ALPHA AT002N5-10

GaAs 50 dB IC Voltage Variable
Dual Control Attenuator DC–3 GHz
AT002N5-01, AT002N5-10
Features
-01
■ Dual Control Voltages
0.220 (5.59 mm)
0.210 (5.33 mm)
■ Low Insertion Loss
0.130 (3.30 mm) TYP.
0.063 (1.60 mm) TYP.
■ 7 Lead Hermetic Package
0.130 (3.30 mm) TYP.
■ Capable of Meeting MIL-STD
Requirements5
0.268
(6.81 mm)
0.252
(6.40 mm)
0.45 (1.14 mm) TYP.
Description
The AT002N5-01 is a GaAs IC FET absorptive attenuator.
It provides up to 50 dB variable attenuation from
DC–3 GHz under non-reflective conditions. This
attenuator is recommended for fast response AGC circuits
for commercial and high reliability applications. The
AT002N5-10 is the gullwing version of this device for
surface mount applications.
0.160
(4.06 mm)
0.120
(3.05 mm)
0.031
(0.79 mm)
MAX.
0.013 (0.33 mm)
0.007 (0.18 mm)
0.007 (0.18 mm)
0.003 (0.08 mm)
0.065
(1.65 mm)
MAX.
Electrical Specifications at 25°C
Parameter1
Frequency4
Insertion Loss2
DC–1.0 GHz
DC–2.0 GHz
DC–3.0 GHz
Attenuation Range
DC–1.0 GHz
DC–2.0 GHz
DC–3.0 GHz
VSWR (I/O)
DC–1.0 GHz
DC–2.0 GHz
DC–3.0 GHz
Min.
50
48
45
Typ.
Max.
Unit
1.2
1.4
1.7
1.4
1.8
2.0
dB
dB
dB
55
52
48
dB
dB
dB
1.2:1
1.4:1
1.6:1
1.3:1
1.5:1
1.8:1
Typ.
Max.
Operating Characteristics at 25°C
Parameter
Condition
Switching Characteristics
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru3
Input Power for 1 dB Compression
For All Attenuation Levels
Control Voltages
VLow = 0 to -0.2 V @ 20 µA Max.
VHigh = -5 V @ 100 µA Max.
Frequency
0.5–3 GHz
0.05 GHz
Min.
Unit
10
15
20
ns
ns
mV
0
-3
dBm
dBm
1. All measurements made in a 50 Ω system, unless otherwise specified.
2. Insertion loss changes by 0.003 dB/°C.
3. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
4. DC = 300 kHz.
5. See Quality/Reliability section.
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 9/99A
1
GaAs 50 dB IC Voltage Variable Dual Control Attenuator DC–3 GHz
AT002N5-01, AT002N5-10
Typical Transfer Curve
F = 1 GHz, VP1 = 3.5 V
60
50 dB ± 4 dB
50
-1.0
-2.0
Attenuation (dB)
V1 V2 Control Voltages (V)
0
V1 (Series)
-3.0
V2 (Shunt)
40 dB ± 2 dB
40
30 dB ± 1 dB
30
20 dB ± 0.5 dB
-4.0
20
-5.0
DC
10
DC
10 dB ± 0.2 dB
10
20
30
40
50
60
1
2
3
Relative Attenuation (dB)
Frequency (GHz)
Relative Attenuation vs. Control Voltages
Attenuation (By State) vs. Frequency
PIN at 1.0 dB Compression (dBm)
1. VP = FET pinchoff voltage
Absolute Maximum Ratings
F = 500 MHz
20
Characteristic
15
RF Input Power (RF In)
10
Control Voltage (VC)
5
Value
10 mW > 500 MHz 0/-8 V Control
4 mW 50 MHz -8 V Control
+0.2 V, -10 V
Operating Temperature (TOP)
-55°C to +125°C
Storage Temperature (TST)
-65°C to +150°C
Thermal Resistance (ΘJC)
25°C/W
0
-10
-5
0
5
10
15
20
25
0.345 (8.76 mm)
± 0.010 (0.25 mm)
30
Attenuation (dB)
0.215 (5.46 mm)
Attenuation vs. 1.0 dB Compression Point
Pin Out
0.385 (9.78 mm)
± 0.010 (0.25 mm)
0.080 (2.03 mm)
TYP.
0.045 (1.14 mm)
TYP.
GND
0.268 (6.81 mm)
0.252 (6.40 mm)
0.063
(1.60 mm)
TYP.
0.013 (0.33 mm)
0.007 (0.18 mm)
J1
2
0.130 (3.30 mm) TYP.
0.065 (1.65 mm) MAX.
0.030 (0.76 mm)
0.015 (0.038 mm)
GND
V1
V2
GND
J2
0.007
(0.18 mm)
0.003
(0.08 mm)
0.060 (1.52 mm) TYP.
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 9/99A
0.029
(0.74 mm)
TYP.