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SGM8941/2 1.5mhz, rail-to-rail input and output operational amplifiers product description the SGM8941 and sgm8942 are high-performance cmos operational amplifiers optimized for low supply operation. these amplifiers are designed to operate on single supplies from 1.8v to 5.5v. applications include sensor amplification and signal conditioning in battery-powered systems. the SGM8941 and sgm8942 offer excellent cmrr without the crossover distortion associated with traditional complimentary inpu t stages. this results in excellent linearity performance. the input common mode range includes both the negative and positive supplies. the SGM8941/2 provide excellent overall performance. they exhibit low noise and offset, making these devices an excellent choice for high quality, low voltage or battery powered systems. the SGM8941 single is available in green sot-23-5 and soic-8 packages. the sgm8942 dual is available in green soic-8 and msop-8 packages. they are specified over the extended -40 to +85 temperature range. features ? rail-to-rail input and output ? low noise: 38nv/ h z ? supply voltage range: 1.8v to 5.5v ? low input offset voltage: 0.15mv (typ) ? gain-bandwidth product: 1.5mhz ? slew rate: 0.8v/ s ? low supply current: 120 a/amplifier (typ) ? small packaging: SGM8941 available in sot-23-5 and soic-8 packages sgm8942 available in msop-8 and soic-8 packages applications data acquisition process control active filters test equipment mobile phone audio processing video processing headphone amplifier portable equipment broadband communications rev. a sg micro corp www.sg-micro.com
1.5mhz, rail-to-rail input and output operational amplifiers 2 SGM8941/2 sg micro corp www.sg-micro.com package/ordering information model order number package description package option marking information SGM8941yn5g/tr sot-23-5 tape and reel, 3000 sbcxx SGM8941 SGM8941ys8g/tr soic-8 tape and reel, 2500 sgm 8941ys8 xxxxx sgm8942yms8g/tr msop-8 tape and reel, 3000 sgm8942 yms8 xxxxx sgm8942 sgm8942ys8g/tr soic-8 tape and reel, 2500 sgm 8942ys8 xxxxx note: xx = date code. xxxxx = date code and vendor code. marking information for example: sbcca (2012, january) sbc x x date code - year ("a" = 2010, "b" = 2011 ) date code - month ("a" = jan. "b" = feb. "l" = dec.) chip i.d. absolute maximum ratings supply voltage, +v s to -v s .....................................................6v input common mode voltage range ..........................................................(-v s ) - 0.1v to (+v s ) + 0.1v storage temperature range..............................-65 to +150 junction temperature .......................................................150 operating temperature range .................. ......... -40 to +85 lead temperature (soldering 10sec) ...........................................................................................260 esd susceptibility hbm.................... ..................... ...................... ............. ......8000v 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.
1.5mhz, rail-to-rail input and output operational amplifiers 3 SGM8941/2 sg micro corp www.sg-micro.com pin configurations (top view) +v s -in 1 2 3 4 5 -v s +in SGM8941 sot-23-5 out + - 1 2 3 4 5 6 7 8 +v s SGM8941 soic-8 nc nc = no connect -in +in -v s nc nc out + - outa outb +inb +v s 1 2 3 4 5 6 7 8 -ina +ina -v s -inb sgm8942 soic-8/msop-8 + - - +
1.5mhz, rail-to-rail input and output operational amplifiers 4 SGM8941/2 sg micro corp www.sg-micro.com electrical char acteristics: v s = +5v (at t a = +25 , v out = v s /2, unless otherwise noted.) parameter conditions min typ max units dc performance v cm = v s /2 0.15 0.9 input offset voltage (v os ) -40 t a +85 1.6 mv input bias current (i b ) 3 pa input offset current (i os ) 3 pa input offset voltage drift v cm = v s /2 3 v/ r l = 2k ? , v out = 0.2v to 4.8v 79 88 -40 t a +85 76 r l = 10k ? , v out = 0.1v to 4.9v 80 90 open-loop voltage gain (a ol ) -40 t a +85 77 db input characteristics input common mode voltage range (v cm ) -0.1 5.1 v v cm = -0.1v to 5.1v 74 90 common mode rejection ratio (cmrr) -40 t a +85 71 db output characteristics r l = 2k ? 75 90 -40 t a +85 110 mv r l = 10k ? 17 35 output voltage swing from rail -40 t a +85 55 mv r l = 10 ? to v s /2 26.5 35.0 output short-circuit current (i sc ) -40 t a +85 19.0 ma power supply i out = 0ma 120 178 quiescent current (per amplifier) -40 t a +85 205 a v s = +1.8v to +5.5v, v cm = 0.5v 77 85 power supply rejection ratio (psrr) -40 t a +85 72 db dynamic performance (1) gain-bandwidth product (gbp) c l = 100pf, r l = 2k ? 1.5 mhz slew rate (sr) v out = 2v pp , a v = 1 0.8 v/ s crosstalk f = 1khz 110 db settling time to 0.1% (t s ) v out = 200mv pp , f = 1khz, a v = 1, c l = 100pf, r l = 2k ? 2 s overload recovery time r l = 2k ? , a v = -50 3.5 s noise/distortion performance input voltage noise (e n ) f = 1khz 38 nv/ z
