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sgm321/sgm358/sgm324 1mhz, 60a, rail -to - rail i/o cmos operational amplifiers march r sg micro corp www.sg - micro.com general description the sgm321 (single), sgm358 (dual) and sgm324 (quad) are low cost , rail - to - rail input and output voltage feedback amplifiers. they have a wide input common mode voltage range and output voltage swing, and take the minimum operating supp ly voltage down to 2.1v . t he maximum recommended supply voltage is 5.5v. all are specified over the extended - 40 to +85 temperature range. the sgm321/358/324 provide 1mhz bandwidth at a low current consumption of 60 a per amplifier. very low input bias currents of 10pa enable sgm321/358/324 to be used for integrators, photodiode amplifiers, and piezoelectric senso rs. rail - to - rail input and output are useful to designers for buffering asic in single - supply systems. applications for this series of amplifiers include safety monitoring, portable equipment, battery and power supply control, and signal conditioning and i nterfacing for transducers in very low power systems. the sgm321 is available in the green sot - 23- 5 and sc70 - 5 packages. the sgm358 comes in the green so ic - 8 , msop - 8 and dip - 8 packages. the sgm324 is offered in the green so ic - 14 and tssop - 14 packages. fe atures ? low cost ? rail - to - rail input and o utput 0.8mv typical v os ? unity gain stable ? gain - bandwidth product : 1mhz ? very low input bias current : 10 pa ? supply voltage range: 2.1 v to 5.5 v ? input voltage range: - 0.1v to +5.6v with v s = 5.5v ? low supply current: 60 a/ amplifier ? small packaging sgm321 available in sot - 23- 5 and sc70 - 5 sgm358 available in so ic - 8, msop - 8 and dip - 8 sgm324 available in so ic - 14 and tssop - 14 applications asic input or output amplifier sensor interface piezo e lectric transducer amplifier medical instrumentation mobile communication audio output portable systems smoke detectors notebook pc pcmcia c ards battery - powered e quipment dsp i nterface
1mhz, 60a, rail - to - rail i/o sgm321/sgm358/sgm324 cmos operational a mplifiers 2 march 201 7 sg micro corp www.sg - micro.com package/ordering information model package description specified temperature range ordering number pa ckage marking packing option sgm321 sc70 -5 -40 to +85 sgm321yc5/tr 321 tape and reel, 3000 sot -23-5 -40 to +85 sgm321yn5/tr 321 tape and reel, 3000 sot -23-5 -40 to +85 sgm321 b yn5/tr 321b tape and reel, 3000 sgm358 so ic -8 -40 to +85 sgm358ys/t r sgm358ys xxxxx tape and reel, 4000 msop -8 -40 to +85 sgm358yms/tr sgm358 yms xxxxx tape and reel, 3000 dip -8 -40 to +85 sgm358yp sgm358yp xxxxx 20 tube (1000pcs) sgm324 so ic -14 -40 to +85 sgm324ys14/tr sgm324ys14 xxxxx tape and reel, 2500 ts sop -14 -40 to +85 sgm324yts14/tr sgm324 xxxxx tape and reel, 3000 note: xxxxx = date code and vendor code. green (rohs & hsf): sg micro corp defines "green" to mean pb - free (rohs compatible) and free of halogen substances. if you have additional c omments or questions, please contact your sgmicro representative directly. absolute maximum ratings supply voltage, +v s to -v s ................................................ 6 v common mode input voltage .................................................... (-v s ) - 0. 3 v to (+v s ) + 0. 3 v package thermal resistance @ t a = + 25 sc70 - 5, ja .............................................................. 333 /w sot -23-5, ja .......................................................... 190 /w so ic - 8, ja .............................................................. 125 /w msop - 8, ja ............................................................ 216 /w storage temperature range ........................ -65 to +150 junction temperature ................................................. +1 5 0 lead temperature (soldering 10sec) ......................... +260 esd susceptibility hbm ............................................................................. 4000v mm ................................................................................ .400v recommended operating conditions operating temperature rang e ....................... -4 0 to +85 overstress caution stresses beyond those listed may cause permanent damage to the device. functional operation of the device at these or any other conditions beyond those indicated in the operational section of the specification is not impl ied. exposure to absolute maximum rating conditions for extended periods may affect reliability. esd sensitivity caution this integrated circuit can be damaged by esd if you dont pay attention to esd protection. sgmicro recommends that all integrated cir cuits 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 s usceptible to damage because very small parametric changes could cause the device not to meet its published specifications. disclaimer sg micro corp reserves the right to make any change in circuit design, specification or other related things if necessar y without notice at any time.
