). all temperature limits are guaranteed by design. note 2: guaranteed by design, not production tested. electrical characteristics (continued) (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 = -40? to +85? , unless otherwise noted.) (note 1) parameter symbol conditions min typ max units 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 59 db 25mv < v out < v dd - 25mv, r l = 100k ? , v dd = 5.5v 85 open-loop gain a vol 150mv < v out < v dd - 150mv, r l = 5k ? , v dd = 5.5v 80 db r l = 100k ? 5 output-voltage-swing high v oh v dd - v out r l = 5k ? 90 mv r l = 100k ? 5 output-voltage-swing low v ol v out - v ss r l = 5k ? 90 mv v dd = 1.8v to 3.6v 0.4 shdn_ logic low v il v dd = 3.6v to 5.5v 0.8 v v dd = 1.8v to 3.6v 1.4 shdn_ logic high v ih v dd = 3.6v to 5.5v 2 v i il shdn_ = v ss 5na shdn_ input-bias current i ih shdn_ = v dd 1000 na output leakage in shutdown i out ( shdn_ ) shdn_ = v ss , v out = 0v to v dd 1000 na www.datasheet.co.kr datasheet pdf - http://www..net/
MAX44265 rail-to-rail, 200khz op amp with shutdown in a tiny, 6-bump wlp _______________________________________________________________________________________ 5 supply current vs. supply voltage MAX44265 toc01 v supply (v) i cc ( a) 5.0 4.2 2.6 3.4 2 3 4 5 7 6 8 9 1 1.8 5.5 t a = -40 c t a = +25 c t a = +85 c shutdown supply current vs. temperature MAX44265 toc02 temperature ( c) shutdown supply current (na) 60 35 10 -15 2 4 6 8 10 12 0 -40 85 input offset voltage vs. input common-mode voltage MAX44265 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 = +85 c t a = -40 c t a = +25 c input offset voltage vs. temperature MAX44265 toc04 temperature ( c) v os ( v) 60 35 10 -15 -300 -250 -200 -150 -100 -50 0 50 100 150 200 -350 -40 85 power-supply rejection ratio vs. frequency MAX44265 toc07 frequency (hz) psrr (db) 1k 100 10 1 -100 -80 -60 -40 -20 0 -120 0.1 10k input bias current vs. temperature MAX44265 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 - input bias current vs. input common-mode voltage MAX44265 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 common-mode rejection ratio vs. temperature MAX44265 toc08 temperature ( c) cmrr (db) 60 35 10 -15 20 40 60 80 100 120 140 0 -40 85 common-mode rejection ratio vs. frequency MAX44265 toc09 frequency (hz) cmrr (db) 10k 1k 100 10 1 100k -90 -80 -70 -60 -50 -40 -30 -20 -10 0 -100 typical operating characteristics (v dd = 3v, v ss = v cm = 0v, r l to v dd /2, t a = +25?, unless otherwise noted.) www.datasheet.co.kr datasheet pdf - http://www..net/
MAX44265 rail-to-rail, 200khz op amp with shutdown in a tiny, 6-bump wlp 6 _______________________________________________________________________________________ slew rate vs. supply voltage MAX44265 toc10 supply voltage (v) slew rate (v/ s) 5.0 4.2 3.4 2.6 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 -0.4 1.8 5.5 output-swing high vs. temperature MAX44265 toc11 temperature ( c) output voltage swing (mv) 60 35 10 -15 10 100 1000 1 -40 85 r l = 1k ? r l = 100k ? r l = 5k ? r l to v ss v oh = v dd - v out output-swing low vs. temperature MAX44265 toc12 temperature ( c) output voltage swing (mv) 60 35 10 -15 10 100 1000 10000 1 -40 85 r l = 1k ? r l = 100k ? r l = 5k ? v ol = v out - v ss r l to v dd open-loop gain vs. temperature (r l to v ss ) MAX44265 toc13 a vol (db) 20 40 60 80 100 120 140 0 temperature ( c) 60 35 10 -15 -40 85 r l = 1k ? r l = 100k ? r l = 5k ? gain and phase vs. frequency (r l = 5k ? , c load = 100pf) 100 -100 MAX44265 toc16 frequency (hz) gain (db) phase (degrees) 100k 10k 10 100 1k -60 -40 -20 0 20 40 60 80 -80 -135 -90 -45 45 0 90 135 180 -180 -225 225 11m gain phase a v = 1000v/v open-loop gain vs. temperature (r l to v dd ) MAX44265 toc14 a vol (db) 20 40 60 80 100 120 140 0 temperature ( c) 60 35 10 -15 -40 85 r l = 1k ? r l = 5k ? r l = 100k ? gain and phase vs. frequency (r l = , c load = 15pf) MAX44265 toc15 frequency (hz) gain (db) phase (degrees) 100k 10k 10 100 1k -60 -40 -20 0 20 40 60 80 -80 -135 -90 -45 0 45 90 135 180 -180 11m gain phase a v = 1000v/v total harmonic distortion plus noise vs. frequency MAX44265 toc17 frequency (hz) thd+n (db) 1k 100 -85 -75 -65 -55 -45 -35 -25 -15 -5 -95 10 10k v out = 2v p-p typical operating characteristics (continued) (v dd = 3v, v ss = v cm = 0v, r l to v dd /2, t a = +25?, unless otherwise noted.) www.datasheet.co.kr datasheet pdf - http://www..net/
