Part No.

Package

AT-260 PIN

SSOP 20-Lead

AT-260TR

Forward Tape & Reel

*

AT-260RTR

Reverse Tape & Ree

l*

Parameter

Test Conditions

1

Unit

Min.

Typ.

Max

Reference

DC – 0.1 GHz

dB

1.6

1.8

Insertion Loss

DC – 0.5 GHz

dB

1.7

1.9

DC – 1.0 GHz

dB

1.9

2.2

DC – 2.0 GHz

dB

2.2

2.5

Attenuation

DC – 1.0 GHz

± (0.20 dB + 3% of Atten. Setting in dB) dB

DC – 2.0 GHz

± (0.30 dB + 3% of Atten.Setting in dB) dB

VSWR

(any state)

1.5:1

Trise, Tfall

10% to 90% RF, 90% to 10% RF

nS

8

Ton, Toff

50% Control to 90% RF, 50% Control to 10% RF

nS

15

Transients

In Band

mV

2

One dB

Input Power

0.05 GHz

dBm

20

Compression

Input Power

0.5-2.0 GHz

dBm

27

IP2

Measured Relative

0.05 GHz

dBm

45

to Input Power

0.5-2.0 GHz

dBm

60

(for two-tone input power up to +5 dBm)

IP3

Measured Relative

0.05 GHz

dBm

34

to Input Power

0.5-2.0 GHz

dBm

50

(for two-tone input power up to +5 dBm)

Features

Attenuation: 1-dB Steps to 31 dB

Temperature Stability: ± 0.15 dB from -40°C

to +85°C Typical

Ultra Low DC Power Consumption

Low Intermodulation Products: IP3 = 50 dBm

Low Cost SSOP 20 Plastic Package

Tape and Reel Packaging Available

Description

M/A-COM's AT-260 is a 5-bit, 1-dB step GaAs MMIC digi-

tal attenuator in a low cost SSOP-20 surface mount plastic

package. The AT-260 is ideally suited for use where high

accuracy, fast switching, very low power consumption and

low intermodulation products are required at a low cost.

Typical applications include radio and cellular equipment,

wireless LANS, GPS equipment and other Gain/Level

Control circuits.

The AT-260 is fabricated with a monolithic GaAs MMIC

using a mature 1-micron process. The process features full

chip passivation for increased performance and reliability.

Digital Attenuator, 31 dB, 5-Bit

DC – 2 GHz

AT-260

SSOP-20

1. All measurements at 1 GHz in a 50

Ω system, unless otherwise specified.

2.Attenuation accuracy specifications apply with negative bias control and low inductance grounding.

q

q

q

q

q

q

Ordering Information

*

If specific reel size is requIred, consult factory for part number

assignment.

V 2.00