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Dual micropower op amp boasts 30μV input offset voltage

31 Mar 2015  | Susan Nordyk

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Linear Technology has introduced a dual micropower op amp that promises to offer an input offset voltage of 30μV maximum and settles to 0.01 per cent in 60μs. Geared for multiplexed data-acquisition systems and precision signal processing, the LT6023 features proprietary slew-enhancement circuitry that yields a fast, clean output step response with low power consumption, the company noted.

Specially designed input circuitry maintains high impedance, which minimises current spikes associated with fast steps for input steps up to 5V. Slew rate is 1V/μs, while maximum supply current is 20μA/amplifier. The LT6023 also includes a shutdown mode that reduces supply current to less than 3μA when the part is not active. An enable time of 480μs and a fast slew rate combine to provide power-efficient operation in duty-cycled applications.


The low quiescent current of the LT6023 along with its ability to operate on supplies as low as 3V make it useful in portable systems, added Linear Tech. Moreover, other applications of the device include precision signal processing, DAC amplifiers, multiplexed ADC applications, low power portable systems and low power wireless sensor networks.

The LT6023 operates from a supply voltage of 3V to 30V. It is specified over temperature ranges of -40°C to 85°C and -40°C to 125°C and is offered in MSOP-8 and 3mm x 3mm DFN packages. Prices start at $1.85 each in lots of 1000 units.

LT6023 block diagram

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