1mhz, 60a, rail - to - rail i/o sgm321/sgm358/sgm324 cmos operational a mplifiers 3 march 201 7 sg micro corp www.sg - micro.com pin configuration s sgm321yn5 sgm321yc5 (top view) sgm321byn5 (top view) + v s - in 3 4 5 1 2 - v s + in out +v s -in 3 4 5 1 2 -v s out +in sot sot sgm324 (top view) sgm358 (top view) 10 11 12 13 14 1 2 3 4 5 outa -ina +ina -v s +v s -ind +ind 6 7 9 8 -inb +inb -inc outb outc +inc outd outa outb + inb + v s 5 6 7 8 1 2 3 4 - ina + ina - v s - inb soic - 8/msop - 8/dip -8 tssop - 14/soic - 14
1mhz, 60a, rail - to - rail i/o sgm321/sgm358/sgm324 cmos operational a mplifiers 4 march 201 7 sg micro corp www.sg - micro.com electrical characteristics (at v s = +5v, r l = 100 k connected to v s /2, and v out = v s /2, unless otherwise noted . ) parameter symbol conditions sgm321/358/324 typ min/max over temperature +25 units min/max input characteristics input offset voltage v os v cm = v s /2 0.8 5 5.6 mv max input bias current i b 10 p a typ input offset current i os 10 p a typ input common mode voltage range v cm v s = 5.5v - 0.1 to +5.6 v typ common mode rejection ratio cmrr v s = 5.5v, v cm = - 0.1v to 4v 70 62 62 db min v s = 5.5v, v cm = - 0.1v to 5.6v 68 56 55 open - loop voltage gain a ol r l = 5k, v o = +0.1v to +4.9v 80 70 70 db min r l = 100k, v o = +0.0 3 5v to +4.9 6 5v 84 80 80 in put offset voltage drift v os /t 2.7 v / typ output characteristics output voltage swing from rail v oh r l = 100k 4.997 4.980 4.970 v min v ol r l = 100k 5 20 30 mv max v oh r l = 10k 4.99 2 4.970 4.960 v min v ol r l = 10k 8 30 40 mv max output c urrent i source r l = 10 to v s /2 84 60 45 ma min i sink 7 5 60 45 power supply operating voltage range 2.1 2.5 v min 5.5 5.5 v max power supply rejection ratio psrr v s = +2.5v to +5.5v, v cm = +0.5v 82 60 58 db min quiescent current/amplifie r i q 60 80 86 a max dynamic performance (c l = 100pf) gain - bandwidth product gbp 1 m hz typ slew rate sr g = +1 , 2v output step 0.52 v/ s typ settling time to 0.1% t s g = +1, 2v output step 5.3 s typ overload recovery time v in gain = v s 2.6 s typ noise performance voltage noise density e n f = 1khz 27 nv/ hz typ f = 10khz 20 nv/ hz typ
1mhz, 60a, rail - to - rail i/o sgm321/sgm358/sgm324 cmos operational a mplifiers 5 march 201 7 sg micro corp www.sg - micro.com typical performance characteristics at t a = +25 , v s = +5v, and r l = 100 k connected to v s /2, unless other wise noted. sma ll- signal step response time ( 2s/div ) small-signal overshoot vs. load capacitance 0 10 20 30 40 50 60 10 100 1000 10000 load capacitance (pf) small-signal overshoot (%) g = -5 r fb = 100k s/div ) small-signal overshoot vs. load capacitance 0 10 20 30 40 50 60 10 100 1000 10000 load capacitance (pf) small-signal overshoot (%) g = +1 r l = 100k 5k 100k supply current (a) g = +1 c l = 1 0 0 p f r l = 100k
1mhz, 60a, rail - to - rail i/o sgm321/sgm358/sgm324 cmos operational a mplifiers 6 march 201 7 sg micro corp www.sg - micro.com typical performance cha racteristics (continued) at t a = +25 , v s = +5v, and r l = 100 k connected to v s /2, unless otherwise noted. cmrr and psrr vs. frequency 0 10 20 30 40 50 60 70 80 90 100 0.01 0.1 1 10 100 1000 10000 frequency (khz) cmrr, psrr (db cmrr psrr output voltage vs. output current 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 10 20 30 40 50 60 output current (ma) output voltage (v) -55 ) supply current (a) hz ) output voltage vs. output current 0 1 2 3 4 5 6 0 20 40 60 80 100 120 140 160 output current (ma) output voltage (v) sourcing current sinking current v s = 5v -55 -55 25 25 135 135 ) openCloop gain (db) r l = 100k 5k
