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general description the max4452/max4352 single, max4453/max4353 dual, and max4454/max4354 quad amplifiers combine high-speed performance with ultra-low power con- sumption. the max4452/max4453/max4454 are unity- gain stable and achieve a -3db bandwidth of 200mhz, while the max4352/max4353/max4354 are compen- sated for a minimum closed-loop gain of +5v/v and achieve a 80mhz -3db bandwidth. these devices con- sume only 620? of supply current per amplifier. these amplifiers operate from a +2.7v to +5.25v single supply and feature rail-to-rail outputs. along with an excellent speed/power ratio of 323mhz/ma, these devices feature a slew rate of 95v/? and fast 20ns rise and fall times. these devices are ideal for low- power/low-voltage systems that require wide bandwidth such as cell phones and keyless entry systems. the max4452/max4352 are available in miniature 5-pin sc70 and sot23 packages, while the max4453/ max4353 are available in tiny 8-pin sot23 and so packages. the max4454/max4354 are available in space-saving 14-pin tssop and so packages. ________________________applications battery-powered instruments cellular telephones portable communications keyless entry baseband applications features ultra-low 620a supply current high speed (max4452/max4453/max4454) 200mhz -3db bandwidth 30mhz 0.1db gain flatness 95v/s slew rate high speed (max4352/max4353/max4354) 80mhz -3db bandwidth 4mhz 0.1db gain flatness 240v/s slew rate single +3v/+5v operation rail-to-rail outputs input common-mode range extends beyond v ee ultra-small sc70-5, sot23-5, and sot23-8 packages max4452/max4453/max4454/max4352/max4353/max4354 low-cost, +3v/+5v, 620a, 200mhz, single-supply op amps with rail-to-rail outputs ________________________________________________________________ maxim integrated products 1 19-1824; rev 0; 2/01 ordering information rail-to-rail is a registered trademark of nippon motorola ltd. part temp. range pin- pa ck a g e top mark max4452 exk-t -40 c to +85 c 5 sc70-5 abi max4452euk-t -40 c to +85 c 5 sot23-5 adov max4453 eka-t -40 c to +85 c 8 sot23-8 aads max4453esa -40 c to +85 c 8 so max4454 eud -40 c to +85 c 14 tssop max4454esd -40 c to +85 c 14 so max4352 exk-t -40 c to +85 c 5 sc70-5 abj max4352euk-t -40 c to +85 c 5 sot23-5 adow max4353 eka-t -40 c to +85 c 8 sot23-8 aadt MAX4353ESA -40 c to +85 c 8 so max4354 eud -40 c to +85 c 14 tssop max4354esd -40 c to +85 c 14 so part no. of amps min gain gain bandwidth (mhz) slew rate (v/ s) max4452 1 1 200 95 max4352 1 5 400 240 max4453 2 1 200 95 max4353 2 5 400 240 max4454 4 1 200 95 max4354 4 5 400 240 selector guide for price, delivery, and to place orders, please contact maxim distribution at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. typical operating characteristic pin configurations appear at end of data sheet. max4452/3/4 toc01 0.40 0.45 0.55 0.50 0.70 0.75 0.65 0.60 0.80 supply current (ma) 2.7 3.5 3.9 3.1 4.3 4.7 5.1 5.5 supply voltage (v) supply current vs. supply voltage (per amplifier)
