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MAX840

Maxim
Part Number MAX840
Manufacturer Maxim
Description Low-Noise / Regulated / -2V GaAsFET Bias
Published May 2, 2005
Detailed Description 19-0388; Rev 1; 3/96 UAL IT MAN TION K A ET U E L H A S EV TA WS DA FOLLO Low-Noise, Regulated, -2V GaAsFET Bias _____...
Datasheet PDF File MAX840 PDF File

MAX840
MAX840

Overview
19-0388; Rev 1; 3/96 UAL IT MAN TION K A ET U E L H A S EV TA WS DA FOLLO Low-Noise, Regulated, -2V GaAsFET Bias _______________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 external positive control voltage to set the negative output voltage.
Input voltage range for all the devices is 2.
5V to 10V, and output current is 4mA with VIN > 2.
7V.
These circuits can operate with small capacitors, as low as 0.
22µF.
An internal line...


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