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Truth Table

Control Voltage

Bias Voltage & Current

Worst Case Step Error

Between Successive Attenuation States

Absolute Maximum Ratings

Control Voltage Input

Attenuation

State

RF1 - RF2

V1

16 dB

V2

8 dB

V3

4 dB

V4

2 dB

V5

1 dB

V6

0.5 dB

High

High

High

High

High

High

Reference

I.L.

High

High

High

High

High

Low

0.5 dB

High

High

High

High

Low

High

1 dB

High

High

High

Low

High

High

2 dB

High

High

Low

High

High

High

4 dB

High

Low

High

High

High

High

8 dB

Low

High

High

High

High

High

16 dB

Low

Low

Low

Low

Low

Low

31.5 dB

Any Combination of the above states will provide

an attenuation approximately equal to the sum of

the bits selected.

State

Bias Condition

Low

0 to 0.2V @ 10 μA Typ.

High

Vdd ± 0.2V @ 5 μA Typ.

Note: Vdd= +3V to +5V

Vdd Range= +3 to +5 Vdc

Vdd

(Vdc)

Idd (Typ.)

(μA)

+3.0

10

+5.0

30

Control Voltage (V1 to V6)

Vdd +0.5 Vdc

Bias Voltage (Vdd)

+7.0 Vdc

Storage Temperature

-65 to + 150 °C

Operating Temperature

-55 to +85 °C

RF Input Power (2.4 - 8.0 GHz)

+30 dBm

ESD Sensitivity (HBM)

Class 1A

ELECTROSTATIC SENSITIVE DEVICE

OBSERVE HANDLING PRECAUTIONS

Standard

Alternate

WP-8 (Waffle Pack)

[2]

[1] Refer to the “Packaging Information” section for die

packaging dimensions.

[2] For alternate packaging information contact Hittite

Microwave Corporation.

-2

-1.5

-1

-0.5

0

0.5

1

1.5

2

12

34

567

8

9

10

FREQUENCY (GHz)

HMC425

0.5 dB LSB GaAs MMIC 6-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, 2.4 - 8.0 GHz

v02.0907