max4452/max4453/max4454/max4352/max4353/max4354 low-cost, +3v/+5v , 620 a, 200mhz, single-supply op amps with rail-to-rail outputs 2 _______________________________________________________________________________________ absolute maximum ratings dc electrical characteristics (v cc = +5v, v cm = v cc /2 - 0.75v, v ee = 0, r l = to v cc /2, v out = v cc /2, t a = t min to t max , unless otherwise noted. typical val- ues are at t a = +25 c.) (note 1) 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. supply voltage (v cc to v ee )..................................................+6v differential input voltage ......................................................2.5v in_-, in_+, out_..............................(v cc + 0.3v) to (v ee - 0.3v) current into input pins (in_+, in_-) ..................................20ma output short-circuit duration to v cc , v ee ................continuous continuous power dissipation (t a = +70 c) 5-pin sc70 (derate 3.1mw/ c above +70 c) .............247mw 5 pin sot23 (derate 7.1mw/ c above +70 c) ...........571mw 8-pin sot23 (derate 8.9mw/ c above +70 c)...........741mw 8-pin so (derate 5.9mw/ c above +70 c).................471mw 14-pin tssop (derate 6.3mw/ c above +70 c) ........500mw 14-pin so (derate 8mw/ c above +70 c)..................640mw operating temperature range ...........................-40 c to +85 c junction temperature ......................................................+150 c storage temperature range .............................-65 c to +150 c lead temperature (soldering, 10s) .................................+300 c parameter symbol conditions min typ max units operating supply voltage range v s guaranteed by psrr test 2.7 5.25 v v cc = + 5v 620 1200 quiescent supply current (per amplifier) i s v cc = +3v 530 a input common-mode voltage range v cm guaranteed by cmrr test v ee - 0.1 v cc - 1.5 v input offset voltage v os 0.4 12 mv input offset voltage temperature coefficient tc vos 7 v/ c input offset voltage matching max4453/max4454/max4353/max4354 1 mv input bias current i b 0.8 3 a input offset current i os 0.1 a differential mode, -0.04v (v in + - v in ) +0.04v 120 k ? input resistance r in common mode, v ee - 0.1v v cm v cc - 1.5v 30 m ? common-mode rejection ratio cmrr v ee - 0.1v v cm v cc - 1.5v 60 100 db open-loop gain a vol +0.5v v out +4.5v, r l = 1k ? 60 80 db sourcing 15 output current i out r l = 20 ? connected to v cc or v ee sinking 22 ma v cc - v oh 180 400 output voltage swing v out r l = 1k ? v ol - v ee 75 350 mv sourcing 17 output short-circuit current i sc sinking 24 ma power-supply rejection ratio psrr v cc = +2.7v to +5.25v, v cm = 0, v out = 2v 60 70 db
max4452/max4453/max4454/max4352/max4353/max4354 low-cost, +3v/+5v , 620 a, 200mhz, single-supply op amps with rail-to-rail outputs _______________________________________________________________________________________ 3 ac electrical characteristics (v cc = +5v, v ee = 0, v cm = +1.75v, r l = 1k ? to v cc /2, a vcl = +1v/v (max4452/max4453/max4454), a vcl = +5v/v (max4352/max4353/max4354), t a = +25 c, unless otherwise noted.) parameter symbol conditions min typ max units max4452/max4453/ max4454 200 small signal -3db bandwidth bw ss v out = 100mv p-p max4352/max4353/ max4354 80 mhz max4452/max4453/ max4454 15 large signal -3db bandwidth bw ls v out = 2v p-p max4352/max4353/ max4354 38 mhz max4452/max4453/ max4454 30 bandwidth for 0.1db flatness bw 0.1db v out = 100mv p-p max4352/max4353/ max4354 4 mhz max4452/max4453/ max4454 95 slew rate sr v out = 2v step max4352/max4353/ max4354 240 v/ s max4452/max4453/ max4454 20 rise/fall time t r , t f v out = 2v step 10% to 90% max4352/max4353/ max4354 8 ns max4452/max4453/ max4454 40 t s 1% v out = 2v step max4352/max4353/ max4354 50 max4452/max4453/ max4454 50 settling time t s 0.1% v out = 2v step max4352/max4353/ max4354 60 ns
