National Semiconductor LMC6042 CMOS Dual Micropower Operational Amplifier Data Sheet
Summary
This micropower dual operational amplifier is engineered for demanding, battery-powered systems requiring exceptional energy efficiency. It features ultra-low supply current consumption and single-supply operation while guaranteeing rail-to-rail output swing across a wide voltage range. The accompanying manual details its full electrical specifications—including high CMRR and low input leakage—making it ideal for engineers developing bio/transducer interfaces, field detectors, and remote monitoring instruments.
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LM ual M icropow er perational A plifier
August
LMC6042 CMOS Dual Micropower Operational Amplifier General Description Features
Ultra-low power consumption and low input-leakage current Low supply current: µA/Amp (typ)
are the hallmarks of the LMC6042. Providing input currents Operates from 4.5V to 15V single supply of only f A typical, the LMC6042 can operate from single Ultra low input current: f A (typ) supply, has output swing extending to each supply rail, and Rail-to-rail output swing an input voltage range that includes ground.
Input common-mode range includes ground
The LMC6042 is ideal for use in systems requiring ultra-low power consumption. In addition, the insensitivity to latch-up,
Applications
high output drive, and output swing to ground without requir-
Battery monitoring and power conditioning
ing external pull-down resistors make it ideal for
single-supply battery-powered systems. Photodiode and infrared detector preamplifier Silicon based transducer systems
Other applications for the LMC6042 include bar code reader
amplifiers, magnetic and electric field detectors, and Hand-held analytic instruments hand-held electrometers. p H probe buffer amplifier This device is built with National’s advanced Double-Poly Fire and smoke detection systems Silicon-Gate CMOS process. Charge amplifier for piezoelectric transducers
See the LMC6041 for single, and the LMC6044 for quad amplifier with these features.
Connection Diagram
8-Pin DIP/SO
DS011137-1
Ordering Information
Temperature Range NSC Transport
Package
Industrial Drawing Media
−40˚C to +85˚C
8-Pin LMC6042AIM M08A Rail Small Outline LMC6042IM Tape and Reel 8-Pin LMC6042AIN N08E Rail Molded DIP LMC6042IN
National Semiconductor Corporation DS011137 www.national.com
Page Summary Contents For National Semiconductor LMC6042 CMOS Dual Micropower Operational Amplifier Data Sheet
Manual Details
| Brand | National |
|---|---|
| Pages | 13 |
| File Size | 404.40 KB |
| Published | June 16, 2026 |
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Frequently Asked Questions
What is the typical power consumption of the LMC6042 operational amplifier?
The LMC6042 features very low supply current at 10 μA/Amp (typ), making it ideal for ultra-low power systems.
Can this amplifier operate on a single supply voltage?
Yes, it can operate from a single supply of only 2 fA typical input leakage current, ranging from 4.5V to 15V.
What are the recommended applications for the LMC6042?
It is ideal for battery monitoring, photodiode preamplifiers, and portable instruments like bar code readers or electrometers.
Does the LMC6042 provide rail-to-rail output swing?
Yes, the device supports a rail-to-rail output swing and has an input common-mode range that includes ground.