Digital Attenuator, 31 dB, 5-Bit
DC – 2 GHz
Features
Attenuation: 1-dB Steps to 31 dB
q
Temperature Stability: ± 0.15 dB from -40°C
to +85°C Typical
q
Ultra Low DC Power Consumption
q
Low Intermodulation Products: IP = 50 dBm
3
q
Low Cost SSOP 20 Plastic Package
q
Tape and Reel Packaging Available
q
AT-260
V 2.00
SSOP-20
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.
Ordering Information
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.
Part No.
AT-260 PIN
AT-260TR
AT-260RTR
Package
SSOP 20-Lead
Forward Tape & Reel
*
Reverse Tape & Ree
l*
Electrical Specifications, T
A
= 25°C
Parameter
Reference
Insertion Loss
Test Conditions
1
*
If specific reel size is requIred, consult factory for part number
assignment.
Attenuation
Accuracy
2
VSWR
Trise, Tfall
Ton, Toff
Transients
One dB
Compression
IP2
DC – 0.1 GHz
DC – 0.5 GHz
DC – 1.0 GHz
DC – 2.0 GHz
DC – 1.0 GHz
DC – 2.0 GHz
(any state)
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF, 50% Control to 10% RF
In Band
Input Power
0.05 GHz
Input Power
0.5-2.0 GHz
Measured Relative
0.05 GHz
to Input Power
0.5-2.0 GHz
(for two-tone input power up to +5 dBm)
Measured Relative
0.05 GHz
to Input Power
0.5-2.0 GHz
(for two-tone input power up to +5 dBm)
Unit
Min.
Typ.
Max
dB
1.6
1.8
dB
1.7
1.9
dB
1.9
2.2
dB
2.2
2.5
± (0.20 dB + 3% of Atten. Setting in dB) dB
± (0.30 dB + 3% of Atten.Setting in dB) dB
1.5:1
nS
8
nS
15
mV
2
dBm
20
dBm
27
dBm
dBm
dBm
dBm
45
60
34
50
IP3
1. All measurements at 1 GHz in a 50Ω system, unless otherwise specified.
2.Attenuation accuracy specifications apply with negative bias control and low inductance grounding.
MA-COM [ M/A-COM TECHNOLOGY SOLUTIONS, INC. ]
