The LM392M consists of 2 independent building block circuits. One is a high gain, internally frequency compensated operational amplifier, and the other is a precision voltage comparator. Both the operational amplifier and the voltage comparator have been specifically designed to operate 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 circuits. Both circuits can be operated directly from the standard 5 VDC 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 LM392M extremely useful in the design of portable equipment.
Wide power supply voltage range
Low supply current drain-essentially independent of supply voltage: 600 ľA
Low input biasing current: 50 nA
Low input offset voltage: 2 mV
Low input offset current: 5 nA
Input common-mode voltage range includes ground
Differential input voltage range equal to the power supply voltage
Eliminates need for dual power supplies
An internally compensated op amp and a precision comparator in the same package
Allows sensing at or near ground
Power drain suitable for battery operation
Datasheet Available:National LM392M
SOIC 8 package. Manufactured by National.