1mhz, 60a, rail - to - rail i/o sgm321/sgm358/sgm324 cmos operational a mplifiers 7 march 201 7 sg micro corp www.sg - micro.com typical performance characteristics (continued) at t a = +25 , v s = +5v, and r l = 100 k connected to v s /2, unless otherwise noted. common mode rejection ratio vs. temperature 60 70 80 90 100 110 120 -50 -25 0 25 50 75 100 125 150 temperature ( ) cmrr (db) -v s < v cm < (+v s ) -v s < v cm < (+v s ) - 1.5v overload recovery time time (2s/div) pow er supply rejection ratio vs. temperature 60 70 80 90 100 110 120 -50 -25 0 25 50 75 100 125 150 temperature ( ) psrr (db) short-circuit current vs. supply voltage -20 0 20 40 60 80 100 120 0 1 2 3 4 5 6 7 supply voltage (v) short-circuit current (ma) v s = 5v g = - 5 v in = 500 mv 2.5v 0v 500mv 0v
1mhz, 60a, rail - to - rail i/o sgm321/sgm358/sgm324 cmos operational a mplifiers 8 march 201 7 sg micro corp www.sg - micro.com application notes driving capacitive loads the sgm3 21/sgm358/sgm324 can directly drive 250pf in unity - gain without oscillation. the unity - gain follower (buffer) is the most sensitive confi guration to capacitive loading. direct capacitive loading reduces the phase margin of amplifiers and this results in ringing or even oscillation. applications that require greater capacitive driv ing capability should use an isolation resistor between the o utput and the capacitive load like the circuit in figure 1 . the isolation resistor r iso and the load capacitor c l form a zero to increase stability. the bigger the r iso resistor value, the more stable v out will be. note that this method results in a loss of gain accuracy because r iso forms a voltage divider with the r load . v in v out sgm321 c l r iso figure 1 . indirectly driving heavy capacitive load an improv ed circuit is shown in figure 2 . it provides dc accuracy as well as ac stability. r f provides the dc a ccuracy by connecting the inverting input with the output . c f and r iso serve to counteract the loss of phase margin by feeding the high frequency component of the output signal back to the amplifiers inverting input, thereby preserving phase margin in the overall feedback loop. v in v out sgm 321 c l r iso r l r f c f figure 2 . indirectly driving heavy capacitive load with dc accuracy for no n - buffer configuration, there are two other ways to increase the phase margin: (a) by increasing the amplifiers closed - loop gain or (b) by placing a capacitor in parallel with the feedback resistor to counteract the parasitic capacitance associated with inverting node. power - supply bypassing and layout the sgm3 21/sgm358/sgm324 can operate from either a single +2. 1 v to +5.5v supply or dual 1. 0 5v to 2.75v supplies. for single - supply operation, bypass t he power supply + v s with a 0.1f ceramic capacitor which should be placed close to the + v s pin. for dual - supply operation, both the + v s and the - v s supplies should be bypassed to ground with separate 0.1f ceramic capacitors. 2.2f tantalum capacitor can b e added for better performance. sgm 321 v v + v s - v s g v 10 f 0 . 1 f sgm 321 + v s vn vp - v s v out 10 f 0 . 1 f 10 f 0 . 1 f figure 3 . amp lifier with bypass capacitors
1mhz, 60a, rail - to - rail i/o sgm321/sgm358/sgm324 cmos operational a mplifiers 9 march 201 7 sg micro corp www.sg - micro.com typical application circuits differential amplifier the circuit shown in figure 4 performs the difference function. if the resistor ratios are equal to (r 4 / r 3 = r 2 / r 1 ), then v out = (v p - v n ) r 2 / r 1 + v ref . vn vp v out sgm321 v ef 1 2 3 4 figure 4 . dif ferential amplifier instrumentation amplifier the circuit in figure 5 performs the same function as that in figure 4 but with a high input impedance. vn vp sgm321 v ef 1 2 3 4 v sgm321 sgm321 figure 5 . instrumentation amplifier low - pass active filter the low - pass filter s hown in figure 6 has a dc gain of ( - r 2 / r 1 ) and the - 3db corner frequency is 1/2 r 2 c. make sure the filter bandwidth is within the bandwidth of the amplifier. the l arge values of feedback resistors can couple with parasitic capacit ance and cause undesired effects such as ringing or oscillation in high - speed amplifiers. keep resistor value s as low as possible and consistent with output loading consideration. v in v out sgm321 1 2 3 = 1 // 2 c figure 6 . low - pass active filter
