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single-pole double-throw cmos switch

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qqpei

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Hi I am looking for a CMOS single-pole double-throw switch which could
switch differential signals. The working frequency better to be up to 2GHz.

Is there any available topology for that?
 

Pazam

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Mmmmm....

Hittite have switches, DC to several gigahertz.
The URL is:
https://www.hittite.com/

The HMC226 for example, is a nice one. It's DC to 2GHz, works on 3V and has high input and output power spec.
For a differential signal you can use two switches, as the price of one switch is not high.

Good luck,

Pazam
 

lguancho

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For RF switch, they can be pin diode or fet design. By CMOS, I assume you are referring to the switch driver implementation. Hittite or alpha industries have good Gasfet switch, which can be easily controlled by CMOS driver circuit.

FET switches are fast, low loss and have lower video leakage. But their power handling is not as good as PIN Diode switch.
 

crossbow_123

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Pazam said:
Mmmmm....

Hittite have switches, DC to several gigahertz.
The URL is:
h**p://www.hittite.com/

The HMC226 for example, is a nice one. It's DC to 2GHz, works on 3V and has high input and output power spec.
For a differential signal you can use two switches, as the price of one switch is not high.

Good luck,

Pazam



thanks
 

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