max4452/max4453/max4454/max4352/max4353/max4354 low-cost, +3v/+5v , 620a, 200mhz, single-supply op amps with rail-to-rail outputs 4 _______________________________________________________________________________________ ac electrical characteristics (continued) (v cc = +5v, v ee = 0, v cm = +1.75v, r l = 1k ? to v cc /2, a vcl = +1v/v (max4452/max4453/max4454), a vcl = +5v/v (max4352/max4353/max4354), t a = +25 c, unless otherwise noted.) parameter symbol conditions min typ max units max4452/max4453/ max4454 -83 v cc = 5v, v out = 2vp-p, f c = 1mhz max4352/max4353/ max4354 -74 max4452/max4453/ max4454 -79 spurious-free dynamic range sfdr v cc = 3v, v out = 2vp-p, f c = 1mhz max4352/max4353/ max4354 -70 dbc max4452/max4453/ max4454 -83 v cc = 5v, v out = 2vp-p, f c = 1mhz max4352/max4353/ max4354 -74 max4452/max4453/ max4454 -79 2nd-harmonic distortion v cc = 3v, v out = 1vp-p, f c = 1mhz max4352/max4353/ max4354 -70 dbc max4452/max4453/ max4454 -87 v cc = 5v, v out = 2vp-p, f c = 1mhz max4352/max4353/ max4354 -74 max4452/max4453/ max4454 -80 3rd-harmonic distortion v cc = 3v, v out = 1vp-p, f c = 1mhz max4352/max4353/ max4354 -72 dbc max4452/max4453/ max4454 -82 v cc = 5v, v out = 2vp-p, f c = 1mhz max4352/max4353/ max4354 -71 max4452/max4453/ max4454 -77 total harmonic distortion thd v cc = 3v, v out = 1vp-p, f c = 1mhz max4352/max4353/ max4354 -68 db
max4452/max4453/max4454/max4352/max4353/max4354 low-cost, +3v/+5v , 620 a, 200mhz, single-supply op amps with rail-to-rail outputs _______________________________________________________________________________________ 5 max4452/3/4 toc01 0.40 0.45 0.55 0.50 0.70 0.75 0.65 0.60 0.80 supply current (ma) 2.7 3.5 3.9 3.1 4.3 4.7 5.1 5.5 supply voltage (v) supply current vs. supply voltage (per amplifier) 3 -7 100k 100m small-signal gain vs. frequency -2 -1 0 1 2 max4452/3/4 toc02 frequency (hz) small-signal gain (db) 1m 10m -3 -5 -4 -6 1g max4452/max4453/ max4454 max4352/max4353/ max4354 0.5 -0.5 10k 100k 1m 10m 100m 1g gain flatness vs. frequency -0.3 max4452/3/4 toc03 frequency (hz) gain flatness (db) -0.1 0.1 0.3 -0.4 -0.2 0 0.2 0.4 max4452/max4453/ max4454 max4352/max4353/ max4354 typical operating characteristics (v cc = +5v, v ee = 0, v cm = +1.75v, a vcl = +1v/v (max4452/max4453/max4454), a vcl = +5v/v (max4352/max4353/max4354), r l = 1k ? to v cc /2, c l = 5pf, t a = +25 c, unless otherwise noted.) note 1: units are 100% production tested at t a = +25 c. specifications over temperature limits are guaranteed by design. note 2: guaranteed by design. ac electrical characteristics (continued) (v cc = +5v, v ee = 0, v cm = +1.75v, r l = 1k ? to v cc /2, a vcl = +1v/v (max4452/max4453/max4454), a vcl = +5v/v (max4352/max4353/max4354), t a = +25 c, unless otherwise noted.) parameter symbol conditions min typ max units two-tone, third-order intermodulation distortion f 1 = 2mhz, f 2 = 2.1mhz -65 dbc input noise-voltage density e n f = 10khz 15 nv/ hz input noise-current density i n f = 10khz 0.5 pa/ hz input capacitance c in 2pf output impedance z out f = 1mhz 0.8 ? capacitive load drive 22 pf crosstalk x talk max4453/max4454/max4353/max4354 v out = 100mvp-p, f = 1mhz -74 db power-up 1% settling time (note 2) 1 100 s
