gm324 low power quad operational amplifers gm324 v1.01 1 www.gammamicro.com.tw - in p ut 4 out p ut 4 input 4 gnd input 3 input 3 output 3 14 13 12 11 10 9 8 1 2 34 5 6 7 - in p ut 1 + in p ut 1 out p ut 1 v cc in p ut 2 in p ut 2 out p ut 2 connection diagram description the gm324, a quad internal frequency compensated operational amplifiers with true differential inputs, which operate from a single power supply over a wide range of voltages. they have several distinct advantages over standard operational amplifier types in single supply applications. the quad amplifier can operate at supply voltages as low as 3.0v or as high as 32v with extremely low quiescent current (on a single amplifier basis). the common mode input range includes negative supply, thereby eliminating the necessity for external biasing components in many applications. the output voltage range also includes negative power supply voltage. 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 gm324 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 gm324 is available in dip-14 and sop-14 packages. features ? internal frequency compensated for unity gain ? large dc voltage gain 100 db ? wide bandwidth (unity gain) 1mhz (temperature compenstated) ? power supply range: single supply 3v to 32v ? very low supply current drain (700 a)- essentially independent of supply voltage ? low input biasing current 45 na (temperature compensated) ? low input offset voltage 2 mv and offset current: 5 na load regulation 0.4% max. ? input common-mode voltage range includes ground ? differential input voltage range equal to the power supply voltage ? large output voltage swing 0v to v cc - 1.5v
gm324 v1.01 2 gm324 low power quad operational amplifers marking information and pin configurations (top view) so14 and dip14 a: assembly / test site code y: year ww: week gm324 ayww 1. out p ut 1 2. input 1 - 3. input 1 + 4. v cc 5. input 2 + 6. input 2 - 7. output 2 14. out p ut 4 13. input 4 - 12. input 4 + 11. gnd 10. input 3 + 9. input 3 - 8. output 3
gm324 low power quad operational amplifers gm324 v1.01 3 ordering information ordering number package shipping gm324s14t so14 50 units/tube gm324s14r so14 2500 units/reel GM324D14T dip14 25 units/tube absolute maximum ratings parameter ratings units supply voltage 16 or 32 v differential input voltage 32 v input current 50 ma input voltage -0.3 to +32 v power dissipation 800 mw operating temperature range -40 to 125 j storage temperature - 65 to 150 j lead temperature (soldering 10 sec.) 260 j block diagram v in + v in - v out v cc
gm324 v1.01 4 gm324 low power quad operational amplifers electrical characteristics (v cc = 5v, at specified free-air temperature, unless otherwise specified) parameter symbol condition min typ max unit t a = 25 j 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 = 25 j 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 = 25 j -20 -250 input bias current i ib v o =1.4v full range -500 na t a = 25 j 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 = 25 j 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 low-level output voltage v ol r l = 10k full range 5 20 mv t a = 25 j 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 = 25 j 65 80 db supply voltage rejection ratio k svr v cc = 5v to max t a = 25 j 65 100 db crosstalk attenuation v o1 /v o2 f = 1khz to 20khz t a = 25 j 120 db t a = 25 j -20 -30 v cc = 15v, v id = 1v, v o = 0v full range -10 t a = 25 j 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 = 25 j 40 60 ma v o = 2.5v, no load full range 1.5 2.4 supply current (four amplifiers) i cc v cc = max, v o = 0.5v cc , no load full range 1.1 3 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. full range is 0c to 70c.
