AT20-0273 Datasheet, PDF (1/3 Pages) Tyco Electronics – Digital Attenuator, 32 dB, 2-Bit, TTL Driver, DC - 2 GHz

Digital Attenuator, 32 dB, 2-Bit,
TTL Driver, DC - 2 GHz
V 3.00
Features
n Attenuation: 16 dB steps to 32 dB
n Temperature Stability: ± 0.18 dB from –40°C to +85°C
Typical
n Low DC Power Consumption
n Surface Mount Package
n Integral TTL Driver
n Low Cost/High Performance
n 50 Ohm Nominal Impedance
Description
M/A-COM’s AT20-0273 is a GaAs FET digital
attenuator with a 16 dB minimum step size and 32 dB total
attenuation. This attenuator and integral TTL driver is in a
sealed ceramic 16-lead surface mount package. The
AT20-0273 is ideally suited for use where accuracy, fast
switching, very low power consumption and low
intermodulation products are required. Typical applications
include dynamic range setting in precision receiver circuits
and other gain/leveling control circuits. Available with
enhanced performance as fully hermetic version.
Environmentally screenable as P/N AT-273.
CR-11
Electrical Specifications: T_A = 25°C¹
Parameter
Reference Insertion Loss
Attenuation Accuracy ²
VSWR
Trise, Tfall
Ton, Toff
Transients
1 dB Compression
Input IP3
Input IP2
Vcc
Vee
Test Conditions
—
C1 Bit
Full Attenuation (32 dB)
—
10% to 90%
50% Control to 90/10% RF
In-Band (peak-peak)
Input Power
Input Power
For two-tone Input Power
Up to +5 dBm
For two-tone Input Power
Up to +5 dBm
—
—
Frequency
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.0 GHz
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.0 GHz
—
—
—
0.05 GHz
0.5 - 2.0 GHz
0.05 GHz
0.5 - 2.0 GHz
0.05 GHz
0.5 - 2.0 GHz
—
—
Units Min
Typ
Max
dB
—
dB
—
dB
—
1.2
1.6
1.3
1.7
1.5
1.9
± 3% of attenuation setting in dB
± 3% of attenuation setting in dB
± 3% of attenuation setting in dB, -1 dB
± 3% of attenuation setting in dB, -3 dB
Ratio
—
—
1.4:1
ns
—
50
—
ns
—
150
—
mV
—
50
—
dBm
—
+20
—
dBm
—
+28
—
dBm
—
+38
—
dBm
—
+48
—
dBm
—
+44
—
dBm
—
+68
—
V
4.5
5.0
5.5
V
-8.0
—
-5.0
1. All specifications apply when operated with bias voltages of +5V for Vcc and –5.0V for Vee.
2. This attenuator is guaranteed monotonic.