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mp5121, mp5221, MP5421 high speed, rail-to-rail input-output, and single-supply op amps mp5121_mp5221_MP5421 rev. 0.91 www.monolithicpower.com 1 12/9/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. the future of analog ic technology description the mp5121(single), mp5221(dual), and MP5421(quad) are high-speed, high-voltage rail-to-rail input-output amplifiers for use as voltage reference buffers in thin film transistor liquid crystal displays (tft-lcds). the mp5121 family provides excellent overall performance and versatility. the 20mhz ?3db bandwidth and 45v/ s slew rate make these amplifier suitable for many portable applications. the mp5121, mp5221, and MP5421 are designed to operate at supply voltages as low as 3.2v and up to 20v at 1.6ma of supply current per amplifier. the mp5121 family has true single supply capability. the input can swing 0.5v below the negative rail and 0.5v above the positive rail. the output can swing within 100mv of each rail. the MP5421 quad channel is available in the space-saving 14-pin tssop package. the mp5221 dual channel is available in the 8-pin msop package and the mp5121 single channel is available in 5-pin tsot package. all feature a standard operational amplifier pin out. features ? 20mhz ?3db bandwidth ? 45v/ s slew rate ? single-supply operation: 3.2v to 20v ? supply current (per amplifier)1.6ma ? unity-gain stable ? output swing within 100mv of supply rail ? rail-to-rail input capability ? high output drive capability (50ma) ? mp5121 available in tsot-5 ? mp5221 available in msop-8 ? MP5421 available in tssop-14 applications ? tft-lcd drive circuits ? electronic notebooks ? electronic games ? touch-screen displays ? personal communication devices ? personal digital assistants (pda) ? portable instrumentation ? sampling adc amplifiers ? wireless lan ? office automation ? active filters ? adc/dac buffer ?mps? and ?the future of analog ic technology? are registered trademarks of monolithic power systems, inc.
mp5121_mp5221_MP5421 ?high speed, single-supply rail-to-rail input-output op amps typical application vin + gnd + - mp5121 u1 0.1nf co vs + 10uf vs - tf t lcd 0.1nf 10uf
mp5121_mp5221_MP5421 ?high speed, single-supply rail-to-rail input-output op amps mp5121_mp5221_MP5421 rev. 0.91 www.monolithicpower.com 3 12/9/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. ordering information part number package top marking free air temperature (t a ) mp5121dj * tsot23-5 2r mp5221dk** mosp-8 5221d MP5421dm*** tssop-14 m5421dm ?40 c to +85 c * for tape and reel, add suffix -z (eg. mp5121dj-z). for rohs compliant packaging, add suffix-lf (eg. mp5121dj-lf-z). ** for tape and reel, add suffix -z (eg. mp5221dk-z). for rohs compliant packaging, add suffix-lf (eg. mp5221dk-lf-z). *** for tape and reel, add suffix -z (eg. MP5421dm-z). for rohs compliant packaging, add suffix-lf (eg. MP5421dm-lf-z). package reference top view top view -- + -- + -- + -- + -- + -- + -- + 1 top view 1 4 3 2 8 5 6 7 5 4 2 3 vs+ vout vouta mp5121 (5-pin tsot) MP5421 (14-pin tssop) mp5221 (8-pin msop) vina- vs- vs+ voutb vinb- vinb+ vina+ 1 4 3 2 vouta vina- vs+ vina+ 7 6 5 14 11 12 13 8 9 10 vinb+ voutb vinb- voutd vind- vs- vind+ vinc+ voutc vinc- vs- vin+ vin-
mp5121_mp5221_MP5421 ?high speed, single-supply rail-to-rail input-output op amps mp5121_mp5221_MP5421 rev. 0.91 www.monolithicpower.com 4 12/9/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. absolute maxi mum ratings (1) (t a =25 c) single supply voltage v s .............?0.3v to +23v input voltage.................... v s - - 0.5v, v s + +0.5v maximum continuous output current .................................................................. 50ma maximum die temperature ....................+125c storage temperature............... -60c to +150c ambient operating temp........... -40c to +85c power dissipation. ...................... see curves (2) recommended operating conditions (3) single power supply operation v s ......................................................3.2v to + 20v operating junct. temp (t j )..... ?40 c to +125 c thermal resistance (4) ja jc msop ....................................150 ...... 