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ZNBG3011

Part Number	ZNBG3011
Manufacturer	Zetex Semiconductors
Description	FET BIAS CONTROLLER AND POLARITY SWITCH
Published	Apr 17, 2005
Detailed Description	FET BIAS CONTROLLER AND POLARITY SWITCH ISSUE 1 - FEBRUARY 1998 DEVICE DESCRIPTION The ZNBG series of devices are design...
Datasheet	ZNBG3011 PDF File

Overview

FET BIAS CONTROLLER AND POLARITY SWITCH ISSUE 1 - FEBRUARY 1998 DEVICE DESCRIPTION The ZNBG series of devices are designed to meet the bias requirements of GaAs and HEMT FETs commonly used in satellite receiver LNBs, PMR cellular telephones etc.
with a minimum of external components.
With the addition of two capacitors and a resistor, the devices provide drain voltage and current control for three external grounded source FETs, generating the regulated negative rail required for FET gate biasing whilst operating from a single supply.
This negative bias, at -3 volts, can also be used to supply other external circuits.
The ZNBG3010/11 includes bias circuits to drive up to three external FETs.
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