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max44251/max44252?20v??? ?????? ??????? ?????1/f??? ??2.7v20v? ??1.15ma??5.9nv/ hz ?ic??? 10mhz ???6 v ? (?)??19nv/ c ? (?)??0.1hz10hz?123nv p-p ?????? ???????? ic8sot23?8 max ? ??14 soic?-40 c+125 c?? ? ? s 2.7v20v s emi? s ???6 v (?) s tcv os ?19nv/ c (?) s 5.9nv/ hz ? s 0.1hz10hz?123nv p-p s 400ns?? s 10mhz s ? s ???????? ? ? ? ?? ? ????? ? 19-6000; rev 1; 12/11 ?? ??????? china.maxim-ic. com/max44251.related maxmaxim ? integrated ? products, ? inc.??? ??? 20v 20v 20v 3.3v 3v v dd micro- processor v out 50r g 50r g r g v ref v dd v ss v in- v in+ c 1 buffer buffer max44251 max44251 max11211 max6126 max44251 r r 20v 1.5v buffer r r r 1 output available evaluation kit available ?????????????? ? ????? maxi m? 1080 0 85 2 124 9 () 1080 0 15 2 124 9 ( ) maxi m?china.maximintegrated.com max44251/max44252 20v???
max44251/max44252 20v??? supply voltage (v dd to v ss )................................. -0.3v to +22v all other pins .................................. (v ss - 0.3v) to (v dd + 0.3v) short-circuit duration to either supply rail ............................ 1s continuous input current (any pin) ................................. 20ma differential input voltage ...................................................... 6v maximum power dissipation (t a = +70c) sot23 (derate 9.1 mw/c above +70c) ................... 727mw max (derate 4.5 mw/c above +70c) .................... 362mw soic (derate 8.3 mw/c above +70c) .................. 666.7mw operating temperature range ........................ -40c to +125nc junction temperature ..................................................... +150nc storage temperature range ............................ -65c to +150nc lead temperature (soldering, 10s) .............................. +300nc soldering temperature (reflow) .................................... +260nc sot23 junction-to-ambient thermal resistance ( ja ) ....... 196c/w junction-to-case thermal resistance ( jc ) ............... 70c/w max junction-to-ambient thermal resistance ( ja ) ........ 221c/w junction-to-case thermal resistance ( jc ) ............... 42c/w soic junction-to-ambient thermal resistance ( ja ) ........ 120c/w junction-to-case thermal resistance ( jc ) ............... 37c/w absolute m a xi m u m r a tings n ote 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 china.maxim-ic.com/thermal-tutorial. stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these are stress ratings only, and functional opera- tion 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. p a ck a ge t he rma l c h ara cte r istics ( n ote 1) e lect r ic a l c h ara cte r istics (v dd = 10v, v ss = 0v, v in+ = v in- = v dd /2, r l = 10ki to v dd /2, t a = -40c to +125c, unless otherwise noted. typical values are at t a = +25c.) (note 2) param ete r s ym bol con d itions m in t yp ma x units p o w e r su pp l y supply voltage range v dd guaranteed by psrr 2.7 20 v power-supply rejection ratio (note 3) psrr v dd = 2.7v to 20v, v cm = 0v 140 145 db quiescent current per amplifier i dd r l = j t a = +25nc 1.15 1.55 ma -40nc < t a < +125nc 1.75 power-up time t on 25 fs d c s p eci f ic a tions input common-mode range v cm guaranteed by cmrr test v ss - 0.05 v dd - 1.5 v common-mode rejection ratio (note 3) cmrr t a = +25nc, v cm = -0.05v to (v dd - 1.5v) 133 140 db -40nc < t a < +125nc 130 maxim integrated 2