max4452/max4453/max4454/max4352/max4353/max4354 low-cost, +3v/+5v , 620 a, 200mhz, single-supply op amps with rail-to-rail outputs 6 _______________________________________________________________________________________ 3 -7 100k 1m 1g large-signal gain vs. frequency -5 -6 -4 -3 -2 0 -1 1 2 max4452/3/4 toc04 frequency (hz) large-signal gain (db) 10m 100m max4452/max4453/ max4454 max4352/max4353/ max4354 max4452/max4453/ max4454 max4352/max4353/ max4354 v out = 1vp-p 3 -7 100k 10m 100m large-signal gain vs. frequency -5 -6 -4 -3 -2 -1 2 1 0 max4452/3/4 toc05 frequency (hz) large-signal gain (db) 1m 1g v out = 2vp-p max4452/max4453/ max4454 max4352/max4353/ max4354 100 -60 -40 0 -20 40 20 60 80 gain (db) max4452/max4453/max4454 gain and phase vs. frequency 180 -180 -90 -135 -45 0 45 90 135 10k 1m 10m 100m frequency (hz) 100k 1g gain phase max4452/3/4 toc06 a vcl = +1000v/v 100 -60 -40 0 -20 40 20 60 80 gain (db) max4352/max4353/max4354 gain and phase vs. frequency 180 -180 -90 -135 -45 0 45 90 135 10k 1m 10m 100m frequency (hz) 100k 1g gain phase max4452/3/4 toc07 a vcl = +1000v/v max4452/max4453/max4454 small-signal pulse response max4452/3/4 toc08 50ns/div input 50mv/div output 50mv/div max4352/max4353/max4354 small-signal pulse response max4452/3/4 toc09 50ns/div input 10mv/div output 50mv/div max4452/max4453/max4454 large-signal pulse response max4452/3/4 toc10 50ns/div input 500mv/div output 500mv/div max4352/max4353/max4354 large-signal pulse response max4452/3/4 toc11 50ns/div input 100mv/div output 500mv/div max4452/max4453/max4454 large-signal pulse response max4452/3/4 toc12 50ns/div input 1v/div output 1v/div typical operating characteristics (continued) (v cc = +5v, v ee = 0, v cm = +1.75v, a vcl = +1v/v (max4452/max4453/max4454), a vcl = +5v/v (max4352/max4353/max4354), r l = 1k ? to v cc /2, c l = 5pf, t a = +25 c, unless otherwise noted.)
max4452/max4453/max4454/max4352/max4353/max4354 low-cost, +3v/+5v, 620a, 200mhz, single-supply op amps with rail-to-rail outputs _______________________________________________________________________________________ 7 max4352/max4353/max4354 large-signal pulse response max4452/3/4 toc13 50ns/div input 200mv/div output 1v/div max4452/max4453/max4454 small-signal pulse response max4452/3/4 toc14 50ns/div input 50mv/div output 50mv/div r l = 150 ? max4352/max4353/max4354 small-signal pulse response max4452/3/4 toc15 50ns/div input 10mv/div output 50mv/div r l = 150 ? max4452/max4453/max4454 large-signal pulse response max4452/3/4 toc16 50ns/div input 500mv/div output 500mv/div r l = 150 ? max4352/max4353/max4354 large-signal pulse response max4452/3/4 toc17 50ns/div input 100mv/div output 500mv/div r l = 150 ? 100k 10m 1m 100m 1g closed-loop output impedance vs. frequency max4452/3/4 toc18 frequency (hz) output impedance ( ? ) 1000 0.1 1 10 100 0 10k 100k 1m 10m 100m 1g -10 -30 -20 -40 -50 -60 -70 -90 max4452 / 3 / 4 toc19 frequency (hz) crosstalk (db) crosstalk vs. frequency -80 100 1k 10k 100k max4452/3/4 toc20 r load ( ? ) open-loop gain (db) 120 0 20 40 60 80 100 open-loop gain vs. load resistance 100k 1m 10m 1g frequency (hz) psr (db) 0 -90 -60 -70 -80 -50 -30 -40 -10 -20 power-supply rejection vs. frequency 100m max4452/3/4 toc21 typical operating characteristics (continued) (v cc = +5v, v ee = 0, v cm = +1.75v, a vcl = +1v/v (max4452/max4453/max4454), a vcl = +5v/v (max4352/max4353/max4354), r l = 1k ? to v cc /2, c l = 5pf, t a = +25 c, unless otherwise noted.)