65.. c/w tsot .....................................220 .... 110.. c/w tssop ...................................40 ?.....6... c/w notes: 1) exceeding these ratings may damage the device. 2) the maximum allowable power dissipation is a function of the maximum junction temperature t j (max), the junction-to- ambient thermal resistance ja , and the ambient temperature t a . the maximum allowable continuous power dissipation at any ambient temperature is calculated by p d (max) = (t j (max)-t a )/ ja . exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. internal thermal shutdown circuitry protects the device from permanent damage. 3) the device is not guaranteed to function outside of its operating conditions. 4) measured on jesd51-7, 4-layer pcb
mp5121_mp5221_MP5421 ?high speed, single-supply rail-to-rail input-output op amps mp5121_mp5221_MP5421 rev. 0.91 www.monolithicpower.com 5 12/9/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. electrical characteristics v s = 10v, v cm = 5v, v out = 5v, rl = 10k ? and c l = 10pf, t a = t j =25c, unless otherwise noted. parameter symbol condition min typ max units input characteristics input offset voltage v os 2 20 mv a verage offset voltage drift tcv os 5 /c input bias current i b 0.5 2 a input impedance r in 1 g ? input capacitance c in 1.35 pf common-mode input range cmir -5.5 +5.5 v common-mode rejection ratio cmrr for v in from -5.5v to +5.5v 60 85 db open loop gain a vol -4.5v v out +4.5v 50 60 db output characteristics output swing low v ol i l = -5ma -4.95 v output swing high v oh i l = -5ma 4.82 v short circuit current i sc sourcing 70 ma power supply performance power supply rejection ratio psrr v s is moved from 2.25v to 7.75v 70 95 db supply current (per amplifier) i s no load 1.6 ma dynamic performance slew rate (rise/fall) sr -4.0v v out +4.0v, 20% to 80% 45 v/s settling to +0.1% (a v = +1) t s (av = +1), v o = 2v step 500 ns -3db bandwidth bw r l = 10k ? , c l = 10pf 20 mhz gain-bandwidth product gbwp r l = 10k ? , c l = 10pf 14 mhz phase margin pm r l = 10k ? , c l = 10pf 50 channel separation cs f = 5mhz (mp5221 & MP5421 only) 70 db
mp5121_mp5221_MP5421 ?high speed, single-supply rail-to-rail input-output op amps mp5121_mp5221_MP5421 rev. 0.91 www.monolithicpower.com 6 12/9/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. electrical characteristics ( continued ) v s = 20v, v cm = 10v, v out = 10v, rl = 10k ? and c l = 10pf, t a = 25c, unless otherwise noted. parameter symbol condition min typ max units input characteristics input offset voltage v os 2 20 mv a verage offset voltage drift tcv os 5 /c input bias current i b 0.5 2 a input impedance r in 1 g ? input capacitance c in 1.35 pf common-mode input range cmir 8 v common-mode rejection ratio cmrr for v in from -8v to +8v 60 85 db open loop gain a vol -9v v out +9v 50 60 db output characteristics output swing low v ol i l = -5ma -4.95 v output swing high v oh i l = -5ma 4.82 v short circuit current i sc sourcing 70 ma power supply performance power supply rejection ratio psrr v s is moved from 2.25v to 7.75v 70 95 db supply current (per amplifier) i s no load 1.6 ma dynamic performance slew rate sr -4.0v v out +4.0v, 20% to 80% 45 v/s settling to +0.1% (a v = +1) t s (av = +1), v o = 2v step 500 ns -3db bandwidth bw r l = 10k ? , c l = 10pf 20 mhz gain-bandwidth product gbwp r l = 10k ? , c l = 10pf 14 mhz phase margin pm r l = 10k ? , c l = 10pf 50 channel separation cs f = 5mhz (mp5221 & MP5421 only) 70 db
mp5121_mp5221_MP5421 ?high speed, single-supply rail-to-rail input-output op amps mp5121_mp5221_MP5421 rev. 0.91 www.monolithicpower.com 7 12/9/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. typical performanc e characteristics v s+ =5v, v s- =-5v, r l =10k ? , c l =12pf, t a =25oc, unless otherwise noted. frequency response vs. c l open loop frequency response vs. r l output noise vs. frequency mp5121 closed loop av=1 closed loop av=2 v os vs. v in 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 24681012141618 suppl y vol tage (v) suppl y cu rrent (ma) vin ( v ) v os (mv) frequency ( khz ) -50 -40 -30 -20 -10 0 10 20 30 40 50 frequency (khz) frequency (khz) -50 -40 -30 -20 -10 0 10 20 30 40 50 ga in (db ) -200 -150 -100 -50 0 50 100 150 200 -16 -12 -8 -4 0 4 8 12 16 0.1 10 1000 100000 frequency (khz) frequency (khz) frequency (hz) -5 -4 -3 -2 -1 0 1 2 3 4 5 10k 1k 560 560 150 av=1 1 10 100 1000 10000 0.1 10 1000 100000 0.1 1 10 100 1000 10000 100000 0.1 1 10 100 1000 10000 100000 ga in (db ) -200 -150 -100 -50 0 50 100 150 200 -20 -15 -10 -5 0 5 10 15 20 -4 -3 -2 -1 0 1 2 3 4 -40 -20 0 20 40 60 80 1 10 100 1000 10000 100000 gain (db) gain (db) 0 20 40 60 80 100 120 140 160 180 200 1 10 100 1000 10000 100000 magnitude (db) psrr vs. frequency frequency (khz ) psrr ( db ) 10 20 30 40 50 60 70 80 90 100 0.1 10 1000 100000 supply current vs. supply voltage mp5121 ga in phase phase ga in phase ga in 1000pf 100pf 50pf 0pf
mp5121_mp5221_MP5421 ?high speed, single-supply rail-to-rail input-output op amps mp5121_mp5221_MP5421 rev. 0.91 www.monolithicpower.com 8 12/9/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. typical performanc e characteristics ( continued ) v s+ =5v, v s- =-5v, r l =10k ? , c l =12pf, t a =25oc, unless otherwise noted. v in 0.1v/div v out 0.5v/div v out 0.5v/div 200ns/div 4ns/div v s+ 2v/div v in 0.1v/div v in 0.1v/div v out 50mv/div v s+ 1v/div v in 0.2v/div v out 1v/div v in 1v/div v out 5v/div v out 1v/div v out 2v/div v in 0.2v/div v out 1v/div v in 1v/div v out 5v/div
mp5121_mp5221_MP5421 ?high speed, single-supply rail-to-rail input-output op amps mp5121_mp5221_MP5421 rev. 0.91 www.monolithicpower.com 9 12/9/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. operation description the mp5121/mp5221/MP5421 are high-speed, high slew rate, rail-to-rail input-output operational amplifiers. these devices can operate up to 50ma output current and 20mhz bandwidth. input the mp5x21 can operate with inputs from rail to rail. it does this through the use of two differential pairs. a traditional pnp differential pair is used from 0.5v below the negative rail to 1v below the positive rail. at that point the input is switched to a npn differential pair to operate up to 0.5v above the positive rail. the transition from one input differential pair to the other can cause distortion. inputs near the rails can also cause distortion and degradation of other specifications. output current rating the mp5x21 can sink or source 50ma. it can provide high values of peak current, and much reduced value of average current. when the output voltages are near the rails the ability to provide current will be reduced. output power make sure that the rms power is such that the die junction temperature will remain below 125oc power requirements the mp5x21 operates from a voltage supply, of vs and ground, or from a vs split supply. single-ended voltage range is +3.2v to +20v. psrr and noise a common figure of merit is the psrr (power supply rejection ratio). the psrr is a measure of how much noise gets from the supply rails into the output. notice that the psrr falls with increasing frequency. in order to have good psrr the ripple voltages and frequencies of the systems switching power supplies should be measured. if the psrr is not acceptable, inductors can be inserted in series with the power supply rails to provide improved psrr. also make sure there are no transients created on the power supply lines when the mp5x21 load current changes suddenly. this can damage the part. transients in addition to the ripple and noise on the power supplies, there are also transient voltage changes. this can be caused by another device on the same power supply suddenly drawing current or suddenly stopping a current draw. the design engineer should insure that there are no damaging transients induced on the power supply lines when the op amp suddenly changes current delivery. layout ground plane connect the opamp to a ground plane rather than ground traces for very low impedance. if this is not possible then make the ground traces as fat and short as possible. decoupling high performance devices such as the mp5x21, with high slew rates and high currents, need large decoupling capacitors. these should be placed as close to the supply pins as possible. use ground and power planes to make these decoupling capacitors as effective as possible. if that is not realistic then make the ground and power traces as thick and short as possible.
