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SGM8551 single-supply, single rail-to-rail i/o precision operational amplifier product description the SGM8551 is a single rail-to-rail input and output precision operational amplifier which has low input offset voltage, and bias current. it is guaranteed to operate from 2.5v to 5.5v single supply. the rail-to-rail input and outp ut swings provided by the SGM8551 make both high-side and low-side sensing easy. the combination of characteristics makes the SGM8551 good choices for temperature, position and pressure sensors, medical equipment and strain gauge amplifiers, or any other 2.5v to 5.5v application requiring precision and long term stability. the SGM8551 is specified for the extended industrial/ automotive (-40 to +125 ) temperature range. it is available in the green soic-8 and msop-8 packages. applications temperature measurements pressure sensors precision current sensing electronic scales strain gauge amplifiers medical instrumentation thermocouple amplifiers handheld test equipment features ? low offset voltage: 4 v (typ) ? rail-to-rail input and output swing ? 2.5v to 5.5v single supply operation ? voltage gain: 145db (typ) at +5v ? psrr: 110db (typ) ? cmrr: 105db (typ) ? ultra low input bias current: 10pa ? low supply current: 930 a (typ) ? overload recovery time: 60 s (at v s = +5v) ? no external capacitors required ? -40 to +125 operating temperature range ? available in green soic-8 and msop-8 packages pin configurations (top view) n.c. outa n.c. n.c. 1 2 3 4 -ina +ina -v s +v s n.c. = no connect 5 6 7 8 soic-8/msop-8 SGM8551 rev. a. 4 sg micro corp www.sg-micro.com
single-supply, single rail-to-rail i/o precision operational amplifier 2 SGM8551 sg micro corp www.sg-micro.com package/ordering information model order number package description package option marking information SGM8551xms8g/tr msop-8 tape and reel, 3000 SGM8551xms8 SGM8551 SGM8551xs8g/tr soic-8 tape and reel, 2500 SGM8551xs8 absolute maximum ratings supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6v input voltage . . . . . . . . . . . . . . . . . . . . . . . . . .-v s to (+v s ) + 0.1v differential input voltage . . . . . . . . . . . . . . . . . . . . . . . .-5v to 5v storage temperature range . . . . . . . . . . . . . . . -65 to +150 junction temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 operating temperature range. . . . . . . . . . . . . . -40 to +125 lead temperature (soldering 10 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260 esd susceptibility hbm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7000v mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400v note: stresses beyond those listed under ?absolute maximum ratings? may cause permanent damage to the device. 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 s pecifications is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. caution this integrated circuit can be damaged by esd if you don?t pay attention to esd protection. sgmicro recommends that all integrated circuits be handled with appropriate precautions. failure to observe proper handling and installation procedures can cause damage. esd damage can range from subtle performance degradation to complete device failure. precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. sgmicro reserves the right to make any change in circuit design, specification or other related things if necessary without notice at any time. please contact sgmicro sales office to get the latest datasheet.
single-supply, single rail-to-rail i/o precision operational amplifier 3 SGM8551 sg micro corp www.sg-micro.com electrical characteristics (v s = +5v, v cm = +2.5v, v o = +2.5v, t a = +25 , unless otherwise noted.) parameter conditions min typ max units input characteristics 4 20 input offset voltage (v os ) -40 t a +125 24 v input bias current (i b ) 10 pa input offset current (i os ) 5 pa input voltage range 0 5 v v cm = 0v to 5v 90 105 common mode rejection ratio (1) (cmrr) -40 t a +125 83 db r l = 10k ? , v o = 0.3v to 4.7v 100 145 large signal voltage gain (a vo ) -40 t a +125 97 db input offset voltage drift ( v os / t ) -40 t a +125 20 nv/ output characteristics r l = 100k ? to -v s 4.99 4.998 -40 t a +125 4.987 v r l = 10k ? to -v s 4.985 4.996 output voltage high (v oh ) -40 t a +125 4.98 v r l = 100k ? to +v s 2 10 -40 t a +125 13 mv r l = 10k ? to +v s 6 15 output voltage low (v ol ) -40 t a +125 20 mv v o = 2.5v, r l =10 ? to gnd 40 48 short circuit limit (i sc ) -40 t a +125 23 ma power supply v s = 2.5v to 5.5v 90 110 power supply rejection ratio (1) (psrr) -40 t a +125 80 db v o = +v s /2 930 1110 quiescent current (i q ) -40 t a +125 1760 a dynamic performance gain-bandwidth product (gbp) a v = +100 1.53 mhz slew rate (sr) a v = +1, r l = 10k ? , 2v output step 0.90 v/ s overload recovery time a v = -100, r l = 10k ? , v in = 200mv (ret to gnd) 0.06 ms noise performance voltage noise (e n p-p) 0.1hz to 10hz 0.80 v p-p voltage noise density (e n ) f = 1khz 47.5 nv/ h z note 1: psrr and cmrr are affected by the matchi ng between external gain-setting resistor ratios.
