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MAX844

GaAsFET Bias

MAX844 Features

* o Fixed -2V or Adjustable -0.5V to -9.4V Output at 4mA (MAX840) o 2.5V to 10V Input Voltage Range o Operate with Small Capacitors (as low as 0.22µF) o 1mVp-p Output Voltage Ripple o Charge-Pump Switching Frequency: 100kHz in Normal Operation 20kHz in Shutdown Mode (MAX844) o 1µA Max Logic-Level Shut

MAX844 General Description

The MAX840/MAX843/MAX844 low-noise, inverting charge-pump power supplies are ideal for biasing GaAsFETs in cellular telephone transmitter amplifiers. They operate with inputs down to 2.5V. The MAX840 offers both a -2V preset output and a -0.5V to -9.4V adjustable output. The MAX843/MAX844 use an ext.

MAX844 Datasheet (240.48 KB)

Preview of MAX844 PDF

Datasheet Details

Part number:

MAX844

Manufacturer:

Maxim

File Size:

240.48 KB

Description:

Gaasfet bias.

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MAX844 GaAsFET Bias Maxim

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