ZNBG4000 - FET Bias Controller

The ZNBG series of devices ZNBG4000 ZNBG4001 ZNBG6000 ZNBG6001 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 resistors the devices provide drain voltage and current control for a number of 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 ZNBG4000 1 and ZNBG6000 1 contain four and six bias stages respectively. In setting drain current the ZNBG4000 1 two resistors allows individual FET pair control to different levels, the ZNBG6000 1 two resistors split control between two and four FETs This allows the operating current of input FETs to be adjusted to minimise noise, whilst the following FET stages CAN separately be adjusted for maximum gain. The series also offers the choice of drain voltage to be set for the FETs the ZNBG4000 6000 gives 2.2 volts drain whilst the ZNBG4001 6001 gives 2 volts.
By Zetex Semiconductors plc.
ZNBG4000 's PackagesZNBG4000 's pdf datasheet

ZNBG4000 Pinout, Pinouts
ZNBG4000 pinout,Pin out
This is one package pinout of ZNBG4000,If you need more pinouts please download ZNBG4000's pdf datasheet.

ZNBG4000 Application circuits
ZNBG4000 circuits
This is one application circuit of ZNBG4000,If you need more circuits,please download ZNBG4000's pdf datasheet.

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