ADL8121ACPZN-R7 datasheet(21/22 Pages) AD

No. de pieza	ADL8121ACPZN-R7

Descripción Electrónicos	GaAs, pHEMT, MMIC, Low Noise Amplifier, 0.025 GHz to 12 GHz

PDF	22 Pages

Scroll/Zoom	100%

Fabricante Electrónico	AD [Analog Devices]

Página de inicio	http://www.analog.com

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21 / 22 page

Data Sheet

ADL8121

USING RBIAS TO ENABLE AND DISABLE ADL8121

analog.com

Rev. 0 | 21 of 22

By attaching a single-pole, double throw (SPDT) switch to the

RBIAS pin, an enable and disable circuit can be implemented as

shown in Figure 82. The ADG719 CMOS switch is used to connect

the RBIAS resistor either to supply or ground. When the RBIAS

resistor is connected to ground, the overall current consumption

reduces to 1.0 mA with no RF signal present and 4.0 mA when the

RF input level is –10 dBm.

Figure 83 and Figure 84 show plots of the turn on and the turn off

response time of the RF output envelope when the IN pin of the

ADG719 is pulsed.

Figure 82. Fast Enable and Disable Using a

0 V to 5 V Pulse on the RBIAS Resistor

Figure 83. Turn-On Response Time of the RF Output (RFOUT) Envelope When

IN Pin of the ADG719 Is Pulsed

Figure 84. Turn-Off Response Time of the RFOUT Envelope When IN Pin of the

ADG719 Is Pulsed

ADL8121ACPZN-R7 Datasheet(PDF) 21 Page - Analog Devices