Digital Attentuator, 15.5 dB, 5-Bit DC - 2 GHz AT-282 V 2.00 Features CR-6 • Attenuation 0.5 dB Steps to 15.5 dB • Temperature Stability +/- 0.12 dB from -55˚C to +85˚ C Typical • Ultra Low DC Power Consumption • Hermetic Surface Mount Package • Fast Switching Speed, 12 ns Typical Guaranteed Specifications1 (From -55°C to + 85°C) Frequency Range DC – 2.0 GHz Nominal Attenuation 2 0.5 dB Steps to 15.5 dB Attenuation Accuracy DC – 2.0 GHz dB DC-2 GHz +/-(0.2 dB +3% of Attenuation Setting in dB) VSWR DC – 2.0 GHz 1.6:1 Max Reference Insertion Loss DC – 2.0 GHz 2.2 dB Max Operating Characteristics Impedance 50 Ohms Nominal Switching Characteristics Trise, Tfall (10% to 90%) Ton, Toff (50% CTL to 90%/10%) Transients (in-Band) 12 ns Typ 18 ns Typ 30 mV Typ Input Power for 1 dB Compression 0.05 GHz 0.5 – 2.0 GHz +22 dBmTyp +27 dBmTyp Intermodulation Intercept point (for two-tone input power up to +5 dBm) Intercept Points IP2 IP3 0.05 GHz +53 +41 dBm Typ 0.5 – 2.0 GHz +68 +43 dBm Typ Control Voltages (Complementary Logic) Vin Low 0V to -0.2V @ 30 µA Max Vin High -5V @ 10 µA typ to -8V @ 200 µA Max 1. All specifications apply when operated with a 50 ohm impedance at both RF ports. 2. Above reference insertion loss. 3. Contact the factory for standard or custom screening requirements. Ordering Information Model No. Package AT-282 PIN Surface Mount Digital Attenuator, 15.5 dB, 5-Bit AT-282 V 2.00 Absolute Maximum Ratings Typical Performance Parameter Absolute Maximum1 Max. Input Power 0.05 GHz 0.5 – 2.0 GHz Control Voltage Operating Temperature Storage Temperature +27 dBm +34 dBm +5 V, –8.5 V –55˚C to +125˚C –65˚C to +150˚C 1.Operation of this device above any one of these parameters may cause permanent damage. Truth Table Control Inputs VC5 VC4 VC3 VC3 VC2 VC2 VC1 VC1 Attenuation (dB) 1 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 Reference 1 0 1 0 0.5 dB 1 0 1 0 1 dB 0 2 dB 1 1 0 1 1 0 1 1 1 1 0 0 1 1 0 4 dB 1 1 1 0 1 0 0 1 8 dB 0 0 0 1 0 1 0 1 15.5 dB "0" = Vin Low, Vin Low = 0V, "1" = Vin High, Vin High = -5V Functional Schematic (Top View)