7.1 Overview

The LM7705 is a switched capacitor voltage inverter with a low-noise, −0.23-V fixed negative bias output. The part will operate over a supply voltage range of 3 V to 5.25 V. Applying a logical low level to the SD input will activate the part, and generate a fixed −0.23-V output voltage. The part can be disabled; the output is switched to ground level, by applying a logical high level to the SD input of the part.