HMC8414ACPZN-R7 datasheet(33/34 Pages) AD

Part #	HMC8414ACPZN-R7

Description	Low Noise Amplifier with Bypass Switch 0.1 GHz to 10 GHz

PDF	34 Pages

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Manufacturer	AD [Analog Devices]

Direct Link	http://www.analog.com

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33 / 34 page

Data Sheet

HMC8414

USING THE RBIAS PIN TO ENABLE AND DISABLE THE HMC8414

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Rev. 0 | 33 of 34

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

RBIAS pin, an enable and/or disable circuit can be implemented

as shown in Figure 135. 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 4.73 mA with no RF signal present and

4.92 mA when the RF input level is –10 dBm. The RF envelope

response (blue trace) is driven by the trigger (enable) signal (red

trace). Figure 134 shows a plot of the turn-on and/or turn-off

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

ADG719 is pulsed.

Figure 134. On and/or Off Response of the RF Output Envelope When the IN

Pin of the ADG719 Is Pulsed

Figure 135. Fast Enable and/or Disable Circuit Using an SPDT

HMC8414ACPZN-R7 Datasheet(PDF) 33 Page - Analog Devices