1 gm358 low power dual operational amplifers gm358 v2.03 www.gammamicro.com.tw description the gm358 consists of two high gain, internally frequency compensated operational amplifiers which are designed to operated from a single power supply over a wide range of voltages. operation from split power supplies is also available. the gm358 feature low power drain, a common mode input voltage range extending to gnd/vee. the gm358 is equivalent to one-half of the gm324. application areas inclu de transducer amplifiers, dc gain blocks and all the conventional op-amp circuits which now can be more easily implemented in single power supply systems. for example, the gm358 can be directly operated of the standard +5v power supply voltage which is used in digital systems and will easily provide the required interface electronics without requiring the additional 15v power supplies. the gm358 is available in sop-8 and dip-8 packages. features ? true differential input stage ? internally frequency compensated for unity gain ? single supple operation: 3v to 40v ? wide bandwidth (unity gain, temperature compensated): 1 mhz ? short circuit protected outputs ? low input bias current ? common mode range extends to negative supply ? single and split supply operation typical application circuits r1 r2 gain = 1+ (r2/r1) v in v out
2 gm358 v 2.03 gm358 low power dual operational amplifers marking information and pin conf igurations (top view) ? pb free so8 dip8 a: assembly / test site code y: year ww: week marking information and pin co nfigurations (top view) ? green so8 dip8 g: green product a: assembly / test site code y: year ww: week 7. out p ut b 8. v cc 2. input a - 1. output a 6. input b - 5. input b + 4. gnd 3. input a + gm358 ayww gm358 ayww 7. out p ut b 8. v cc 2. input a - 1. output a 6. input b - 5. input b + 4. gnd 3. input a + 7. out p ut b 8. v cc 2. input a - 1. output a 6. input b - 5. input b + 4. gnd 3. input a + gm358g ayww gm358g ayww 7. out p ut b 8. v cc 2. input a - 1. output a 6. input b - 5. input b + 4. gnd 3. input a +
3 gm358 low power dual operational amplifers gm358 v2.03 ordering information ? pb free product ordering number package shipping gm358d8t dip-8 60 units / tube gm358s8t sop-8 100 units / tube gm358s8r sop-8 2,500 units / tape & reel ordering information ? green product ordering number package shipping GM358D8TG dip-8 60 units / tube gm358s8tg sop-8 100 units / tube gm358s8rg sop-8 2,500 units / tape & reel
4 gm358 v 2.03 gm358 low power dual operational amplifers absolute maximum ratings parameter symbol ratings units v cc 32 supply voltage v cc , v ee 16 v input differential voltage range (note 1) v idr 32 v input common mode voltage range (note 2) v icr =0.3 to 32 v output short circuit duration t sc continuous - junction temperature t j 150 c operating ambient temperature range t a 0 to 70 c storage temperature - 65 to 150 c lead temperature (soldering 10 sec.) 260 c esd tolerance ? human body mode 2,000 v note 1: split power supplies note 2: for supply less 40v, the absolute maximum input range is equal to the supply voltage block diagram v in + v in - v out v cc v in +
5 gm358 low power dual operational amplifers gm358 v2.03 electrical characteristics (v cc = 5v, at specified free-air temperature, unless otherwise specified) parameter symbol condition min typ max unit t a = 25c 3 7 input offset voltage v io v cc = 5v to max v ic = v icr min v o = 1.4v full range 9 mv average temperature coefficient of input offset voltage v io full range 7 v/c t a = 25c 2 50 input offest current i io full range 150 na average temperature coefficient of input offset current i o full range 10 pa/c t a = 25c -20 -250 input bias current i ib v o =1.4v full range -500 na t a = 25c 0 to v cc -1.5v common-mode input voltage range v icr v cc = 5v to max full range 0 to v cc -2.0v v r l = 2k t a = 25c v cc -1.5v - - v cc = max, r l = 2k full range 26 high-level output voltage v oh v cc = max, r l = 10k full range 27 28 v high-level output voltage v ol r l = 10k full range 5 20 mv t a = 25c 25 100 large-signal differential voltage amplification a vd v cc = 15v, v o = 1v to 11v r l > 2k full range 15 v/mv common mode rejection ratio cmrr v cc = 5v to max v ic = v icr min t a = 25c 65 80 db supply voltage rejection ratio k svr v cc = 5v to max t a = 25c 65 100 db crosstalk attenuation v o1 /v o2 f = 1khz to 20khz t a = 25c 120 db t a = 25c -20 -30 v cc = 15v, v id = 1v, v o = 0v full range -10 t a = 25c 10 20 v cc = 15v, v id = -1v, v o = 15v full range 5 ma output current i o v id = -1v, v o = 200mv full range 12 30 a short-circuit output current i os v cc at 5v, gnd at -5v, v o = 0v t a = 25c 40 60 ma v o = 2.5v, no load full range 0.7 1.2 supply current (two amplifiers) i cc v cc = max, v o = 0.5v cc , no load full range 1 2 ma * all characteristics are measured under open loop conditions with zero common-mode input voltage unless otherwise specified. "max" v cc for testing purposes is 30v.
