TI Introduces Precision Nanopower Operational Amplifiers

In a recent accouncement, Texas Instruments (TI) introduced what it’s said is the industry’s first precision nanopower operational amplifiers (op amps). The LPV811 and LPV812 consume quiescent current as low as 320 nA and are part of a family of four new ultra-low-power op amps.

This results in about 60 percent lower power consumption than other precision op amps and offset voltage as low as 300 µV, allows this new family of op amps to extend battery and sensor life for building automation, wired and wireless sensor nodes, and wearables.

Key features and benefits of the LPV811 family:  

Low power consumption: leading quiescent current without the use of duty cycling enables more energy-efficient 4- to 20-mA loop systems, extend battery life and reduce battery replacement costs

High precision: With a precision offset voltage as low as 300 µV and nanopower current consumption, the LPV811 and LPV812 help detect low concentrations of environmental gases and increase two-lead electrochemical sensor life and sensitivity

Low-voltage operation: Operating with a single-supply voltage as low as 1.6 V, these op amps maintain continuous performance under low-voltage battery conditions

High electromagnetic interference (EMI) immunity: An input rejection ratio greater than 80 dB in the 500-MHz to 1-GHz frequency range reduces the need for external filtering components

Package, availability and pricing

These new devices in TI's ultra-low-power op amp portfolio are available with 1,000-unit quantities and pricing between $.44 and $.95 per unit, depending on the specific unit’s capabilities. The LPV811 family is the latest addition to TI’s growing portfolio of ultra-low-power op amps that offers a leading combination of power, efficiency and accuracy.

Low power is part of the underlying secret to successful IoT. We look forward to seeing how these op amps progress.