max44251/max44252 20v??? elect r ic a l ch ara cte r istics (continued) (v dd = 10v, v ss = 0v, v in+ = v in- = v dd /2, r l = 10ki to v dd /2, t a = -40c to +125c, unless otherwise noted. typical values are at t a = +25c.) (note 2) param ete r s ym bol con d itions m in t yp ma x units input offset voltage (note 3) v os t a = +25nc 3 6 fv -40nc < t a < +125nc 7 input offset voltage drift (note 3) tc v os 5 19 nv/nc input bias current (note 3) i b t a = +25nc 200 1300 pa -40nc < t a < +125nc 2400 input offset current (note 3) i os 400 pa open-loop gain (note 3) a vol 250mv p v out p v dd - 250mv, r l = 10ki to v dd /2 t a = +25nc 145 154 db -40nc < t a < +125nc 136 output short-circuit current to v dd or v ss noncontinuous 96 ma output voltage low v ol v out - v ss r l = 10ki to v dd /2 12 25 mv r l = 2ki to v dd /2 45 85 output voltage high v oh v dd - v out r l = 10ki to v dd /2 18 37 mv r l = 2ki to v dd /2 71 135 a c s p eci f ic a tions input voltage-noise density e n f = 1khz 5.9 nv/ hz input voltage noise 0.1hz < f < 10hz 123 nv p-p input current-noise density i n f = 1khz 0.6 pa/ hz input capacitance c in 2 pf gain-bandwidth product gbw 10 mhz phase margin pm c l = 20pf 60 degrees slew rate sr a v = 1v/v, v out = 2v p-p 8 v/fs capacitive loading c l no sustained oscillation, a v = 1v/v 500 pf total harmonic distortion thd v out = 2v p-p , a v = +1v/v, r l = 10ki to v dd /2 f = 1khz -124 db f = 20khz -119 settling time to 0.01%, v out = 2v step, a v = -1v/v 400 ns maxim integrated 3
max44251/max44252 20v??? elect r ic a l ch ara cte r istics (v dd = 3.3v, v ss = 0v, v in+ = v in- = v dd /2, r l = 10ki to v dd /2, t a = -40c to +125c, unless otherwise noted. typical values are at t a = +25c.) (note 2) param ete r s ym bol con d itions m in t yp ma x units p o w e r su pp l y quiescent current per amplifier i dd r l = j t a = +25nc 1.1 1.5 ma -40nc < t a < +125nc 1.65 power-up time t on 25 fs d c s p eci f ic a tions input common-mode range v cm guaranteed by cmrr test v ss - 0.05 v dd - 1.5 v common-mode rejection ratio (note 3) cmrr t a = +25nc, v cm = -0.05v to (v dd - 1.5v) 120 129 db -40nc < t a < +125nc 117 input offset voltage (note 3) v os t a = +25nc 3 5.5 fv -40nc < t a < +125nc 6.5 input offset voltage drift (note 3) tc v os 8 18 nv/nc input bias current (note 3) i b t a = +25nc 200 1100 pa -40nc < t a < +125nc 1200 input offset current (note 3) i os 400 pa open-loop gain (note 3) a vol 250mv p v out p v dd - 250mv, r l = 10ki to v dd /2 t a = +25nc 136 151 db -40nc < t a < +125nc 133 output short-circuit current to v dd or v ss noncontinuous 58 ma output voltage low v ol v out - v ss r l = 10ki to v dd /2 5 22 mv r l = 2ki to v dd /2 17 42 output voltage high v oh v dd - v out r l = 10ki to v dd /2 9 22 mv r l = 2ki to v dd /2 29 52 a c s p eci f ic a tions input voltage-noise density e n f = 1khz 6.2 nv/ hz input voltage noise 0.1hz < f < 10hz 123 nv p-p input current-noise density i n f = 1khz 0.3 pa/ hz input capacitance c in 2 pf gain-bandwidth product gbw 10 mhz maxim integrated 4
max44251/max44252 20v??? elect r ic a l ch ara cte r istics (continued) (v dd = 3.3v, v ss = 0v, v in+ = v in- = v dd /2, r l = 10ki to v dd /2, t a = -40c to +125c, unless otherwise noted. typical values are at t a = +25c.) (note 2) ? (v dd = 10v, v ss = 0v, outputs have r l = 10ki to v dd /2. t a = +25nc, unless otherwise specified.) n ote 2: all devices are 100% production tested at t a = +25c. temperature limits are guaranteed by design. n ote 3: guaranteed by design. param ete r s ym bol con d itions m in t yp ma x units phase margin pm c l = 20pf 60 degrees slew rate sr a v = 1v/v, v out = 1v p-p , 10% to 90% 5 v/fs capacitive loading c l no sustained oscillation, a v = 1v/v 500 pf total harmonic distortion thd v out = 1v p-p , a v = +1v/v, v cm = v dd /4, r l = 10ki to v dd /2 f = 1khz -124 db f = 20khz -100 settling time to 0.01%, v out = 1v step, a v = -1v/v 200 ns offset voltage