mp5121_mp5221_MP5421 ?high speed, single-supply rail-to-rail input-output op amps mp5121_mp5221_MP5421 rev. 0.91 www.monolithicpower.com 10 12/9/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. package information tsot23-5 0.30 0.50 seating plane 0.95 bsc 0.84 0.90 1.00 max 0.00 0.10 top view front view side view recommended land pattern 2.80 3.00 1.50 1.70 2.60 3.00 1 3 4 5 0.09 0.20 note: 1) all dimensions are in millimeters. 2) package length does not include mold flash, protrusion or gate burr. 3) package width does not include interlead flash or protrusion. 4) lead coplanarity (bottom of leads after forming) shall be 0.10 millimeters max. 5) drawing conforms to jedec mo-193, variation aa. 6) drawing is not to scale. 0.30 0.50 0 o -8 o 0.25 bsc gauge plane 2.60 typ 1.20 typ 0.95 bsc 0.60 typ see detail "a" detail a
mp5121_mp5221_MP5421 ?high speed, single-supply rail-to-rail input-output op amps mp5121_mp5221_MP5421 rev. 0.91 www.monolithicpower.com 11 12/9/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. package information msop8 note: 1) control dimension is in inches. dimension in bracket is in millimeters. 2) package length does not include mold flash, protrusion or gate burr. 3) package width does not include interlead flash or protrusion. 4) lead coplanarity (bottom of leads after forming) shall be 0.004" inches max. 5) pin 1 identification has half or full circle option. 6) drawing meets jedec mo-187, variation aa. 7) drawing is not to scale. seating plane 0.030(0.75) 0.037(0.95) 0.043(1.10)max 0.002(0.05) 0.006(0.15) front view bottom view pin 1 id (note 5) 0.114(2.90) 0.122(3.10) 0.187(4.75) 0.199(5.05) 1 4 5 8 0.010(0.25) 0.014(0.35) 0.0256(0.65)bsc 0.114(2.90) 0.122(3.10) top view 0.004(0.10) 0.008(0.20) side view gauge plane 0.010(0.25) 0.016(0.40) 0.026(0.65) 0 o -6 o recommended land pattern 0.016(0.40) 0.0256(0.65)bsc 0.181(4.60) 0.040(1.00)
mp5121_mp5221_MP5421 ?high speed, single-supply rail-to-rail input-output op amps notice: the information in this document is subject to change wi thout notice. please contact m ps for current specifications. users should warrant and guarantee that third party intellectual property rights ar e not infringed upon when integrating mps products into any application. mps will not assume any legal responsibility for any said applications. mp5121_mp5221_MP5421 rev. 0.91 www.monolithicpower.com 12 12/9/2009 mps proprietary information. unaut horized photocopy and d uplication prohibited. ? 2009 mps. all rights reserved. package information tssop14

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