max4452/max4453/max4454/max4352/max4353/max4354 low-cost, +3v/+5v, 620a, 200mhz, single-supply op amps with rail-to-rail outputs 8 _______________________________________________________________________________________ 100k 1m 10m 1g max4452/3/4 toc22 frequency (hz) cmr (db) -40 -90 -80 -70 -60 -50 common-mode rejection vs. frequency 100m -110 -100 1000 10 1 1k 10k 100k 10 100 1m voltage noise density vs. frequency 100 max4452/3/4 toc23 frequency (hz) voltage noise (nv/ hz ) 100 0 current noise density vs. frequency 10 max4452/3/4 toc24 current noise density (pa/ hz ) 1 1 1k 10k 100k 10 100 1m frequency (hz) -10 -100 100k 100m 10m 1m max4452/max4453/max4454 distortion vs. frequency -70 -90 -30 -50 0 -60 -80 -20 -40 max4452/3/4 toc25 distortion (dbc) v out = 1vp-p 2nd harmonic 3rd harmonic frequency (hz) -10 -90 -100 100k 100m 10m 1m max4352/max4353/max4354 distortion vs. frequency -70 -30 -50 0 -60 -80 -20 -40 max4452/3/4 toc26 frequency (hz) distortion (dbc) v out = 2vp-p 2nd harmonic 3rd harmonic -100 -80 -90 -60 -70 -50 -40 0 1.5 2.0 0.5 1.0 2.5 3.0 3.5 max4452/max4453/max4454 distortion vs. output voltage max4452/3/4 toc27 output voltage (vp-p) distortion (dbc) 2nd harmonic 3rd harmonic f = 1mhz -100 -80 -90 -60 -70 -50 -40 0 1.5 2.0 0.5 1.0 2.5 3.0 3.5 max4352/max4353/max4354 distortion vs. output voltage max4452/3/4 toc28 output voltage (vp-p) distortion (dbc) 2nd harmonic 3rd harmonic f = 1mhz -40 -100 100 1k 10k max4452/max4453/max4454 distortion vs. output resistance -80 max4452/3/4 toc29 r load ( ? ) distortion (dbc) -70 -60 -50 -90 v out = 1vp-p, f = 1mhz 2nd harmonic 3rd harmonic -40 -100 100 1k 10k max4352/max4353/max4354 distortion vs. output resistance -80 max4452/3/4 toc30 r load ( ? ) distortion (dbc) -70 -60 -50 -90 v out = 2vp-p, f = 1mhz 2nd harmonic 3rd harmonic typical operating characteristics (continued) (v cc = +5v, v ee = 0, v cm = +1.75v, a vcl = +1v/v (max4452/max4453/max4454), a vcl = +5v/v (max4352/max4353/max4354), r l = 1k ? to v cc /2, c l = 5pf, t a = +25 c, unless otherwise noted.)
max4452/max4453/max4454/max4352/max4353/max4354 low-cost, +3v/+5v, 620a, 200mhz, single-supply op amps with rail-to-rail outputs _______________________________________________________________________________________ 9 10 14 12 18 16 22 20 24 28 26 30 0 50 100 150 isolation resistance vs. capacitive load max4452/3/4 toc31 c load (pf) r iso ( ? ) max4452/max4453/max4454 power-up time max4452/3/4 toc32 500ns/div v supply v out 5v 0 1.5v 0 max4352/max4353/max4354 power-up time max4452/3/4 toc33 500ns/div v supply v out 5v 0 1.5v 0 0 0.3 0.2 0.1 0.4 0.5 0.6 0.7 0.8 0.9 1.0 -50 0 -25 25 50 75 100 max4452/3/4 toc34 temperature ( c) supply current (ma) supply current vs. temperature (per amplifier) -200 -100 -150 50 0 -50 150 100 200 -50 -5 10 -35 -20 25 40 55 70 85 input bias current vs. temperature max4452/3/4 toc35 temperature ( c) input bias current ( a) -0.10 -0.06 -0.08 -0.02 -0.04 0.02 0 0.04 0.08 0.06 0.10 -50 -20 -5 10 -35 2540557085 max4452/3/4 toc36 temperature ( c) input offset current ( a) input offset current vs. temperature -2.0 -1.0 -1.5 0.5 0 -0.5 1.5 1.0 2.0 -50 -5 10 -35 -20 25 40 55 70 85 max4452/3/4 toc37 temperature ( c) input offset voltage (mv) input offset voltage vs. temperature 0 50 100 150 200 250 -50 -5 10 -35 -20 25 40 55 70 85 max4452/3/4 toc38 temperature ( c) output voltage swing (mv) output voltage swing vs. temperature v oh v ol typical operating characteristics (continued) (v cc = +5v, v ee = 0, v cm = +1.75v, a vcl = +1v/v (max4452/max4453/max4454), a vcl = +5v/v (max4352/max4353/max4354), r l = 1k ? to v cc /2, c l = 5pf, t a = +25 c, unless otherwise noted.)
