Precision CMOS dual op-amp for low-power, high-impedance signal chains
The Texas Instruments LMC6062IM is a CMOS dual operational amplifier from the LMC® series, designed for precision low-power applications where input bias current must be minimized. The 0.01 pA typical input bias current is the headline parameter — it allows direct connection to high-source-impedance sensors without measurable offset drift from bias current.
Supply current and output drive — sizing the rail and load
Each amplifier draws 40 µA of supply current, so the dual package consumes 80 µA quiescent total. That is low enough to leave the part powered continuously in a battery-operated data logger. Output current is rated at 35 mA per channel, which comfortably drives an ADC reference input or a 2 kΩ load to within 100 mV of the rail. The 100 µV input offset voltage is a typical value. The CMOS input stage means the offset does not shift significantly with source resistance.
Lifecycle and sourcing note
Note that this variant is listed as RoHS non-compliant, so it is not suitable for new designs requiring RoHS exemption-free compliance — verify your assembly house's requirements before specifying.