Digital Attenuator, 32 dB, 2-Bit DC - 2 GHz AT-272 V 2.00 Features ● ● ● ● ● CR-6 Attenuation 16-dB Steps to 32 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, 6 ns Typical Guaranteed Specifications1 Frequency Range Nominal Attenuation2 Attenuation Accuracy Any Single Bit (From -55°C to + 85°C) DC – 2.0 GHz 16 dB Steps to 32 dB DC – 2.0 GHz (DC-2 GHz ± 3% of Attenuation Setting in dB) dB Any Combination of Bits (DC-1 GHz ± 3% of Attenuation Setting in dB) dB Any Combination of Bits (1-2 GHz ± 7.5% of Attenuation Setting in dB) dB VSWR Reference Insertion Loss DC – 2.0 GHz DC – 2.0 GHz 1.6:1 Max 2.0 dB Max Operating Characteristics Impedance 50 Ohms Nominal Switching Characteristics Trise, Tfall (10% to 90%) 6 ns Typ Ton, Toff (50% CTL to 90%/10%) 16 ns Typ Transients (in-Band) 15 mV Typ Input Power for 1 dB Compression 0.05 GHz +27 dBm Typ 0.5 GHz to 3 GHz +30 dBm Typ Intermodulation Intercept point (for two-tone input power up to +5 dBm) Intercept Points IP2 IP3 0.05 GHz +44 +38 dBm Typ 0.5 GHz to 3 GHz +68 +48 dBm Typ Control Voltages (Complementary Logic) Vin Low 0V to -0.2V @ 20 µA Max Vin Hi -5V @ 20 µA typ to -8V @ 100 µA Max 1. All specifications apply when operated with a 50 ohm impedance at both RF ports. 2. Above reference insertion loss. Ordering Information Part Number AT-272 PIN Package Ceramic V 2.00 Absolute Maximum Ratings1 Parameter Max. Input Power 0.05 GHz 0.5 – 2.0 GHz Control Voltage Operating Temperature Storage Temperature Absolute Maximum +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 VC2 VC2 VC1 VC1 Attenuation (dB) 1 0 1 0 1 0 0 1 Reference 16 dB 0 1 1 0 16 dB 0 1 0 1 32 dB "0" = Vin Low, Vin Low = 0V, "1" = Vin High, Vin High = -5V Functional Schematic (Top View) Typical Performance