6 gm358 v 2.03 gm358 low power dual operational amplifers typical performance characteristics 120 100 80 60 40 20 0 ? 20 1.0 10 100 1.0k 10k 100k 1.0m f - frequency (hz) figure 1. large-signal open loop voltage gain a vol - o pen loop vol t age range (db) v cc = 15v v ee = gnd t a = 25 c 100k f? frequency (hz) 14 12 10 8.0 6.0 4.0 2.0 0 1.0 10k 1m figure 2. large - signal frequency response v in 7v dc v cc = 15v v ee = gnd r l = 2k r f = 100k t a = 25 c 100k 20k 1k - v o ? output swing (v p-p ) 0 450 400 350 300 250 200 0 1.0 2.0 3.0 40 5.0 6.0 figure 3. small signal v oltage follower pulse response (noninverting) v cc = 30 t a = 25 c c l = 50pf v o ?output voltage (mv) 500 550 50 p f - v o v in input output 2.4 2.1 1.8 1.5 1.2 0.9 0.6 v cc , power supply voltage (v) 0.3 0 0 5 .0 figure 4. power supply current v ersus power supp l y voltage ? t a = 25 c i cc ?power supply current (ma) 20 25 30 35 40 v cc i cc + 90 80 70 figure 5. input bias current versus supp l y voltage v cc , power supply voltage (v) 0 2 .0 i ib ?input bias current (na) 4.0 6.0 8.0 10 12 14 16 18 20
7 gm358 low power dual operational amplifers gm358 v2.03 application information fig.1 wien bridge oscillator fig. 2 high impedance differential amplifier fig. 3 comparator with hysteresis fig. 4 multiple feedback bandpass filter fig. 5 current monitor fig. 6 voltage follower r r1 ar1 br1 r1/c r1/c r e1 e2 e o e o = c (1+a+b) (e2 - e1) v ref v in v o r2 r1 v inl = (v ol ?v ref ) (r1/(r1+r2)) v inh = ( v o h ? v ref ) ( r1/ ( r1+r2 )) 500k v o c r r c 10k v ref 5k v o v ref r2 r1 c c r3 c o = 10c v in v in v o v in r1 r2 100 r3 1k rl v o v l
8 gm358 v 2.03 gm358 low power dual operational amplifers package outline dimensions ? so 8 (0.356 - 0.508) (0.406 - 0.270) 0.016 - 0.050 d 0.189 - 0.197 (4.800 - 5.004) seating plan 0.014 - 0.020 0.150 - 0.157 (3.810 - 3.988) 0.008 - 0.010 (0.203 - 0.254) 8.0 max 0.053 - 0.059 (1.346 - 1.753) 0.004 - 0.010 0.228 - 0.244 (5.791 - 6.198) 0.050 (1.270) typ (0.012 - 0.254) package outline dimensions ? dip 8 0.300 - 0.320 (7.620 - 8.128) 0.045 +/- 0.015 (1.143 +/- 0.183) 0.250 +/- 0.005 (6.350 +/- 0.127) 0.370 - 0.400 (9.474 - 10.150) 0.06 (1.524) 0.145 - 0.200 (3.683 - 5.080) 0.125 - 0.140 (3.175 - 3.556) 0.108 +/- 0.003 (0.457 +/- 0.076) 0.100 +/- 0.010 (2.540 +/- 0.254) j 0.009 - 0.010 (0.299 - 0.381) 95 +/- 5
9 gm358 low power dual operational amplifers gm358 v2.03 6 8 10 ordering number g m 358 s8 r g apm gamma micro circuit type package type s8: so 8 d8: dip 8 shipping type r: taping & reel t: tube blank :pb-free g :green note: pb-free products: ? rohs compliant and compatible with the cu rrent require-ments of ipc/jedec j-std-020. ? suitable for use in pb-free soldering processes with 100% matte tin (sn) plating. green products: ? lead-free (rohs compliant) ? halogen free(br or cl does not exceed 900ppm by weight in homogeneous material and total of br and cl does not exceed 1500ppm by weight)
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