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AA210-25 Datasheet PDF - Alpha Industries

Part Number AA210-25
Description GaAs IC 4 Bit Digital Attenuator 1 dB LSB DC-2 GHz
Manufacturers Alpha Industries 
Logo Alpha Industries Logo 

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AA210-25 datasheet, circuit
GaAs IC 4 Bit Digital Attenuator
1 dB LSB DC–2 GHz
Features
I Attenuation in 1 dB Steps to 15 dB with
High Accuracy
I Low Intermodulation Products
I Low Cost SOIC-16 Plastic Package
I Low DC Power Consumption
Description
The AD210-25 is an IC FET digital attenuator consisting
of four monolithic attenuators with LSB of 1 dB and a total
attenuation of 15 dB with all attenuators connected.
Attenuator bits are switched with -5 and 0 V.
The AD210-25 is particularly suited where high
attenuation accuracy, low insertion loss and low
intermodulation products are required. Typical applications
include cellular, radio, wireless data, wireless local loop
and other gain/level control circuits.
Electrical Specifications at 25°C (0, -5 V)
Insertion Loss3
Parameter1
Attenuation Range
Attenuation Accuracy4
VSWR (I/O)
SOIC-16
PIN 16
AA210-25
(Previously AD210-25)*
0.050
(1.27 mm) BSC
PIN 1
INDICATOR
0.244 (6.20 mm)
0.228 (5.80 mm)
PIN 1
0.068
(1.73 mm) MAX.
0.020 (0.51 mm)
0.013 (0.33 mm)
0.049 (1.24 mm)
0.016 (0.41 mm)
0.016 MAX.
(0.41 mm)
x 45˚
CHAMFER
8˚ MAX.
0.394 (10.00 mm)
0.386 (9.80 mm)
0.010 (0.25 mm)
0.004 (0.10 mm)
0.0098 (0.25 mm)
0.0075 (0.19 mm)
0.158 (4.00 mm)
0.150 (3.80 mm)
Frequency2
DC–0.1 GHz
DC–0.5 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–1.0 GHz
DC–2.0 GHz
Min.
Typ. Max.
0.9 1.2
1.1 1.5
1.3 1.8
2.1 2.5
15
± (0.25 + 3% of Attenuation
Setting in dB)
± (0.4 + 5% of Attenuation
Setting in dB)
1.3:1
1.6:1
1.4:1
1.8:1
Unit
dB
dB
dB
dB
dB
dB
dB
Operating Characteristics at 25°C (0, -5 V)
Parameter1
Switching Characteristics5
Input Power for 1 dB Compression
Intermodulation Intercept Point (IP3)
Control Voltages
Condition
Frequency
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
0.50–2.0 GHz
0.05 GHz
For Two-tone Input Power +5 dBm
0.50–2.0 GHz
0.05 GHz
VLow = 0 to -0.2 V @ 10 µA Typ.
VHigh = -5 @ 10 µA Typ. to -8 V @ 200 µA Typ.
Min.
Typ.
15
25
25
+28
+22
+48
+38
Max.
Unit
ns
ns
mV
dBm
dBm
dBm
dBm
1. All measurements made in a 50 system, unless otherwise specified.
2. DC = 300 kHz.
3. Insertion loss changes by 0.003 dB/°C.
4. Attenuation referenced to insertion loss.
5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
*Due to conflict with another company’s product numbering system, Alpha’s attenuator products starting with the letters “AD” are being changed to “AA”.
Alpha Industries, Inc. [781] 935-5150 Fax [617] 824-4579 Email sales@alphaind.com www.alphaind.com
Specifications subject to change without notice. 10/99A
1

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Part NumberDescriptionManufacturers
AA210-25The function is GaAs IC 4 Bit Digital Attenuator 1 dB LSB DC-2 GHz.Alpha Industries
Alpha Industries

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