package informatio n tx00033.000 sg micro corp www.sg - micro.com package outline dimensions sot - 23- 5 symbol dimensions in millimeters dimensions in inches 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 1.90 0 bsc 0.075 bsc l 0.300 0.600 0.012 0.024 0 8 0 8 e e1 e e1 b d a1 a2 a c l recommended land pattern (unit: mm) 1.90 2.59 0.99 0.69 0.95
package informatio n tx00043.000 sg micro corp www.sg - micro.com package outline dimensions sc70 - 5 symbol dimensions in millimeters dimensions in inches min max min max a 0.900 1.100 0.035 0.043 a1 0.000 0.100 0.000 0.004 a2 0.900 1.000 0.035 0.039 b 0.150 0.350 0.006 0.014 c 0.080 0.150 0.003 0.006 d 2.000 2.200 0.079 0.087 e 1.150 1.350 0.045 0.053 e1 2.150 2.450 0.085 0.096 e 0.65 typ 0.026 typ e1 1.300 bsc 0.051 bsc l 0.525 ref 0.021 ref l1 0.260 0.460 0.010 0.018 0 8 0 8 e e1 e1 e d b a a2 a1 l c recommended land pattern (unit: mm) 1.9 0.65 1.3 0.75 0.4
package informatio n tx00010.000 sg micro corp www.sg - micro.com package outline dimensions soic - 8 symbol dimensions in millimeters dimensions in inches 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 0.1 7 0 0.250 0.00 6 0.010 d 4.7 0 0 5. 1 00 0.18 5 0. 200 e 3.800 4.000 0.150 0.157 e1 5.800 6. 2 00 0.228 0.24 4 e 1.27 bsc 0.050 bsc l 0.400 1.270 0.016 0.050 0 8 0 8 d e e1 e b a a2 a1 c l recommended land pattern (unit: mm)
package informatio n tx00014.000 sg micro corp www.sg - micro.com package outline dimensions msop - 8 symbol dimensions in millimeters dimensions in inches 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 0.65 0 bsc 0.026 bsc l 0.400 0.800 0.016 0.031 0 6 0 6 e1 e e d a1 l c a a2 recommended land pattern (unit: mm) 1.02 0.41 0.65 4.8
package informatio n tx00011.001 sg micro corp www.sg - micro.com package outline dimensions soic - 14 symbol dimensions in millimeters dimensions in inches min max min max a 1.35 1.75 0.053 0.069 a1 0.10 0.25 0.004 0.010 a2 1.25 1.65 0.049 0.065 a3 0.55 0.75 0.022 0.030 b 0.36 0.49 0.014 0.019 d 8.53 8.73 0.336 0.344 e 5.80 6.20 0.228 0.244 e1 3.80 4.00 0.150 0.157 e 1.27 bsc 0.050 bsc l 0.45 0.80 0.018 0. 0 3 2 l1 1.04 ref 0.040 ref l2 0.25 bsc 0.01 bsc r 0.07 0.003 r1 0.07 0.003 h 0.30 0.50 0.012 0.020 0 8 0 8 recommended land pattern (unit: mm) d e1 e
package informatio n tx00019.001 sg micro corp www.sg - micro.com package outline dimensions tssop - 14 symbol dimensions in millimeters dimensions in inches min max min max a 1. 2 00 0.04 7 a1 0.0 5 0 0.150 0.00 2 0.006 a2 0.800 1.0 5 0 0.031 0.0 41 b 0.190 0.300 0.007 0.012 c 0.090 0.200 0.004 0.008 d 4 . 860 5 .100 0.191 0.201 e 4.300 4.500 0.169 0.177 e1 6.250 6.550 0.246 0.258 e 0.65 0 bsc 0.026 bsc l 0.500 0.700 0.02 0.028 h 0.25 typ 0.01 typ 1 7 1 7 e e1 d b a a1 a2 recommended land pattern (unit: mm) 5.94 0.42 1.78 0.65
package informatio n tx00051.000 sg micro corp www.sg - micro.com package outline dimensions dip - 8 symbol dimensions in millimeters dimensions in inches min max min max a 3.710 4.310 0.146 0.170 a1 0.510 0.020 a2 3.200 3.600 0.126 0.142 b 0.380 0.570 0.015 0.022 b 1 1.524 bsc 0.060 bsc c 0.204 0.360 0.008 0.014 d 9.000 9.400 0.354 0.370 e 6.200 6.600 0.244 0.260 e1 7.320 7.920 0.288 0.312 e 2.540 bsc 0.100 bsc l 3.000 3.600 0.118 0.142 e2 8.400 9.000 0.331 0.354 e b1 b a a2 a1 l e d e1 e2 c
package informatio n tx 1 0 000.0 00 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 dd0001 sot -23-5 7 9.5 3.2 0 3.2 0 1.4 0 4.0 4.0 2.0 8.0 q3 sc70 - 5 7 9.5 2.25 2.55 1.20 4.0 4.0 2.0 8.0 q3 soic -8 13 12.4 6.4 0 5.4 0 2.1 0 4.0 8.0 2.0 12.0 q1 msop -8 13 12.4 5.2 0 3.3 0 1.5 0 4.0 8.0 2.0 12.0 q1 soic -14 13 16.4 6.6 0 9.3 0 2.1 0 4.0 8.0 2.0 16.0 q1 tssop -14 13 12.4 6.95 5.6 0 1.2 0 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
package informatio n tx 2 0 000 .000 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 dd0002 7 (option) 368 227 224 8 7 442 410 224 18 13 386 280 370 5

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