ETC AT-212

Digital Attenuator, 15 dB, 4-Bit
DC - 2 GHz
AT-212
V 2.00
Features
●
●
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CR-6
Attenuation 1-dB Steps to 15 dB
Temperature Stability +/-0.18 dB from -55°C
to +85°C Typical
Ultra Low DC Power Consumption
Hermetic Surface Mount Package
Fast Switching Speed, 10 ns Typical
Guaranteed Specifications1
(From -55°C to +85°C)
Frequency Range
DC - 2.0 GHz
Nominal Attenuation2
1 dB Steps to 15 dB
Attenuation Accuracy
DC - 2.0 GHz
Any Single Bit
+/- (0.10 dB + 3% if Attenuation Setting in dB) dB
Any Combination of Bits+/- (0.15 dB +3% if Attenuation Setting in dB) dB
VSWR
DC - 2.0 GHz
1.5:1 dB Max
Reference Insertion Loss
DC - 2.0 GHz
2.0 dB Max
Operating Characteristics
Impedance
50 Ohms Nominal
Switching Characteristics
Trise, Tfall (10% to 90%)
Ton, Toff (50% C+L to 90%/10% RF)
Transients (in band)
10 ns Typ
15 ns Typ
18 mV Typ
Input Power for 1 dB Compression
.005 GHz
.05 GHz to 5 GHz
+22 dBm Typ
+28 dBm Typ
Intermodulation Intercept Point
(for two-tone input power up to +5 dBm)
Intercept Points
IP2
.005 GHz to 5 GHz
+49
.05 GHz to 5 GHz
+72
IP3
+45
+50
dBm
dBm
Control Voltages (Complementary Logic)
V IN Low
0 V to -0.2 V @ 20µA Max
V IN Hi
-5 V @ 10µA typ to -8 V @ 200 µA Max
1. All specifications apply with 50 ohm connected to all RF ports.
2.Above reference insertion loss .
3.Contact the factory for standard or custom screening requirements.
Ordering Information
Model No.
Package
AT-212 PIN
Surface Mount
Digital Attenuator, 15 dB, 4-Bit
AT-212
V 2.00
Absolute Maximum Ratings 1
Parameter
Absolute Maximum
Max Input Power
0.05 GHz
0.5 - 2.0 GHz
+27 dBm
+34 dBm
Control Voltage
+5 V, -8.5 V
Operating Temperature
-55°C to +125°C
Storage Temperature
-65°C to +150C
1. Operation of this device above any one of these parameters may
cause permanent damage.
Truth Table
Control Inputs
VC4 VC4 VC3 VC3 VC2 VC2 VC1 VC1 Attenuation
(dB)
1
0
1
0
1
0
1
0
Reference
0
1
1
0
1
0
1
0
1 dB
1
0
0
1
1
0
1
0
2 dB
1
0
1
0
0
1
1
0
4 dB
1
0
1
0
1
0
0
1
8 dB
0
1
0
1
0
1
0
1
15 dB
“0” = Vin Low, Vin Low = 0 V, “1” = Vin High, Vin High = -5 V
Functional Schematic (Top View)
Typical Performance