AD9273BBCZ-50

Overview

The AD9273BBCZ-50 is an octal analog-to-digital converter (ADC) featuring integrated low noise preamplifiers (LNA), variable gain amplifiers (VGA), and antialiasing filters (AAF). It provides eight channels of signal conditioning and conversion at sampling rates up to 50 MSPS with 12-bit resolution. The device includes a built-in 8x8 differential crosspoint switch for continuous wave Doppler applications. Key electrical specifications include a typical Signal-to-Noise Ratio (SNR) of 63.5 dB, a full-scale output of 4.4 V p-p differential, and power consumption of 109 mW per channel in Time Gain Control (TGC) mode. It operates from 1.8 V and 3.0 V supplies within the -40°C to +85°C temperature range.

Feature Summary

• Octal architecture integrating LNA, VGA, AAF, and 12-bit ADC in a single package
• Integrated 8 × 8 differential crosspoint switch supporting CW Doppler modes
• Programmable second-order antialiasing filter with cutoff frequencies from 8 MHz to 18 MHz
• Serial LVDS digital interface with data clock (DCO±) and frame clock (FCO±) outputs

Applications

• Medical imaging and ultrasound systems
• Automotive radar sensors

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or direct manufacturer channels. Confirm RoHS compliance status and check for moisture sensitivity labeling prior to soldering. Ensure ordering suffixes match specific speed grades and package requirements to avoid functional mismatches.

Selection Notes

Select the AD9273BBCZ-50 variant for maximum 50 MSPS sampling performance. Evaluate thermal impedance values based on PCB layout and airflow conditions to manage power dissipation. Verify that system clock inputs support LVPECL, CMOS, or LVDS logic levels required for optimal operation.

Part Context

This component belongs to the AD9273 family of highly integrated signal chain converters. It is designed to reduce system complexity by consolidating front-end analog processing with high-speed digitization. The device is fabricated using advanced CMOS technology to achieve low power consumption and small footprint dimensions suitable for space-constrained designs.

Replacement Considerations

Cross-reference with other AD9273 speed grades (e.g., AD9273-25, AD9273-40) if lower sampling rates are sufficient. Verify pinout compatibility when transitioning between TQFP and BGA packages within the same product family.