single-supply, single rail-to-rail i/o precision operational amplifier 4 SGM8551 sg micro corp www.sg-micro.com electrical characteristics (v s = +2.5v, v cm = +1.25v, v o = +1.25v, t a = +25 , unless otherwise noted.) parameter conditions min typ max units input characteristics 3 20 input offset voltage (v os ) -40 t a +125 24 v input bias current (i b ) 10 pa input offset current (i os ) 10 pa input voltage range 0 2.5 v v cm = 0v to 2.5v 90 105 common mode rejection ratio (1) (cmrr) -40 t a +125 81 db r l = 10k ? , v o = 0.3v to 2.4v 100 135 large signal voltage gain (a vo ) -40 t a +125 94 db input offset voltage drift ( v os / t ) -40 t a +125 20 nv/ output characteristics r l = 100k ? to -v s 2.49 2.499 -40 t a +125 2.488 v r l = 10k ? to -v s 2.485 2.498 output voltage high (v oh ) -40 t a +125 2.482 v r l = 100k ? to +v s 1 10 -40 t a +125 12 mv r l = 10k ? to +v s 3 15 output voltage low (v ol ) -40 t a +125 18 mv v o = 1.25v, r l =10 ? to gnd 20 28 short circuit limit (i sc ) -40 t a +125 15 ma power supply v s = 2.5v to 5.5v 90 110 power supply rejection ratio (1) (psrr) -40 t a +125 80 db v o = +v s /2 1000 1110 quiescent current (i q ) -40 t a +125 2090 a dynamic performance gain-bandwidth product (gbp) a v = +100 1.51 mhz slew rate (sr) a v = +1, r l = 10k ? , 2v output step 0.90 v/ s overload recovery time a v = -100, r l = 10k ? , v in = 200mv (ret to gnd) 0.03 ms noise performance voltage noise (e n p-p) 0.1hz to 10hz 0.95 v p-p voltage noise density (e n ) f = 1khz 53 nv/ h z note 1: psrr and cmrr are affected by the matchi ng between external gain-setting resistor ratios.
single-supply, single rail-to-rail i/o precision operational amplifier 5 SGM8551 sg micro corp www.sg-micro.com typical performance characteristics large signal transient response at +5v time (5s/div) v out (1v/div) c l = 300pf r l = 2k ? a v = +1 small signal transient response at +5v time (5s/div) v out (50mv/div) c l = 50pf r l = a v = +1 closed loop gain vs. frequency at +5v -40 -30 -20 -10 0 10 20 30 40 50 60 10 100 1000 10000 frequency (khz) closed loop gain (db) a v = +1 a v = -10 a v = -100 large signal transient response at +2.5v time (2s/div) v out (500mv/div) c l = 300pf r l = 2k ? a v = +1 small signal transient response at +2.5v time (5s/div) v out (50mv/div) c l = 50pf r l = a v = +1 closed loop gain vs. frequency at +2.5v -40 -30 -20 -10 0 10 20 30 40 50 60 10 100 1000 10000 frequency (khz) closed loop gain (db) a v = +1 a v = -10 a v = -100
single-supply, single rail-to-rail i/o precision operational amplifier 6 SGM8551 sg micro corp www.sg-micro.com typical performance characteristics positive overvoltage recovery time (20s/div) v sy = 2.5v v in = -200mv p-p (ret to gnd) c l = 0pf r l = 10k ? a v = -100 0v v in 0v v out 1v /div 200m v /div open loop gain, phase shift vs. frequency at +5v -40 -30 -20 -10 0 10 20 30 40 50 60 10 100 1000 10000 100000 frequency (khz) open loop gain (db) 0 24 48 72 96 120 phase shift (degrees) c l = 0pf r l = o p en loo p gain phase shift 0.1hz to 10hz noise at +5v time (10s/div) noise (2mv/div) a v = +10,000 negative overvoltage recovery time (50s/div) v sy = 2.5v v in = +200mv p-p (ret to gnd) c l = 0pf 0v v in 0v v out 1v /div 200mv /div r l = 10k ? a v = -100 open loop gain, phase shift vs. frequency at +2.5v -40 -30 -20 -10 0 10 20 30 40 50 60 10 100 1000 10000 100000 frequency (khz) open loop gain (db) 0 24 48 72 96 120 phase shift (degrees) c l = 0pf r l = open loop gain phase shift 0.1hz to 10hz noise at +2.5v time (10s/div) noise (2mv/div) a v = +10,000
