LM392 - LM392 Low Power Operational Amplifier/Voltage...

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LM392 Low Power Operational Amplifier/Voltage Comparator General Description The LM392 series consists of 2 independent building block circuits. One is a high gain, internally frequency compen- sated operational amplifier, and the other is a precision voltage comparator. Both the operational amplifier and the voltage comparator have been specifically designed to op- erate from a single power supply over a wide range of voltages. Both circuits have input stages which will common- mode input down to ground when operating from a single power supply. Operation from split power supplies is also possible and the low power supply current is independent of the magnitude of the supply voltage. Application areas include transducer amplifier with pulse shaper, DC gain block with level detector, VCO, as well as all conventional operational amplifier or voltage comparator cir- cuits. Both circuits can be operated directly from the stan- dard 5 V DC power supply voltage used in digital systems, and the output of the comparator will interface directly with either TTL or CMOS logic. In addition, the low power drain makes the LM392 extremely useful in the design of portable equipment. Advantages n Eliminates need for dual power supplies n An internally compensated op amp and a precision comparator in the same package n Allows sensing at or near ground n Power drain suitable for battery operation n Pin-out is the same as both the LM358 dual op amp and the LM393 dual comparator Features n Wide power supply voltage range Single supply: 3V to 32V Dual supply: ±1.5V to ±16V n Low supply current drain—essentially independent of supply voltage: 600 μA n Low input biasing current: 50 nA n Low input offset voltage: 2 mV n Low input offset current: 5 nA n Input common-mode voltage range includes ground n Differential input voltage range equal to the power supply voltage ADDITIONAL OP AMP FEATURES n Internally frequency compensated for unity gain n Large DC voltage gain: 100 dB n Wide bandwidth (unity gain): 1 MHz n Large output voltage swing: 0V to V + ² 1.5V ADDITIONAL COMPARATOR FEATURES n Low output saturation voltage: 250 mV at 4 mA n Output voltage compatible with all types of logic systems Connection Diagram (Amplifier A = Comparator) (Amplifier B = Operational Amplifier) Dual-In-Line Package 00779301 (Top View) Order Number LM392M or LM392MX See NS Package Number M08A Order Number LM392N See NS Package Number N08E August 2000 LM392 Low Power Operational Amplifier/Voltage Comparator © 2004 National Semiconductor Corporation DS007793 www.national.com
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Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.
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LM392 - LM392 Low Power Operational Amplifier/Voltage...

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