OPA835 & OPA836 Ultra Low-Power Op-Amps Texas Instruments OPA835 and OPA836 Ultra Low-Power Op-Amps feature single ultra-low power, rail-to-rail output, and negative rail input. These voltage-feedback operational amplifiers are designed to operate over a power supply of 2.5V to 5.5V. The TI OPA835 consumes only 250µA per channel and a unity gain bandwidth of 56MHz while the OPA836 consumes only 1mA per channel and a unity gain bandwidth of 205MHz. These TI op-amps provide an industry-leading power-to-performance ratio for rail-to-rail amplifiers. The high-frequency performance and low-power consumption provide performance versus power not attainable in comparable devices. That performance, coupled with a power savings mode to reduce the current to <,1.5µA, makes these TI devices an attractive solution for high-frequency amplifiers in battery-powered applications.