Specifications subject to change without notice.
Visit www.macom.com for additional data sheets and product information.
Features
Electrical Specifications: T
Description
M/A-COM’s AT-108 is a GaAs, MESFET MMIC voltage
variable absorptive attenuator in a low cost SOIC-8 lead surface
mount plastic package. The AT-108 is ideally suited for use
where linear attenuation fine tuning and very low power
consumption are required. Typical applications include radio,
cellular, GPS equipment and automatic gain/level control
circuits.
The AT-108 is fabricated with a monolithic GaAs MMIC using
a mature 1-micron process.
passivation for increased performance and reliability.
Insertion Loss
Attenuation
Flatness
(Peak-to-Peak)
VSWR
T
T
Transients
1.
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
rise
on
North America: Tel. (800) 366-2266, Fax (800) 618-8883
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
Single Positive Voltage Control 0 to +5 Volts
40 dB Attenuation Range at 900 MHZ GHz
± 2 dB Linearity from BSL
Low DC Power Consumption
Low-Cost SOIC-8 Plastic Package
Tape and Reel Packaging Available
, T
, T
All measurements in a 50 system.
off
Parameter
fall
0.5 - 1.0 GHz
1.0 - 3.0 GHz
0.5 - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 3.0 GHz
0.5 - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 3.0 GHz
0.5 - 3.0 GHz
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF, Control to 10% RF
In-band
The process features full chip
Voltage Variable Absorptive Attenuator
Voltage Variable Absorptive Attenuator
40 dB, 0.5
40 dB, 0.5— — — — 3.0 GHz
Voltage Variable Absorptive Attenuator
Voltage Variable Absorptive Attenuator
40 dB, 0.5
40 dB, 0.5
A
= 25°C
Test Conditions
1
= = = =
3.0 GHz
3.0 GHz
3.0 GHz
1
SOIC-8
.0532/.0688
1. If specific reel size is required, consult factory for part number
1. Dimensions are in inches/mm.
Ordering Information
(1.35/1.75)
Oreintation
Mark
AT-108
AT-108TR
AT-108RTR
.004 (0.10)
assignment.
PIN 8
PIN 1
Part Number
.050 (1.27)
1
.1890/.1968
BSC.
(4.80/5.00)
-A-
Units
mV
dB
dB
dB
dB
dB
dB
dB
dB
µs
µs
.010(.25)
.1497/.1574
(3.80/4.00)
.0040/.0098
.013/.020 (8
-C-
-B-
(.10/.25)
M
(.33/.51)
SOIC-8 Lead Plastic Package
Forward Tape and Reel
Reverse Tape and Reel
PL)
C A
Min.
40
35
28
M
0°/80°
B
.2284/.2440
(5.80/6.20)
CHAMFER
(OPTIONAL
S
.010(.25)
)
Package
M B
Typ.
±0.5
±1.2
±1.5
2.5
3.2
2:1
15
25
12
M
(0.40/1.27)
.016/.050
AT-108
1
1
Max.
±0.8
±1.5
±1.8
.0075/.0098
2.7
3.5
(.19/.25)
V 4.0