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ADM8829 Datasheet Switched-Capacitor Voltage Inverter

Manufacturer: Analog Devices

General Description

The ADM8828/ADM8829 is a charge-pump voltage inverter which may be used to generate a negative supply from a positive input.

Input voltages ranging from +1.5 V to +5.5 V can be inverted into a negative –1.5 V to –5.5 V output supply.

This inverting scheme is ideal for generating a negative rail in single power-supply systems.

Overview

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Key Features

  • Inverts Input Supply Voltage 99% Voltage Conversion Efficiency 25 mA Output Current Shutdown Function Requires Only Two Capacitors 1 ␮F Capacitors 18 ⍀ Output Resistance +1.5 V to +5.5 V Input Range 600 ␮A Quiescent Current 20 nA Shutdown Current (ADM8828).