max4452/max4453/max4454/max4352/max4353/max4354 low-cost, +3v/+5v, 620a, 200mhz, single-supply op amps with rail-to-rail outputs 10 ______________________________________________________________________________________ pin description pin max4452 max4352 max4453 max4353 max4454 max4354 name function 1 out amplifier output 2 4 11 v ee negative power supply 3 in+ noninverting amplifier input 4 in- inverting amplifier input 584v cc positive power supply 1 1 outa amplifier a output 2 2 ina- amplifier a inverting input 3 3 ina+ amplifier a noninverting input 7 7 outb amplifier b output 6 6 inb- amplifier b inverting input 5 5 inb+ amplifier b noninverting input 8 outc amplifier c output 9 inc- amplifier c inverting input 10 inc+ amplifier c noninverting input 14 outd amplifier d output 13 ind- amplifier d inverting input 12 ind+ amplifier d noninverting input
max4452/max4453/max4454/max4352/max4353/max4354 low-cost, +3v/+5v, 620a, 200mhz, single-supply op amps with rail-to-rail outputs ______________________________________________________________________________________ 11 detailed description the max4452/max4352 single, max4453/max4353 dual, and max4454/max4354 quad, single-supply, rail- to-rail, voltage-feedback amplifiers achieve high slew rates and wide bandwidths while consuming only 620a per amplifier. excellent speed/power ratio makes them ideal for portable devices and high-fre- quency signal applications. internal feedback around the output stage ensures low open-loop output impedance, reducing gain sensitivity to load variations. this feedback also produces demand-driven current bias to the output transistors. rail-to-rail outputs, ground-sensing input the input common-mode range extends from (v ee - 0.1v) to (v cc - 1.5v) with excellent common-mode rejection. beyond this range, the amplifier output is a nonlinear function of the input, but does not undergo phase reversal or latchup. the output swings to within 180mv of either power-sup- ply rail with a 1k ? load. the input ground-sensing and the rail-to-rail output substantially increase the dynamic range. output capacitive loading and stability the max4452/max4453/max4454/max4352/max4353/ max4354 are optimized for ac performance. they are not designed to drive highly reactive loads. such loads decrease phase margin and may produce excessive ringing and oscillation. the use of an isolation resistor eliminates this problem (figure 1). figure 2 is a graph of the optimal isolation resistor (r iso ) vs. capacitive load. applications information choosing resistor values unity-gain configuration the max4452/max4453/max4454 are internally com- pensated for unity gain. when configured for unity gain, a 24 ? feedback resistor (r f ) is recommended. this resistor improves ac response by reducing the q of the parallel lc circuit formed by the parasitic feedback capacitance and inductance. inverting and noninverting configurations select the gain-setting feedback (r f ) and input (r g ) resistor values that best fit the application. large resis- tor values increase voltage noise and interact with the amplifier s input and pc board capacitance. this can generate undesirable poles and zeros and decrease bandwidth or cause oscillations. for example, a nonin- verting gain-of-two configuration (r f = r g ) using 1k ? resistors, combined with 2pf of amplifier input capaci- tance and 1pf of pc board capacitance, causes a pole at 106mhz. since this pole is within the amplifier band- width, it jeopardizes stability. reducing the 1k ? resis- tors to 100 ? extends the pole frequency to 1.06ghz, but could limit output swing by adding 200 ? in parallel with the amplifier s load resistor. note: for high-gain applications where output offset voltage is a consideration, choose rs to be equal to the parallel combination of rf and rg (figures 3a and 3b). 3b): r s r f r g r f r g = + figure 2. optimal isolation resistor vs. capacitive load v out v in r bin r iso r f c l r g figure 1. driving a capacitive load through an isolation resistor 10 14 12 18 16 22 20 24 28 26 30 0 50 100 150 isolation resistance vs. capacitive load max4452/3/4 toc39 c load (pf) r iso ( ? )
