Features and Benefits
- Attenuation range: 0.5 dB LSB steps to 31.5 dB
- Low insertion loss
- 1.1 dB at 1 GHz
- 1.3 dB at 2 GHz
- Typical step error: less than ±0.1 dB
- Excellent attenuation accuracy
- Safe state transitions
- High linearity
- Input 0.1dB compression (P0.1dB): 30 dBm typical
- Input third-order intercept (IP3): 55 dBm typical
- RF settling time (0.05 dB final RF output): 250 ns
- Low phase shift error: 6° at 1 GHz
- Single supply operation: 3.3 V to 5 V
- ESD rating: Class 2 (2 kV HBM)
- 24-lead, 4 mm × 4 mm LFCSP package: 16 mm2
- Pin compatible to the HMC624A
The HMC1122 is a 6-bit digital attenuator operating from 0.1 GHz to 6 GHz with a 31.5 dB attenuation control range in 0.5 dB steps.
The HMC1122 is implemented in a silicon process, offering very fast settling time, low power consumption, and high ESD robustness. The device features safe state transitions and optimized for excellent step accuracy and high linearity over frequency and temperature range. The RF input and output are internally matched to 50 Ω and do not require any external matching components. The design is bidirectional; therefore, the RF input and output are interchangeable.
The HMC1122 operates on a single supply ranging from 3.3 V to 5 V with no performance change due to an on-chip regulator.
The device incorporates a driver that provides both serial and parallel control of the attenuator. The device also features a user-selectable power-up state and a serial output port for cascading other serial controlled components.
The HMC1122 comes in a RoHS compliant, compact, 4 mm × 4 mm LFCSP package, and is pin compatible to the HMC624A.A fully populated evaluation board is available.
- Cellular infrastructure
- Microwave radios and very small aperture terminals (VSATs)
- Test equipment and sensors
- IF and RF designs
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Tools & Simulations
ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.