LM2904D

TIGER ELECTRONIC CO.,LTD LM2904N/D L OW P OWER DUAL O PERAT IONAL A MPLIFIER L M 2904 DESCRIPTION T he L M 2904 c onsists of two independent, high gain, i nternally f requency c om p ensated operational a m plifiers which were designed specifically to o perate from a s ingle power supply o ver a w ide r ange o f voltages. Operation from s plit power supplies is a lso possible and the low power supply c urrent drain i s independent of the m a gnitude of the power supply v oltage. A pplication areas include transducer am p l i f i e r s , D IP-8 D C gain blocks and all the conventional op am p c ircuits which now can be m o re easily im plem ented i n single power supply s y stem s. For exam ple, the L M2904 c an be directly operated off 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 ±1 5V power su p p lies. SOP-8 LM2904D O utline Drawing LM2904N U NIQUE C HARACTERISTICS I n the linear m ode the input com m on-m ode voltage range includes ground and the o utput voltage can also swing to ground, even though operated from o nly a s ingle p ower s upply v oltage. T he unity gain cross frequency is tem p erature com p ensated. T he input bias current is also tem p erature com p ensated. A DVANTAGES T wo internally com p ensated op am ps. E lim inates need for dual supplies. A llows direct sensing near GND and V O U T a lso goes to GND. C om p atible with all form s of logic. P ower drain suitable for battery o peration. 1/8 LM2904N/D F EATURES I nternally frequency com p ensated for unity gain L arge dc voltage gain: 100 dB W ide bandwidth (unity g ain): 1 MHz (tem perature com p ensated) W ide power supply r ange: — S ingle supply : 3 V to 32V — o r dual supplies: ±1.5V to ±16V V ery l ow supply c urrent drain (500 µA)—essentially i ndependent of supply v oltage. L ow input offset voltage: 2 m V I nput com m on-m ode voltage range includes ground D ifferential input voltage range equal to the power supply v oltage L arge output voltage swing: 0V to V+- 1.5V B LOCK DIAGRAM A ND P IN CONNECTION 8 V+ OUTPUT A 1 INVERTING INPUT A 2 NON-INVERTING INPUT A 3 GND 4 A -+ B +7 OUTPUT B 6 INVERTING INPUT B 5 NON-INVERTING INPUT B A BSOLUTE MAXIMUM RATINGS ( Ta=25 ° C) C haracteristic S upply Vo ltage,V I nput Vo ltage P ower Dissipation (Note 1) D IP P ackage S OP P ackage + Va l u e 32 或 ±16 32 - 0.3~32 5 50 5 30 Continuous 50 - 20~+85 - 65~150 U nit V V V mW D if f erential Input Vo ltage O utput Short-Circuit to GND （ One Am plifier ） Note 2 ） （ （ V + ≤ 15V 、 Ta = 2 5 ℃ ） I nput Current （ V I N