histogram max44251 toc01 offset voltage (v) percent occurrence (%) 4.5 4.0 3.0 2.0 3.5 1.5 2.5 1.0 0.5 10 5 15 20 25 30 35 40 45 50 55 60 65 70 75 0 0 5.55.0 input offset voltage drift histogram max44251 toc02 offset voltage drift (v/c) percent occurrence (%) 0.005 0.004 0.002 0.003 0 0.001 -0.001 5 10 15 20 25 30 35 40 45 0 0.006 supply current vs. supply voltage max44251 toc03 supply voltage (v) supply current (ma) 20 15 10 5 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 02 5 t a = +85c t a = +25c t a = 0c t a = -40c supply current per amplifier t a = +125c maxim integrated 5
?() (v dd = 10v, v ss = 0v, outputs have r l = 10ki to v dd /2. t a = +25nc, unless otherwise specified.) supply current vs. temperature max44251 toc04 temperature (c) supply current (ma) 125 100 50 75 0 25 -25 1.08 1.10 1.12 1.14 1.16 1.18 1.20 1.22 1.24 1.26 1.28 1.06 -50 150 supply current per amplifier input offset voltage vs. input common mode max44251 toc05 input common voltage (v) v os (v) 8 6 4 2 1 2 3 4 5 6 0 01 0 input offset voltage vs. temperature max44251 toc06 v os (v) 1 2 3 4 5 6 0 temperature (c) 100 50 75 02 5 -25-50 125 input bias current vs. common-mode voltage max44251 toc07 input common-mode voltage (v) input bias current (pa) 2 3 1 0 -1 -2 -3 -4 -1000 -500 0 500 1000 1500 2000 -1500 -5 4 i bias- i bias+ t a = +125c t a = -40c t a = +25c input bias current vs. temperature max44251 toc08 i bias (pa) -1000 -750 -500 -250 0 250 500 750 1000 -1250 temperature (c) 125100 50 75 02 5 -25-50 150 negative i bias positive i bias common-mode rejection ratio vs. frequency max44251 toc09 frequency (hz) cmrr (db) 1m100k 1k 10k 10 1001 0 20 40 60 80 100 120 140 160 -20 0.1 100m10m max44251/max44252 20v??? maxim integrated 6
?() (v dd = 10v, v ss = 0v, outputs have r l = 10ki to v dd /2. t a = +25nc, unless otherwise specified.) output voltage high vs. output source current (v dd - v oh ) max44251 toc10 output source current (ma) output voltage high (mv) 8 6 4 2 100 200 300 400 500 600 0 01 0 output voltage low vs. output sink current max44251 toc11 output sink current (ma) output voltage low (mv) 8 6 4 2 50 100 150 200 250 300 0 01 0 output voltage swing high vs. temperature max44251 toc12 temperature (c) 125100 50 75 02 5 -25-50 150 v oh (mv) 5 10 15 20 25 30 35 0 r l = 10ki to v dd /2 2 4 6 8 10 12 14 16 18 0 output voltage swing low vs. temperature max44251 toc13 temperature (c) 125100 50 75 02 5 -25-50 150 v ol (mv) r l = 10ki to v dd /2 open-loop gain vs. frequency max44251 toc14 frequency (hz) open-loop gain (db) 1m100k 1k 10k 10 1001 0.1 10m 100m 160 180 140 120 100 80 60 40 20 0 -20 -40 -60 input voltage noise vs. frequency max44251 toc15 frequency (hz) input voltage noise (nv/hz) 10k 1k 100 5 10 15 20 25 30 0 10 100k input voltage 0.1hz to 10hz noise max44251 toc16 1s /div 0.2v/div input current noise vs. frequency max44251 toc17 frequency (hz) input current noise (pa/ hz) 1k 100 10 1 2 3 4 5 6 0 1 10k small-signal response max44251 toc18 frequency (hz) magnitude (db) 10m1m 10k 100k 100 1k 10 -16 -14 -12 -10 -8 -6 -4 -2 0 2 -18 1 100m v in = 100mv p-p max44251/max44252 20v??? maxim integrated 7