single-supply, single rail-to-rail i/o precision operational amplifier 7 SGM8551 sg micro corp www.sg-micro.com typical performance characteristics voltage noise density at +5v from 0.1hz to 2.5khz 0 13 26 39 52 65 78 91 104 0 0.5 1 1.5 2 2.5 frequency (khz) e n (nv/ hz) r s = 0 ? voltage noise density at +5v from 0.1hz to 25khz 0 16 32 48 64 80 96 112 128 0 5 10 15 20 25 frequency (khz) e n (nv/ hz) r s = 0 ? psrr vs. frequency at 2.5v 0 10 20 30 40 50 60 70 80 90 100 0.1 1 10 100 1000 10000 frequency (khz) psrr (db) +psrr -psrr voltage noise density at +2.5v from 0.1hz to 2.5khz 0 13 26 39 52 65 78 91 104 0 0.5 1 1.5 2 2.5 frequency (khz) e n (nv/ hz) r s = 0 ? voltage noise density at +2.5v from 0.1hz to 25khz 0 16 32 48 64 80 96 112 128 0 5 10 15 20 25 frequency (khz) e n (nv/ hz) r s = 0 ? psrr vs. frequency at 1.25v 0 10 20 30 40 50 60 70 80 90 100 0.1 1 10 100 1000 10000 frequency (khz) psrr (db) +psrr -psrr
single-supply, single rail-to-rail i/o precision operational amplifier 8 SGM8551 sg micro corp www.sg-micro.com typical performance characteristics cmrr vs. frequency at +5v 0 20 40 60 80 100 0.1 1 10 100 1000 frequency (khz) cmrr (db) offset voltage production distribution at +5v 0 4 8 12 16 20 24 28 32 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 offset voltage ( v) percentage of amplifiers (%) v s = +5v v cm = 2.5v t a = +25 cmrr vs. frequency at +2.5v 0 20 40 60 80 100 0.1 1 10 100 1000 frequency (khz) cmrr (db) offset voltage production distribution at +2.5v 0 5 10 15 20 25 30 35 40 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 offset voltage ( v) percentage of amplifiers (%) v s = +2.5v v cm = 1.25v t a = +25
single-supply, single rail-to-rail i/o precision operational amplifier 9 SGM8551 sg micro corp www.sg-micro.com package outline dimensions msop-8 e1 e e d a1 l c a a2 b recommended land pattern (unit: mm) 1.02 0.41 0.65 4.8 dimensions in millimeters dimensions in inches symbol min max min max a 0.820 1.100 0.032 0.043 a1 0.020 0.150 0.001 0.006 a2 0.750 0.950 0.030 0.037 b 0.250 0.380 0.010 0.015 c 0.090 0.230 0.004 0.009 d 2.900 3.100 0.114 0.122 e 2.900 3.100 0.114 0.122 e1 4.750 5.050 0.187 0.199 e 0.650 bsc 0.026 bsc l 0.400 0.800 0.016 0.031 0 6 0 6
single-supply, single rail-to-rail i/o precision operational amplifier 10 SGM8551 sg micro corp www.sg-micro.com package outline dimensions soic-8 d e e1 e b a a2 a1 c l 1.27 0.6 2.2 5.2 recommended land pattern (unit: mm) dimensions in millimeters dimensions in inches symbol min max min max a 1.350 1.750 0.053 0.069 a1 0.100 0.250 0.004 0.010 a2 1.350 1.550 0.053 0.061 b 0.330 0.510 0.013 0.020 c 0.170 0.250 0.006 0.010 d 4.700 5.100 0.185 0.200 e 3.800 4.000 0.150 0.157 e1 5.800 6.200 0.228 0.244 e 1.27 bsc 0.050 bsc l 0.400 1.270 0.016 0.050 0 8 0 8
single-supply, single rail-to-rail i/o precision operational amplifier 11 SGM8551 sg micro corp www.sg-micro.com tape and reel information note: the picture is only for reference. please make the object as the standard. key parameter list of tape and reel package type reel diameter reel width w1 (mm) a0 (mm) b0 (mm) k0 (mm) p0 (mm) p1 (mm) p2 (mm) w (mm) pin1 quadrant soic-8 13 12.4 6.4 5.4 2.1 4.0 8.0 2.0 12.0 q1 msop-8 13 12.4 5.2 3.3 1.5 4.0 8.0 2.0 12.0 q1 reel width (w1) reel diameter reel dimensions tape dimensions direction of feed p2 p0 w p1 a0 k0 b0 q1 q2 q4 q3 q3 q4 q2 q1 q3 q4 q2 q1
single-supply, single rail-to-rail i/o precision operational amplifier 12 SGM8551 sg micro corp www.sg-micro.com carton box dimensions note: the picture is only for reference. please make the object as the standard. key parameter list of carton box reel type length (mm) width (mm) height (mm) pizza/carton 13 386 280 370 5

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