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LM7705 Datasheet Low-Noise Negative Bias Generator

Manufacturer: Texas Instruments

General Description

The LM7705 device is a switched capacitor voltage inverter with a low noise, −0.23 V fixed negative voltage regulator.

This device is designed to be used with low voltage amplifiers to enable the amplifiers output to swing to zero volts.

The −0.23 V is used to supply the negative supply pin of an amplifier while maintaining less then 5.5 V across the amplifier.

Overview

Product Folder Order Now Technical Documents Tools & Software Support & Community LM7705 SNVS420D – NOVEMBER 2008 – REVISED MAY 2018 LM7705 Low-Noise Negative Bias Generator.

Key Features

  • 1 Regulated Output Voltage.
  • 0.232 V.
  • Output Voltage Tolerance 5%.
  • Output Voltage Ripple 4 mVPP.
  • Supply Voltage 3 V to 5.25 V.
  • Conversion Efficiency Up to 98%.
  • Quiescent Current 78 µA.
  • Shutdown Current 20 nA.
  • Turnon Time 500 µs.
  • Operating Temperature Range.
  • 40°C to 125°C.
  • 8-Pin VSSOP Package 2.