Data Sheet

ADL8141

USING RBIAS AS A FAST ENABLE AND DISABLE FUNCTION

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Rev. 0 | 20 of 22

The RBIAS pin can be used as a fast enable and disable control

input. In the schematic in Figure 73, an SPDT switch is used to

switch the voltage on the RBIAS resistor between 0 V and 2.5 V.

When the voltage on the RBIAS pin is equal to 0 V, IDQ reduces to

less than 1 mA with PIN set to −20 dBm. The response time of this

circuit is shown in Figure 74.

Figure 73. Fast Enable and Disable Using a 0 V to 2.5 V Pulse on the RBIAS

Resistor

Figure 74. On and/or Off Response of the RFOUT Envelope When the IN Pin

of the ADG719 Is Pulsed, POUT = 6 dBm at 19 GHz