Datasheet Details
Part number:
MAX844, MAX843
Manufacturer:
Maxim
File Size:
240.48 KB
Description:
Gaasfet bias.
Note:
This datasheet PDF includes multiple part numbers: MAX844, MAX843.
Please refer to the document for exact specifications by model.
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 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 Distributors
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