• North America Tel: 800.366.2266 / Fax: 978.366.2266

• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300

• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298

Visit www.macomtech.com for additional data sheets and product information.

M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make

changes to the product(s) or information contained herein without notice.

1

Digital Attenuator, 1-Bit, 10 dB Step

DC - 2.0 GHz

Rev. V2

MAATSS0018

ADVANCED:

Data Sheets contain information regarding a product M/A-COM Technology Solutions

is considering for development. Performance is based on target specifications, simulated results,

and/or prototype measurements. Commitment to develop is not guaranteed.

PRELIMINARY:

Data Sheets contain information regarding a product M/A-COM Technology

Solutions has under development. Performance is based on engineering tests. Specifications are

typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.

Commitment to produce in volume is not guaranteed.

Features

• Single 10 dB Step

• Low Loss: 0.3 dB @ 900 MHz

• Lead-Free SOT-25 Package

• 100% Matte Tin Plating over Copper

• Halogen-Free “Green” Mold Compound

• 260°C Reflow Compatible

• RoHS* Compliant Version of AT-266

Description

M/A-COM’s MAATSS0018 is a 1 bit, 10 dB step

GaAs MMIC digital attenuator in a lead-free SOT-25

surface mount plastic package. The MAATSS0018

is ideally suited for use where high accuracy, very

low power consumption and low intermodulation

products are required. Typical applications include

radio, wireless LANs, GPS equipment and other

gain/level control circuits.

The MAATSS0018 is a GaAs MMIC using a mature

1-micron process. The process features full chip

passivation for increased performance and reliability.

Ordering Information

Part Number

Package

MAATSS0018

Bulk Packaging

MAATSS0018TR

1000 piece reel

1. Reference Application Note M513 for reel size information.

Pin No.

Function

1

RF1

2

GND

3

RF2

4

V1

5

V2

Description

RF In/Out

RF Ground

RF In/Out

Control Voltage

Control Voltage

Pin Configuration

Functional Block Diagram

V1

V2

Attenuation State

0

1

10 dB

1

0

Insertion Loss

Truth Table

4,5,6

4. For positive voltage control, external DC blocking capacitors

are required on all RF ports (pins 1, 2 and 3)

5. Differential voltage, V(state 1) - V(state 0), must be +2.8 V

minimum and less than 8 V.

6. 0 = -8 V to 0.2 V, 1 = -0.2 V to 8 V

Absolute Maximum Ratings

2,3

Parameter

Absolute Maximum

Input Power

50 MHz

500 - 2000 MHz

+27 dBm

+34 dBm

Control Voltage

-8.5 V < Vc < +8 V

Operating Temperature

-40°C to +85°C

Storing Temperature

-65°C to +150°C

2. Exceeding any one or combination of these limits may cause

permanent damage to this device.

3. M/A-COM does not recommend sustained operation near

these survivability limits.

* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.