gm324 low power quad operational amplifers gm324 v1.01 5 15 10 positive 5 o o 5 10 15 v + or v - power supply voltage (v dc ) figure 1. input voltage range v i n - input voltage (v dc ) negative 90 80 70 60 50 40 30 20 10 0 -55 -35 -15 5 25 45 65 85 105 125 t a - temperature (c) figure 2. input current i b - input current (na dc ) v cm = 0v dc v + = +15v dc v + = +5v dc v + = +30v dc 160 120 80 40 0 0 10 20 30 40 v + - supply voltage (v dc ) figure 4. voltage gain a vol - voltage gain (db) r l = 20k r l = 2k 4 v + i d 3 2 1 0 0 10 20 30 v + - supply voltage (v dc ) fi g ure 3. su pp l y current i d - supply current drain(ma dc ) m a + t a = -55c t a = 0c to +125c - 140 v + 120 v in 100 v + /2 80 60 40 20 o 1.0 10 100 1.0k 10 k 100 k 1.0m f - frequency (hz) figure 5. open loop frequency response a vol - voltage gain (db) 10m 0.1f v+ = 10 to 15 v dc & -55c < t a < +125c v + = 30 v dc & -55c < t a < +125c + - 120 100 80 60 40 20 buffer 0 100 1k 10k 100k f- fre q uenc y ( hz ) 1m figure 6. common mode rejection ratio cmrr- common- mode re j ection ratio ( db ) +15v -15v 1k 100 1k 1k 1k v o typical performance characteristics
gm324 v1.01 6 gm324 low power quad operational amplifers 4 3 2 1 o 3 2 1 0 0 10 t ? time ( s) 30 40 figure 7. voltage follower pulse res p onse v in @ input volta g e ( v ) v o @ o utput volta g e ( v ) r l < 20k v + = 15v dc 20 8 7 6 5 4 3 2 1 0.001 0.01 0.1 1 10 100 figure 10. output characteristics current sourcing v ? - o utput voltage referenced to v + (v dc ) v + v ? i o + +v + /2 i o + source current (ma dc ) independent of v t a = +25c + - 15 10 5 20 1k 2k 0 1k 10k 100k 1m figure 9. large signal frequency response v o - o utput swing (v p-p ) 100k f? frequency (hz) 15v dc + 7v dc v in v o - + 500 450 e o e in 400 350 300 1 2 3 4 5 6 7 8 250 0 e o @ o utput voltage (mv) 50pf figure 8. voltage follower pulse response (small signal) t ? time ( s) t a = 25c v + =30v dc output input + - 90 80 70 60 50 40 30 20 10 0 -55 -35 -15 5 25 45 65 85 105 125 t a - temperature (c) figure 12. current limiting i o + - o utput current (m a dc ) i o + - + 10 1 0.1 0.01 0.001 0.01 0.1 1 10 100 i o ? output sink current (ma dc ) figure 11. output characteristics current sinking v o @ o utput voltage (v dc ) v + i o - +v + /2 t a = 25c v o v + = + 5v dc v + = + 15v dc v + = + 30v dc - + typical performance characteristics (continued)
gm324 low power quad operational amplifers gm324 v1.01 7 package outline dimensions ? so 14 seating plan 0.335 - 0.344 (8.509 - 8.738) 0.228 - 0.244 (5.791 - 6.198) 0.014 - 0.020 0.050 typ. (0.356 - 0.508) (1.270) (3.810 - 3.988) 0.008 - 0.010 (0.,203 - 0.254) 0.150 - 0.157 8 max 0.053 - 0.069 (1.346 - 1.753) typ. 0.014 (0.356) package outline dimensions ? dip 14 0.018 +/- 0.003 (0.457 +/- 0.076) 14 1 0.785 (19.939) 0.060 +/- 0.005 (1.524 +/- 0.127) max 0.098 (2.489) max both ends 0.100 +/- 0.010 (2.540 +/- 0.254) 0.008 - 0.012 (0.203 - 0.305) 10 max 8 7 0.220 - 0.310 (5.588 - 7.874) 0.200 (5.080) max 0.150 (3.810) min (7.366 - 8.128) 0.290 - 0.320
gm324 v1.01 8 gm324 low power quad operational amplifers 1 ordering number g m 324 s14 r a pm gamma micro circuit type package type s14: so 14 d14: dip 14 shipping type r: taping & reel t: tube
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