CMOS Dual Micropower Operational Amplifier - LMC6042


CMOS Dual Micropower Operational Amplifier

Recommended alternative parts

  • LMC6462  -  Improved Bandwidth, Supply Current, Offset Voltage And Output Current.


Ultra-low power consumption and low input-leakage current are the hallmarks of the LMC6042. Providing input currents of only 2 fA typical, the LMC6042 can operate from a single supply, has output swing extending to each supply rail, and an input voltage range that includes ground.

The LMC6042 is ideal for use in systems requiring ultra-low power consumption. In addition, the insensitivity to latch-up, high output drive, and output swing to ground without requiring external pull-down resistors make it ideal for single-supply battery-powered systems.

Other applications for the LMC6042 include bar code reader amplifiers, magnetic and electric field detectors, and hand-held electrometers.

This device is built with TI's advanced Double-Poly Silicon-Gate CMOS process.

See the LMC6041 for a single, and the LMC6044 for a quad amplifier with these features.


  • Low Supply Current:  10 μA/Amp (typ)
  • Operates from 4.5V to 15V Single Supply
  • Ultra Low Input Current: 2 fA (typ)
  • Rail-to-Rail Output Swing
  • Input Common-Mode Range Includes Ground

All trademarks are the property of their respective owners.

View more

Parametrics Compare all products in Precision Amplifier

Number of Channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
GBW (Typ) (MHz)
Slew Rate (Typ) (V/us)
Vos (Offset Voltage @ 25C) (Max) (mV)
Iq per channel (Typ) (mA)
Vn at 1kHz (Typ) (nV/rtHz)
Offset Drift (Typ) (uV/C)
IIB (Max) (pA)
Io (Typ) (mA)
CMRR (Typ) (dB)
Additional Features
Operating Temperature Range (C)
Approx. Price (US$)
LMC6042 LMC6442
2     2    
4.5     1.8    
15.5     11    
0.1     0.01    
0.02     0.0041    
In to V-
In to V-
3     3    
0.01     0.00095    
83     170    
1.3     0.4    
0.02     0.05    
21     0.9    
75     92    
CMOS     CMOS    
-40 to 85     -40 to 85    
1.09 | 1ku     0.87 | 1ku    

Related end equipment

  • Battery Monitoring and Power Conditioning
  • Photodiode and Infrared Detector Preamplifier
  • Silicon Based Transducer Systems
  • Hand-Held Analytic Instruments
  • pH Probe Buffer Amplifier
  • Fire and Smoke Detection Systems
  • Charge Amplifier for Piezoelectric Transducers

Featured tools and software

WEBENCH® Designer LMC6042

Amplifier Topology
Desired Power Supply Voltage
Positive Supply (Vcc):  V
Negative Supply (Vee):  V
Allowed Power Supply(Vcc-Vee) = 4.5 to 15.5 V
Desired Input and Output Requirements
  Min Max
Vin  V  V
Vout  V  V
Minimum Temperature = -40.0 °C
Maximum Temperature = 85.0 °C