Voltage Variable Absorptive Attenuator, 30 dB 0.5 - 2 GHz AT-110 V 2.00 Features ● ● ● ● ● ● ● ● SO-8 Single Positive Voltage Control 0 to +5 Volts 30 dB Voltage Variable Attenuation ±2 dB Linearity from BSL Low DC Power Consumption Temperature Range: -40°C to +85°C Low-Cost SOIC 8 Plastic Package Tape and Reel Packaging Available Fast Switching Speed Description M/A-COM’s AT-110 is a linear GaAs MMIC voltage variable absorptive attenuator in a low-cost SOIC 8-lead surface mount plastic package. The AT-110 has a faster switching speed than the AT-108 or AT-109. The AT-110 is ideally suited for use where linear attenuation fine tuning and very low power comsumption are required. Typical applications include radio, cellular, GPS equipment and automatic gain/level control circuits. The AT-110 is fabricated with a monolithic GaAs MMIC using a mature 1-micron process. The process features full chip passivation for increased performance and reliability. Ordering Information Part Number AT-110 AT-110TR AT-110RTR * Package SOIC 8-Lead Plastic Package Forward Tape & Reel* Reverse Tape & Reel* If specific reel size is required, consult factory for part number assignment. Typical Electrical Specifications 1, TA = +25°C Parameter Insertion Loss Attenuation Flatness (Peak-to-Peak) Test Conditions Units 0.5 - 1.0 GHz 1.0 - 2.0 GHz 0.5 - 16 GHz 1.0 - 26 GHz dB dB dB dB 0.5 - 1.0 GHz 1.0 - 2.0 GHz dB dB VSWR Trise, Tfall Ton, Toff Transients Min. Typ. Max. 2.8 3.3 3.0 3.6 ±0.5 ±1.2 ±0.8 ±1.5 30 25 2:1 10% to 90% RF, 90% to 10% RF 50% Control to 90% RF, Control to 10% RF In-band µS µS mV 0.2 0.2 70 1. All measurements at 1 GHz in a 50-Ω system, unless otherwise specified.The RF ports must be blocked outside of the package from ground or any other voltage. Voltage Variable Absorptive Attenuator, 30 dB AT-110 V 2.00 Absolute Maximum Ratings 1 Parameter Functional Schematic Absolute Maximum Maximum Input Power Supply Voltage VCC Control Voltage VC Operating Temperature Storage Temperature +21 dBm -1 V, +8 V -1 V, VCC +0.5 V -40°C to +85°C -65°C to +150°C 1. Operation of this device above any one of these parameters may cause permanent damage. V CC = +5 VDC ± 0.5 VDC @ 300 µA max. VC = 0 VDC to +5 VDC @ 6 mA max. External DC blocking capacitors are required on all RF ports. Typical Performance RELATIVE ATTENUATION @ +25°C, F = 1800 MHz vs CONTROL VOLTAGE INSERTION LOSS 0 vs FREQUENCY 4.0 -5 -10 3.0 -15 2.0 -20 -25 1.0 -30 -35 5 4 3 2 1 0 0 0.5 1.0 CONTROL VOLTAGE (VOLTS) 1.5 2.0 FREQUENCY (GHz) ATTENUATION vs TEMPERATURE, NORMALIZED TO +25°C, F = 900 MHz ATTENUATION vs CONTROL VOLTAGE @ +25°C, F = 900 MHz 0 3 -40°C 2 -10 1 -20 +85°C 0 -1 -30 -2 -40 5 4 3 2 1 CONTROL VOLTAGE (VOLTS) 0 -3 5 4 3 2 1 CONTROL VOLTAGE (VOLTS) 0 Voltage Variable Absorptive Attenuator, 30 dB AT-110 V 2.00 1dB COMPRESSION vs CONTROL VOLTAGE @ +25°C, F = 900 MHz RETURN LOSS vs CONTROL VOLTAGE @ +25°C, F = 900 MHz 0 30 -5 25 -10 20 -15 15 -20 10 -25 5 -30 -35 0 5 4 3 2 1 0 CONTROL VOLTAGE (VOLTS) 35 IP3 vs 400 MHz 30 25 20 900 MHz 10 5 0 5 4 3 2 1 CONTROL VOLTAGE (VOLTS) 4 3 2 1 CONTROL VOLTAGE (VOLTS) CONTROL VOLTAGE 15 5 0 0