Data Sheet

ADL8142

USING RBIAS AS A FAST ENABLE AND DISABLE FUNCTION

analog.com

Rev. B | 18 of 20

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

input. In the schematic in Figure 65, a single-pole, double throw

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 66.

Figure 65. Fast Enable and Disable Using a 0 V to 2.5 V Pulse on the RBIAS

Resistor

Figure 66. On and/or Off Response of the RF Output Envelope When the IN

Pin of the ADG719 Is Pulsed, POUT = 6 dBm at 27 GHz