20µA op-amp provides 30 µV precision

March 25, 2015 // By Graham Prophet
LT6023 is a dual 3V to 30V low power operational amplifier, featuring 30 µV maximum input offset voltage and 60 µsec settling to 0.01%. Linear’s slew enhancement circuitry results in a fast, clean output step response with low power consumption.

Specially designed input circuitry maintains high impedance, which minimises current spikes associated with fast steps for input steps up to 5V. Together these features make the LT6023 suitable for portable high precision instruments, multiplexed data acquisition systems, and DAC buffer applications.

The LT6023-1 includes a shutdown mode, which reduces the supply current to less than 3 µA when the amplifier is not active. Enable time of 480 µsec and fast slew rate combine to provide power-efficient operation in duty-cycled applications.

Fully specified over the -40°C to 85°C and -40°C to 125°C temperature ranges, the LT6023 is available in MSOP-8 and 3 x 3 mm DFN packages. Prices start at $1.85 (1,000).

Linear Technology; www.linear.com/product/LT6023

Features: LT6023

30 µV max input offset voltage (MSOP package)

Excellent slew rate to power consumption ratio

1 V/µsec slew rate (10V step)

20 µA max supply current

3 nA max input bias current

3V to 30V supply range

Output swings rail-to-rail

-40°C to 125°C specified temperature range

3 µA max shutdown mode (LT6023-1)

8-lead MSOP & 3 x 3 mm DFN Packages