ZNBG4000

ZNBG4000 ZNBG4001

ZNBG6000 ZNBG6001

TYPICAL APPLICATION CIRCUIT

APPLICATIONS INFORMATION

The above is a partial application circuit for the ZNBG series showing all external components

required for appropriate biasing. The bias circuits are unconditionally stable over the full

temperature range with the associated FETs and gate and drain capacitors in circuit.

allowed to affect other external circuits which may be sensitive to RF interference. They also

serve to suppress any potential RF feedthrough between stages via the ZNBG device. These

capacitors are required for all stages used. Values of 10nF and 4.7nF respectively are

recommended however this is design dependent and any value between 1nF and 100nF could

be used.

negative bias voltage is generated on-chip using an internal oscillator. The required value of

-3 volts. Although this generator is intended purely to bias the external FETs, it can be used to

shunted to ground by a single calibration resistor of half normal value.

If any bias control circuit is not required, its related drain and gate connections may be left open

circuit without affecting the operation of the remaining bias circuits. If all FETs associated with

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