AT-220
Digital Attenuator, 30 dB, 4-Bit
DC - 2.0 GHz
Features
•
•
•
•
•
•
•
Attenuation 2-dB Steps to 30 dB
High Accuracy
Low Intermodulation Product: +50 dBm IP3
Low DC Power Consumption: 50 µW
SOIC-16 Plastic Package
Tape and Reel Packaging Available
Temperature Stability +/-0.15 dB: -40°C to +85°C
Rev. V5
Functional Schematic
RF1
16
GND
15
GND
14
GND
13
GND GND
12
11
GND
10
RF2
9
16 dB
8 dB
4 dB
2 dB
Description
M/A-COM’s AT-220 is a 4-bit, 2-dB step GaAs MMIC
digital attenuator in a low cost SOIC 16-lead surface
mount plastic package. The AT-220 is ideally suited
for use where high accuracy, fast switching, very low
power consumption and low intermodulation
products are required. Typical applications include
radio and cellular equipment, wireless LANs, GPS
equipment and other Gain/Level Control circuits.
The AT-220 is fabricated with a monolithic GaAs
MMIC using a mature 1-micron process. The
process features full chip passivation for increased
performance and reliability.
1
2
3
4
5
6
7
8
VC1
VC1
VC2
VC2
VC3
VC3
VC4
VC4
Pin Configuration
Pin No.
1
2
Function
VC1
VC1
VC2
VC2
VC3
VC3
VC4
VC4
Pin No.
9
10
11
12
13
14
15
16
Function
RF2
GND
GND
GND
GND
GND
GND
RF1
Ordering Information
Part Number
AT-220 PIN
AT-220TR*
3
4
Package
SOIC 16-Lead Plastic Package
1000 piece reel
5
6
7
8
* Reference Application Note M513 for reel size information.
Absolute Maximum Ratings
1
Parameter
Input Power:
50 MHz
500-2000 MHz
Control Voltage
Operating Temperature
Storage Temperature
Absolute Maximum
+27 dBm
+34 dBm
-8.5 V
≤
V
C
≤
5V
-40°C to +85°C
-65°C to +150°C
1. Exceeding any one or combination of these limits may cause
permanent damage to this device.
1
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
is considering for development. Performance is based on target specifications, simulated results,
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
and/or prototype measurements. Commitment to develop is not guaranteed.
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Visit www.macomtech.com for additional data sheets and product information.
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.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MA-COM [ M/A-COM TECHNOLOGY SOLUTIONS, INC. ]