MAX44265 rail-to-rail, 200khz op amp with shutdown in a tiny, 6-bump wlp _______________________________________________________________________________________ 7 voltage-noise density vs. frequency MAX44265 toc18 frequency (hz) 10 100 1k 10k 1000 10,000 100 1 100k voltage noise (nv/ hz) resistor isolation vs. capacitive load MAX44265 toc19 c load (pf) r iso ( ? ) 1000 100 1000 2000 3000 4000 5000 6000 7000 8000 0 10 10,000 a v = 1v/v for a v = 10v/v no r iso needed shutdown response 20 s/div output 3v 0v 1.5v 0v MAX44265 toc21 shdn in+ = v dd / 2 a v = 1v/v small-signal pulse response (c load = 15pf) 10 s/div output 50mv/div in+ 50mv/div MAX44265 toc22 a v = 1v/v 100 s/div output 1v/div in+ 100mv/div large-signal pulse response (c load = 100pf) MAX44265 toc25 a v = 10v/v small-signal pulse response (c load = 100pf) 20 s/div output 50mv/div in+ 5mv/div MAX44265 toc23 a v = 10v/v 10 s/div output 1v/div in+ 1v/div large-signal pulse response (c load = 15pf) MAX44265 toc24 a v = 1v/v typical operating characteristics (continued) (v dd = 3v, v ss = v cm = 0v, r l to v dd /2, t a = +25?, unless otherwise noted.) power-up settling time MAX44265 toc20 500ns/div output 500mv/div v dd 1v/div in+ = v dd / 2 a v = 1v/v www.datasheet.co.kr datasheet pdf - http://www..net/
MAX44265 rail-to-rail, 200khz op amp with shutdown in a tiny, 6-bump wlp 8 _______________________________________________________________________________________ typical operating characteristics (continued) (v dd = 3v, v ss = v cm = 0v, r l to v dd /2, t a = +25?, unless otherwise noted.) percent overshoot vs. capacitive load MAX44265 toc28 c load (pf) overshoot (%) 80 60 20 40 0.5 1.0 1.5 2.0 3.0 2.5 3.5 4.0 0 0 100 a v = 1v/v r l = 1m ? r l = 100k ? r l = 10k ? output waveform with r iso (c load = 100pf, r iso = 6.2k ? ) MAX44265 toc29 20 s/div output 50mv/div in+ 50mv/div a v = 1v/v output waveform without r iso (c load = 100pf) 20 s/div MAX44265 toc30 output 50mv/div in+ 50mv/div a v = 1v/v large-signal gain vs. frequency frequency (khz) gain (db) -4 -3 -2 -1 0 2 1 4 3 MAX44265 toc27 100 10 1 a v = +1v/v v out = 2v p-p c load = 15pf small-signal gain vs. frequency MAX44265 toc26 frequency (khz) gain (db) 100 10 -8 -6 -4 -2 0 2 4 6 8 10 -10 1 1000 a v = +1v/v v out = 100mv p-p c load = 15pf www.datasheet.co.kr datasheet pdf - http://www..net/
MAX44265 rail-to-rail, 200khz op amp with shutdown in a tiny, 6-bump wlp _______________________________________________________________________________________ 9 pin name function a1 in+ noninverting amplifier input a2 v ss negative supply voltage b1 in- inverting amplifier input c1 out amplifier output b2 v dd positive supply voltage c2 shdn shutdown pin description a1 a2 b1 b2 c1 c2 in+ v ss in- v dd out shdn + top view MAX44265 wlp bump side down pin configuration www.datasheet.co.kr datasheet pdf - http://www..net/
MAX44265 rail-to-rail, 200khz op amp with shutdown in a tiny, 6-bump wlp 10 ______________________________________________________________________________________ detailed description featuring a maximized ratio of gbw to supply current, low operating supply voltage, low input bias current, and rail-to-rail inputs and outputs, the MAX44265 is an excellent choice for precision or general-purpose, low- current, low-voltage, battery-powered applications. this cmos device consumes an ultra-low 4? (typ) supply current and has a 200? (typ) offset voltage. for addi- tional power conservation, the ic features a low-power shutdown mode that reduces supply current to 1na (typ) and puts the amplifier? output in a high-imped- ance state. this device is unity-gain stable with a 200khz gbw product, driving capacitive loads up to 