max4452/max4453/max4454/max4352/max4353/max4354 low-cost, +3v/+5v, 620a, 200mhz, single-supply op amps with rail-to-rail outputs 12 ______________________________________________________________________________________ active filters the low distortion and high bandwidth of the max4452/max4453/max4454 and max4352/ max4353/max4354 make them ideal for use in active filter circuits. figure 4 is a 15mhz lowpass multiple feedback active filter using the max4452. adc input buffer input buffer amplifiers can be a source of significant errors in high-speed adc applications. the input buffer is usually required to rapidly charge and discharge the adc s input, which is often capacitive. see output capacitive loading and stability . in addition, since a high-speed adc s input impedance often changes very rapidly during the conversion cycle, measurement accuracy must be maintained using an amplifier with very low output impedance at high frequencies. the combination of high speed, fast slew rate, low noise, and a low and stable distortion over load makes the max4452/max4453/max4454/max4352/max4353/ max4354 ideally suited for use as buffer amplifiers in high-speed adc applications. layout and power-supply bypassing these amplifiers operate from a single +2.7v to +5.25v power supply. bypass v cc to ground with a 0.1f capacitor as close to the pin as possible. maxim recommends using microstrip and stripline tech- niques to obtain full bandwidth. design the pc board for a frequency greater than 1ghz to prevent amplifier performance degradation due to board parasitics. avoid large parasitic capacitance at inputs and out- puts. whether or not a constant-impedance board is used, observe the following guidelines: do not use wirewrap boards due to their high induc- tance. do not use ic sockets because of the increased parasitic capacitance and inductance. gain r2 r1 0 1 2p 1 r2 r3 c1 c2 c2 c1 c2 r2 r3 1 r1 1 r2 1 r3 = ? = = ++ - q in r s r f r g v out r o v out = (r f / r g ) v in figure 3b. inverting gain configuration v out = [1+ (r f / r g )] v in in r s r f r g v out r o figure 3a. noninverting gain configuration v in v out c1 100pf r2 150 ? c2 15pf r3 r1 511 ? 150 ? 10k ? 10k ? +5.0v figure 4. multiple-feedback lowpass filter
max4452/max4453/max4454/max4352/max4353/max4354 low-cost, +3v/+5v, 620a, 200mhz, single-supply op amps with rail-to-rail outputs ______________________________________________________________________________________ 13 max4452/max4453/max4454/max4352/max4353/max4354 use surface-mount instead of through-hole compo- nents for better high-frequency performance. use a pc board with at least two layers; it should be as free from voids as possible. keep signal lines as short and as straight as possi- ble. do not make 90 turns; round all corners. ____________________chip information max4452/max4352 transistor count: 97 max4453/max4353 transistor count: 192 max4454/max4354 transistor count: 378 process: bipolar sc70, 5l.eps top view v ee in- in+ 15 v cc out max4452 max4352 sot23/ sc70 2 34 inb- inb+ v ee 1 2 8 7 v cc outb ina- ina+ outa sot23/so 3 4 6 5 max4453 max4353 14 13 12 11 10 9 8 1 2 3 4 5 6 7 outd ind- ind+ v ee v cc ina+ ina- outa max4454 max4354 inc+ inc- outc outb inb- inb+ tssop/so pin configurations package information
max4452/max4453/max4454/max4352/max4353/max4354 low-cost, +3v/+5v, 620a, 200mhz, single-supply op amps with rail-to-rail outputs 14 ______________________________________________________________________________________ package information (continued) sot5l.eps soicn.eps
low-cost, +3v/+5v, 620a, 200mhz, single-supply op amps with rail-to-rail outputs 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. 15 ____________________maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 ? 2001 maxim integrated products printed usa is a registered trademark of maxim integrated products. max4452/max4453/max4454/max4352/max4353/max4354 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. 15 ____________________maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 ? 2001 maxim integrated products printed usa is a registered trademark of maxim integrated products. package information (continued) sot23, 8l.eps tssop,no pads.eps

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