GaAs IC 5 Bit Digital Attenuator 0.5 dB LSB DC–2 GHz
AA280-25
Typical Performance Data (0, -5 V)
-0.50
1.5
1.4
1.3
1.2
1.1
1.0
15.5 dB
-0.75
8 dB
-40˚C
4 dB
2 dB
-1.00
+85˚C
+25˚C
-1.25
-1.50
-1.75
-2.00
1 dB
0.5
Ins. Loss
1.5
0.5 dB
0
0.5
1.0
1.5
2.0
0
0
0
1.0
2.0
Frequency (GHz)
Frequency (GHz)
Insertion Loss vs. Frequency
VSWR vs. Frequency (25˚C)
58
56
54
52
50
48
46
1.5
1.4
1.3
1.2
1.1
1.0
+25˚C
15.5 dB
8 dB
4 dB
2 dB
+85˚C
-40˚C
0.5 dB
Ins. Loss
1.5
1 dB
0 1 2 3 4 5 6 7 8 9
0.5
1.0
2.0
10 11 12 13 14 15
Attenuation (dB)
Frequency (GHz)
IP3 vs. Attenuation and Temperature
VSWR vs. Frequency (85˚C)
1.5
1.4
1.3
1.2
1.1
1.0
Compression Point vs. Attenuation,
Voltage, and Temperature
15.5 dB
8 dB
4 dB
Input Power @ 1 dB Compression
Attenuation Control
+
Voltage (V) 25°C (dBm) +85°C (dBm) -40°C (dBm)
State
2 dB
Ins. Loss
-5
-5
-5
-5
-5
-5
-5
28.30
28.50
28.70
28.40
32.90
36.80
32.70
28.10
28.30
28.70
28.30
32.90
36.80
32.10
29.10
29.40
29.60
29.10
33.90
36.80
32.80
0.5 dB
1.0 dB
2.0 dB
4.0 dB
8.0 dB
15.5 dB
Ins. Loss
1.5
0.5 dB
1 dB
0.5
1.0
2.0
Frequency (GHz)
VSWR vs. Frequency (-40˚C)
2
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 11/00A
ALPHA [ ALPHA INDUSTRIES ]