30pf. the capacitive load can be increased to 250pf when the amplifier is configured for a 10v/v gain. rail-to-rail inputs and outputs the ic has a parallel-connected n- and p-channel dif- ferential 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 ic is capable of driving the output to within 5mv of both supply rails with a 100k ? load. this device can drive a 5k ? load with swings to within 60mv of the rails. figure 1 shows the output voltage swing of the ic configured as a unity-gain buffer powered from a single 3v supply. low input bias current the ic features 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 ic? amplifier is unity-gain stable for loads up to 30pf. however, the capacitive load can be increased to 250pf when the amplifier is configured for a mini- mum gain of 10v/v. applications that require greater capacitive-drive capability should use an isolation resistor between the output and the capacitive load (figure 2). also, in unity-gain applications with relatively small r l (approximately 5k ? ), the capacitive load can be increased up to 200pf. figure 1. rail-to-rail output voltage range rail-to-rail output voltage range 200 s/div in_ 3v 3v 0v 0v 1v/div out_ 1v/div figure 2. using a resistor to isolate a capacitive load from the op amp MAX44265 r iso c l r l a v = 1v/v r l r l + r iso www.datasheet.co.kr datasheet pdf - http://www..net/
MAX44265 chip information process: bicmos power-supply considerations the ic is optimized for single 1.8v to 5.5v supply oper- ation. a high amplifier power-supply rejection ratio of 95db (typ) allows the devices to be powered directly from a battery, simplifying design and extending bat- tery life. power-up settling time the ic typically requires 5? after power-up. supply settling time depends on the supply voltage, the value of the bypass capacitor, the output impedance of the incoming supply, and any lead resistance or induc- tance between components. op-amp settling time depends primarily on the output voltage and is slew- rate limited. figure 3 shows MAX44265 in a noninvert- ing voltage follower configuration with the input held at midsupply. the output settles in approximately 18? for v dd = 3v (see the typical operating characteristics for power-up settling time). shutdown mode the ic features an active-low shutdown input. the device enters shutdown in 2? (typ) and exit in 30? (typ). the amplifier? outputs are in a high-impedance state in shutdown mode. drive shdn low to enter shut- down. drive shdn high to enable the amplifier. power-supply bypassing and layout to minimize noise, bypass v dd with a 0.1? capacitor to ground, as close to the pin as possible. good layout techniques optimize performance by decreasing 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 3. power-up test configuration MAX44265 100k ? 100k ? out in- in+ 0v 5.5v v dd v ss rail-to-rail, 200khz op amp with shutdown in a tiny, 6-bump wlp ______________________________________________________________________________________ 11 www.datasheet.co.kr datasheet pdf - http://www..net/
MAX44265 rail-to-rail, 200khz op amp with shutdown in a tiny, 6-bump wlp 12 ______________________________________________________________________________________ package information for the latest package outline information and land patterns, 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 th e package regardless of rohs status. package type package code outline no. land pattern no. 6 wlp w61b1+1 21-0217 www.datasheet.co.kr datasheet pdf - http://www..net/
MAX44265 rail-to-rail, 200khz op amp with shutdown in a tiny, 6-bump wlp maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it 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 ____________________ 13 2010 maxim integrated products maxim is a registered trademark of maxim integrated products, inc. revision history revision number revision date description pages changed 0 12/10 initial release www.datasheet.co.kr datasheet pdf - http://www..net/

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