1.5mhz, rail-to-rail input and output operational amplifiers 5 SGM8941/2 sg micro corp www.sg-micro.com electrical char acteristics: v s = +1.8v (at t a = +25 , v out = v s /2, unless otherwise noted.) parameter conditions min typ max units dc performance v cm = v s /2 0.22 0.9 input offset voltage (v os ) -40 t a +85 1.55 mv input bias current (i b ) 3 pa input offset current (i os ) 3 pa input offset voltage drift v cm = v s /2 3.4 v/ r l = 2k ? , v out = 0.2v to 1.6v 76 88 -40 t a +85 73 r l = 10k ? , v out = 0.1v to 1.7v 83 105 open-loop voltage gain (a ol ) -40 t a +85 80 db input characteristics input common mode voltage range (v cm ) -0.1 1.9 v v cm = -0.1v to 1.9v 69 85 common mode rejection ratio (cmrr) -40 t a +85 66 db output characteristics r l = 2k ? 42 62 -40 t a +85 72 mv r l = 10k ? 9 25 output voltage swing from rail -40 t a +85 45 mv r l = 10 ? to v s /2 2.0 5.0 output short-circuit current (i sc ) -40 t a +85 1.1 ma power supply i out = 0ma 105 168 quiescent current (per amplifier) -40 t a +85 200 a dynamic performance (1) gain-bandwidth product (gbp) c l = 100pf, r l = 2k ? 1.4 mhz slew rate (sr) v out = 1v pp , a v = 1 0.8 v/ s crosstalk f = 1khz 110 db settling time to 0.1% (t s ) v out = 200mv pp , f = 1khz, a v = 1, c l = 100pf, r l = 2k ? 2 s overload recovery time r l = 2k ? , a v = -50 2.5 s noise/distortion performance input voltage noise (e n ) f = 1khz 36 nv/ z note 1: correct power supply bypassing is very important for optimizing SGM8941/2 performance. a 0.1f and a 10f capacitors are always used to bypass v s pin of SGM8941/2. please place these two capacitors as close to the SGM8941/2 v s pin as possible. a large ground plane is also needed to ensure optimum performance.
1.5mhz, rail-to-rail input and output operational amplifiers 6 SGM8941/2 sg micro corp www.sg-micro.com typical performance characteristics at t a = +25 , v s = +5v, unless otherwise noted. small signal step response time (2 s/div) output voltage (50mv/div) r l = 2k ? c l = 100pf a v = 1 positive overload recovery time time (10s/div) v s = 2.5v v in = -100mv p-p (ret to gnd) c l = 0pf 0v v in 0v v out 1v /div 100mv /div r l = 2k ? a v = -50 input voltage noise spectral density vs. frequency 0 50 100 150 200 250 300 350 400 0246810 frequency (khz) voltage noise (nv/ hz) .1 large signal step response time (2 s/div) output voltage (500mv/div) r l = 2k ? c l = 100pf a v = 1 negative overload recovery time time (5s/div) v s = 2.5v v in = +100mv p-p (ret to gnd) c l = 0pf 0v v in 0v v out 1v /div 100mv /div r l = 2k ? a v = -50 quiescent current vs. temperature 70 80 90 100 110 120 130 140 150 -40 -15 10 35 60 85 temperature ( ) quiescent current/amplifier ( a) v s = 1.8v v s = 3v v s = 5v
1.5mhz, rail-to-rail input and output operational amplifiers 7 SGM8941/2 sg micro corp www.sg-micro.com typical performance characteristics at t a = +25 , v s = +5v, unless otherwise noted. common mode rejection ratio vs. temperature 90 95 100 105 110 115 -40 -15 10 35 60 85 temperature ( ) cmrr (db) -v s < v cm < +v s open-loop voltage gain vs. temperature 70 75 80 85 90 95 100 -40 -15 10 35 60 85 temperature ( ) open?loop voltage gain (db) r l = 10k ? r l = 2k ? offset voltage production distribution 0 5 10 15 20 25 30 35 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 offset voltage (mv) percentage of amplifiers (%) 16000 samples 1 production lot power supply rejection ratio vs. temperature 80 82 84 86 88 90 -40 -15 10 35 60 85 temperature ( ) psrr (db) quiescent current and short-circuit current vs. supply voltage 60 70 80 90 100 110 120 130 1.522.533.544.555.5 supply voltage (v) i sc i q 0 20 30 10 40 50 short-circuit current (ma) 60 quiescent current/amplifier ( a) 70
1.5mhz, rail-to-rail input and output operational amplifiers 8 SGM8941/2 sg micro corp www.sg-micro.com package outline dimensions sot-23-5 e e1 e e1 b d a1 a2 a c l 0.2 recommended land pattern (unit: mm) 1.90 2.59 0.99 0.69 0.95 dimensions in millimeters dimensions in inches symbol min max min max a 1.050 1.250 0.041 0.049 a1 0.000 0.100 0.000 0.004 a2 1.050 1.150 0.041 0.045 b 0.300 0.500 0.012 0.020 c 0.100 0.200 0.004 0.008 d 2.820 3.020 0.111 0.119 e 1.500 1.700 0.059 0.067 e1 2.650 2.950 0.104 0.116 e 0.950 bsc 0.037 bsc e1 1.900 bsc 0.075 bsc l 0.300 0.600 0.012 0.024 0 8 0 8
1.5mhz, rail-to-rail input and output operational amplifiers 9 SGM8941/2 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
1.5mhz, rail-to-rail input and output operational amplifiers 10 SGM8941/2 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
1.5mhz, rail-to-rail input and output operational amplifiers 11 SGM8941/2 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 sot-23-5 7?? 9.5 3.17 3.23 1.37 4.0 4.0 2.0 8.0 q3 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
1.5mhz, rail-to-rail input and output operational amplifiers 12 SGM8941/2 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 7? (option) 368 227 224 8 7? 448 410 224 18 13? 385 379 280 5

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