Texas Instruments has introduced an operational amplifier (op-amp) combining ultra-high precision with the industry’s lowest supply current.
Boasting exceptional power-to-precision performance, the LPV821 zero-drift, nanopower op-amp is designed for use in precision applications such as wireless sensing nodes, home and factory automation equipment, and portable electronics.
Consuming only nanoamps of supply current, while providing the high-precision benefits of optimised offset, drift and 1/f noise (flicker noise), the LPV821 is beneficial for applications where both precision and low power are essential system needs, including industrial gas detectors, field transmitters and battery packs.
TI’s zero-drift technology delivers a low initial offset of 10 μV and an offset drift of 0,02 μV/°C, eliminating temperature drift and flicker noise, and enabling engineers to attain the highest DC precision and dynamic error correction. Additionally, self-calibration technology helps engineers save system development cost and speed time to market.
An input bias current of 7 pA and low flicker noise at 3.9 µVp-p enables operation with high-impedance sensors, delivering more accurate measurements in precision systems. Engineers can pair the LPV821 with the TLV3691 comparator or ADS7142 analog-to-digital converter to program a threshold that will automatically wake up a microcontroller, further reducing system power consumption.
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