Op-amps designed for high-resolution measurements at low power levels

Linear Technology/Analog Devices LTC2068x Operational Amplifiers are intended for high-resolution measurements at low power levels.

These amplifiers function at 1.7V to 5.25V operating voltage range and 10µA maximum supply current. The amplifiers' self-calibrating circuitry offers 5µV low input offset (maximum), and 0.02µV/C offset drift. The shutdown mode is optimised to minimise power consumption in duty-cycled applications and provide low charge loss throughout power-up that decreases total system power. These amplifiers produce low input bias current that provides for the application of high-value power-saving resistors in the feedback network.

The amplifiers are offered in 14-lead TSSOP and 16-lead 3mm x 3mm QFN packages.

Typical applications include gas detection, signal conditioning in wireless mesh networks, portable instrumentation systems, low-power sensor conditioning, temperature measurement, medical instrumentation, energy harvesting applications, and low power current sensing.