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HMC624A

RECOMMENDED FOR NEW DESIGNS

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

Data Sheet (Rev. B) Product Selection Table

Part Models: 4
1ku List Price: price unavailable

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Overview

Attenuation range: 0.5 dB (LSB) steps to 31.5 dB
Low insertion loss: 1.6 dB at 3 GHz
Excellent attenuation accuracy
High linearity
- Input 0.1dB compression (P0.1dB): 33 dBm typical
- Input third-order intercept (IP3): 55 dBm typical
High RF input power handling: 28 dBm
Low phase shift: 25° at 3 GHz
Pin compatible to the HMC1122
See data sheet for additional features

HMC624A-EP Supports defense and aerospace applications (AQEC standard)

Download HMC624A-EP data sheet (pdf)
Extended industrial temperature range: −55°C to +105°C
Controlled manufacturing baseline
1 assembly/test site
1 fabrication site
Product change notification
Qualification data available upon request

The HMC624A is a 6-bit digital attenuator with a 31.5 dB attenuation control range in 0.5 dB steps.

The HMC624A offers excellent attenuation accuracy and high input linearity over the specified frequency range from 100 MHz to 6.0 GHz. However, this digital attenuator features external ac grounding capacitors to extend the operation below 100 MHz.

The HMC624A is integrated with two dies: a CMOS driver and a gallium arsenide (GaAs) RF attenuator. The CMOS driver provides both serial and parallel control of the RF attenuator. The device also features a user-selectable power-up state and a serial output port for cascading other serial controlled components.

The HMC624A operates with a single positive supply voltage from 3 V to 5 V, and provides a CMOS-/TTL-compatible control interface.

The HMC624A comes in a RoHS compliant, compact, 4 mm × 4 mm LFCSP package, and is pin compatible to the HMC1122 except for the ACGx pins.

Applications

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

Part Models: 4
1ku List Price: price unavailable

Documentation

Data Sheet 3

HMC624A: 0.1 GHz to 6.0 GHz,0.5 dB LSB, 6-Bit, GaAs Digital Attenuator Data Sheet (Rev.B) 04/03/2017

HMC624A-EP: Enhanced Data Sheet (Rev.A) 07/11/2017

HMC624A-DSCC: Military Data Sheet 08/28/2017

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
HMC624ACPSZ-EP-PT	24-Lead LFCSP (4mm x 4mm x 0.85mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC624ACPSZ-EP-RL7	24-Lead LFCSP (4mm x 4mm x 0.85mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC624ALP4E	24-Lead LFCSP (4mm x 4mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC624ALP4ETR	24-Lead LFCSP (4mm x 4mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

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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