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HMC1122

RECOMMENDED FOR NEW DESIGNS

0.1 GHz to 6.0 GHz, 0.5 dB LSB, 6-Bit, Silicon Digital Attenuator

Data Sheet (Rev. B) Product Selection Table

Part Models: 2
1ku List Price: price unavailable

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Overview

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.

Applications

Cellular infrastructure
Microwave radios and very small aperture terminals (VSATs)
Test equipment and sensors
IF and RF designs

Part Models: 2
1ku List Price: price unavailable

Documentation

Data Sheet 1

HMC1122: 0.1 GHz to 6.0 GHz, 0.5 dB LSB, 6-Bit, Silicon Digital Attenuator Data Sheet (Rev.B) 04/01/2016

Technical Articles 1

RF and MW Control Products in Silicon 03/01/2016

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. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
HMC1122LP4ME	24-Lead QFN (4mm x 4mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC1122LP4METR	24-Lead QFN (4mm x 4mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 19, 2022 - 22_0048 Addition of ASE Korea as an Alternate Assembly Site for Select LFCSP Products
		PCN22_0048_Form Material_Report Qualification Results Summary Detailed Change Description
HMC1122LP4ME	PRODUCTION
HMC1122LP4METR	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

ADIsimRF

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.

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