AS324N AS324N low power quad operational amplifier general description the AS324N series consists of four independent, high gain, internally frequency compen- sated operational amplifiers which were designed specifically to operate from a single power supply over a wide range of voltages. operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage. application areas include transducer amplifiers, dc gain blocks and all the conventional op amp circuits which now can be more easily implemented in single power suplly systems. for example, the AS324N series can be directly operated off of the standard +5 v dc power supply voltage which is used in digital systems and will easily provide the required interface electronics without requiring the additional 15 v dc power supply. unique characteristics ? in the linear mode the input common-mode voltage range includes ground and the output voltage can also swing to ground, even though operated from only a single power supply voltage. ? the unity gain cross frequency is temperature compensated. ? the input bias current is also temperature compensated. advantages ? eliminated need for dual supplies. ? four internally compensated op amps in a single package. ? allows directly sensing near gnd and v out also goes to gnd. ? compatible with all forms of logic. ? power drain suitable for battery operation. features ? internally frequency compensated for unity gain. ? large dc voltage gain 100 db ? wide bandwidth (unity gain) 1 mhz (temperature compensated) ? wide power supply range: single supply 3 v dc to 32 v dc or dual supplies 1,5 v dc to 16 v dc ? very low supply current drain (700 a) - essentially independent of supply voltage. ? low input biasing current 45 na dc (temperature compensated) ? low input offset voltage 2 mv dc and offset current 5 na dc ? input common-mode voltage range includes ground. ? differential input voltage equal to the power supply voltage. ? large output voltage swing 0 v dc to v + - 1,5 v dc parameter conditions AS324N min typ max units short circuit to ground v + =15 v dc , t a =25 0 c4060ma dc input offset voltage 9 mv dc input offset voltage drift r s =0 om 7 v/ 0 c input bias current i in(+) - i in(-) , v cm =0 v 150 na dc input offset current drift r s =0 om 10 pa dc / 0 c input bias current i in(+) or i in(-) 40 500 na dc input common-mode voltage range v + =+30 v dc 0v + -2 v dc large signal v + =+15 v dc voltage gain (v 0 swing=1 v dc to 11 v dc ) r l >=2 kom 15 v/mv otput voltage v oh v + =+30 v dc , r l =2 kom 26 swing v dc r l >=10 kom 27 28 v ol v + =5 v dc , r l >=10 kom 5 20 mv dc output current v 0 =2 v dc source v in + =+1 v dc , v in - =0 v dc , v + =15 v dc 10 20 ma dc sink v in + =+1 v dc , v in - =0 v dc , v + =15 v dc 58 ? AS324N are manufactured in packages 14 dip plastic with 2,5 mm-pin spacing (2,54 mm by equivalent). alfa semiconductors alfa semiconductors page 1 ds9403 copyright ? 1996 a/s alfa page 4 ds9403 copyright ? 1996 a/s alfa
AS324N AS324N electrical characteristics v + = +5,0 v dc , unless otherwise stated parameter conditions AS324N min typ max units input offset voltage t a =25 0 c27mv dc i nput bias curren t i in(+) or i in(-) , v cm =0 v, t a =25 0 c 45 250 na dc input offset curren t i in(+) - i in(-) , v cm =0 v, t a =25 0 c 5 50 na dc input common-mode voltage range v + =30 v dc , t a =25 0 c0v + -1.5 v dc supply current over full temperature range r l = on all op amps v + =30 v 1.5 3 ma dc v + =5 v 0.7 1.2 large signal v + =15 v dc , r l >=2 kom voltage gain (v 0 =1 v dc to 11 v dc ), t a =25 0 c 25 100 v/mv common-mode dc, v cm =0 v to v + -1.5 v dc rejection ratio t a =25 0 c 6585db power supply dc, v + =5 v dc to 30 v dc rejection ratio t a =25 0 c 65 100db amplifier-to-amplifier f=1khz to 20 khz, t a =25 0 c coupling (input referred) -120 output current v in + =1 v dc , v in - =0 v dc , source v + =15 v dc , v 0 =2 v dc , t a =25 0 c20 40 ma dc sink v in - =1 v dc , v in + =0 v dc , v + =15 v dc , v 0 =2 v dc , t a =25 0 c10 20 v in + =1 v dc , v in - =0 v dc ,t a =25 0 c, v + =15 v dc , v 0 =200 mv dc 12 50 a dc absolute maximum ratings supply voltage, v + 32 v dc or 16 v dc differential input voltage 32 v dc input voltage -0,3 v dc to +32 v dc input current (v in <-0,3 v dc ) 50 ma power dissipation 1130 mw output short-circuit to gnd (one amplifier) v + <= 15 v dc and t a =25 0 c continuous operating temperature range 0 0 c to 70 0 c storage temperature range -65 0 c to +150 0 c lead temperature (soldering, 10 seconds) 260 0 c schematic diagram (each amplifier) alfa semiconductors alfa semiconductors page 3 ds9403 copyright ? 1996 a/s alfa page 2 ds9403 copyright ? 1996 a/s alfa dual-in-line packege connection diagram
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