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HMC221B

GaAs, MMIC, SPDT Switch, 10 kHz to 3 GHz

Analog Devices 

Data Sheet

FEATURES

Low insertion loss: 0.4 dB typical

Input third-order intercept (IP3): 55 dBm typical

Positive control: 0 V/3 V

Ultrasmall package: SOT-23

APPLICATIONS

Industrial, scientific and medical (ISM)

PCMCIA wireless cards

Cellular applications

GENERAL DESCRIPTION

The HMC221B is a single-pole, double-throw (SPDT) switch

specified from 10 kHz to 3 GHz in a 6-lead SOT-23 plastic package.

This switch offers a very low insertion loss of less than 0.8 dB

up to 3 GHz and is well suited for receiver and filter switching

applications that require low insertion loss and a small size.

The RF1 and RF2 pins are reflective shorts when in an off state,

and the two control voltages (the A and B pins) require a minimal

dc bias current. Note that the HMC197B exhibits a similar

performance in an alternate pinout.

GaAs, MMIC, SPDT Switch,

10 kHz to 3 GHz

HMC221B

FUNCTIONAL BLOCK DIAGRAM

A

RFC

B

6

5

4

HMC221B

1

2

3

RF2 GND RF1

Figure 1.

Rev. A

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