Electronics Weekly
“With exceptional power-to-precision performance, the LPV821 zero-drift, nanopower op amp enables engineers to attain the highest DC precision, while consuming 60 percent less power than competitive zero-drift devices.,” says TI.
The LPV821 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 optimized offset, drift and 1/f noise (flicker noise), the LPV821 is suitable for applications where both precision and low power are essential system needs, including industrial gas detectors, field transmitters and battery packs.
With A supply current of 650 nA, the LPV821 extends battery lifetimes and enables lower power budgets in precision systems than competitive zero-drift devices.
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.
Self-calibration technology helps engineers saves development cost and time.
Nanopower consumption enables always-on applications such as continuous and blood glucose monitoring, and other electrochemical cell applications. Additionally, the low supply current decreases the external circuitry required to turn the amplifier on and off.
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.