?() (v dd = 10v, v ss = 0v, outputs have r l = 10ki to v dd /2. t a = +25nc, unless otherwise specified.) magnitude (db) -45 -40 -35 -30 -25 -20 -15 -10 -5 0 5 -50 large-signal response max44251 toc19 frequency (hz) 1m100k 1k 10k 10 10010.1 100m10m v in = 2v p-p power-up time max44251 toc22 time (10s /div) 25s v dd = v ss = 0v v dd = 5v v ss = 5v voltage (1v/div) 0v 0v supply voltage (5v/div) v offset (10mv/div) 1k 100 10k stability vs. capacitive and resistive load in parallel with c l max44251 toc25 capacitive load (pf) resistive load (k i ) 10 20 30 40 50 60 70 80 90 100 0 stable unstable small-signal step response vs. time max44251 toc20 time (2s /div) a v = 1v/v v in = 100mv p-p input output voltage (100mv/div) total harmonic distortion vs. frequency max44251 toc23 frequency (hz) magnitude (db) 10k 1k -135 -130 -125 -120 -115 -110 -105 -100 -140 100 100k stability vs. capacitive and r iso in series with c load max44251 toc26 capacitive load (pf) r iso ( i ) 10k 1k 1 2 3 4 5 6 7 8 0 100 100k stable unstable large-signal step response vs. time max44251 toc21 time (2s /div) a v = 1v/v v in = 2v p-p input output voltage (1v/div) total harmonic distortion vs. input voltage max44251 toc24 input voltage (v) magnitude (db) 1.75 1.50 1.25 1.00 0.75 0.50 -120 -100 -80 -60 -40 -20 0 -140 0.25 2.00 v cc = 3.3v max44251/max44252 20v??? maxim integrated 8
max44251/max44252 20v??? ? sot 23 ma x soic 1 1 1 outa ?a 2 2 2 ina- ?a? 3 3 3 ina+ ?a?? 4 4 11 v ss ?? 5 5 5 inb+ ?b?? 6 6 6 inb- ?b? 7 7 7 outb ?b 8 8 4 v dd ?? 8 outc ?c 9 inc- ?c? 10 inc+ ?c?? 12 ind+ ?d?? 13 ind- ?d? 14 outd ?d top view ind+ v ss v dd 1 2 14 13 outd ind- ina- ina+ outa 3 4 12 11 inc- outc outb 51 0 inc+ inb+ inb- 6 7 9 8 + 14 soic max44252 1 2 3 4 8 7 6 5 v dd outb inb- inb+ v ss ina+ ina- outa 8 max + max44251 8 sot23 max44251 v ss 1 2 ina- ina+ outa 3 4 inb- inb+ 8 7 v dd outb 6 5 + maxim integrated 9
max44251/max44252 20v??? ?? max44251/max44252????? ?3 v???? ?????? ?1/f ? ic??6 v ? (?) ??1/f ?????? ?mosfet????? ???1/f ? ?(emi)????? ???? ? ic?emi????? ??emi ??????? ? ???? ic????1.15ma??2.7v 20v? 1.35v 10v?? ?? ic???????? ????????? ? ?????? ??1? adc? max44251/max44252??? ????adc?? ?adc????????1? ????????? 10v? max11211 ? 18 - adc?? ??????adc ??? ? max11211 ? adc2.7v3.6v??? 18???0.86mwm ax11211 100db50hz60hz ? maxim ? 1618 2024 - adc?????? ?????(1mw) ? max44251/max44252?? ??? ?max11211???adc? ? ?1. ? ??? 20v 20v 20v 3.3v 3v v dd micro processor v out 50r g 50r g r g v ref v dd v ss v in- v in+ c 1 buffer buffer max44251 max44251 max11211 max6126 max44251 r r 20v 1.5v buffer r r r 1 output maxim integrated 10
max44251/max44252 20v??? ? ????ic?adc???? ????????? ??2mv/v?? ?10v???20mv? ????????? ????????? ? ? ????5nv/ c?10 c ?? 50nv18?????0.5 ? lsb? ??13mv10v???? ??7 70v/v?????? ? ???? ic????????? ???2?ic???? ??v out ? = ? i load ? x ? r sense ? x ? r 2 /r 1 ?2. ? ?? ? + ??(pb)/rohs??? ?? process: bicmos ?? par t te mp ra nge p in - pa ck a ge to p mar k ma x 44251aka+ -40n c to +125n c 8 sot23 aerc max44251aua+ -40n c to +125n c 8 fmax ma x 44252asd+ -40n c to +125n c 14 soic v supply out i load r sense r 1 r 2 max44251 max44252 5 6 7 10 9 8 inb- inb+ v ss 1 2 8 7 v dd outb ina- ina+ outa top view 3 4 6 5 max44251 + ind+ v ss v dd inb+ 1 2 14 13 outd ind- ina- ina+ inb- outb outa 3 4 12 11 inc+ inc- outc max44252 + maxim integrated 11
max44251/max44252 20v??? ?? ?????(?)? china.maxim-ic.com/packages????+#- ?rohs?????????????rohs???? ? ? ?? 8 sot23 k8+5 21-0078 90-0176 8 fmax u8+1 21-0036 90-0092 14 soic s14m+5 21-0041 90-0096 maxim integrated 12
max44251/max44252 20v??? ??() ?????(?)? china.maxim-ic.com/packages????+#- ?rohs?????????????rohs???? maxim integrated 13
max44251/max44252 20v??? ??() ?????(?)? china.maxim-ic.com/packages????+#- ?rohs?????????????rohs???? maxim integrated 14
?? ? ? ? ?? 0 10/11 1 12/11 max44252 ? 5, ? 6, ? 11 max44251/max44252 20v??? ma xim ma xim ??????? ? max im ????????? ? ???(??)?????? maxim integrated 160 rio robles, san jose, ca 95134 usa 1-408-601-1000 1 5 ? 2011 maxim integrated maxim?maxim integratedmaxim integrated products, inc.?? maxim 8328 100083 ?800 810 0310 010-6211 5199 010-6211 5299

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