AD9273BSVZRL-50

Overview

The AD9273BSVZRL-50 is an octal analog front-end integrated circuit manufactured by Analog Devices Inc. It integrates eight independent channels, each comprising a low noise preamplifier (LNA), a variable gain amplifier (VGA), a programmable antialiasing filter (AAF), and a 12-bit analog-to-digital converter (ADC). The device supports sampling rates up to 50 MSPS with a typical signal-to-noise ratio of 63.5 dB at full scale. It features a single-ended input configuration with a maximum input voltage range dependent on the selected LNA gain setting. Power consumption is specified at approximately 109 mW per channel in Time Gain Control mode.

Feature Summary

• Integrates eight complete signal chains including LNA, VGA, AAF, and 12-bit ADC within a single package.
• Features an 8x8 differential crosspoint switch designed to support continuous wave Doppler applications.
• Provides SPI-programmable LNA gains of 15.6 dB, 17.9 dB, or 21.3 dB and PGA gains ranging from 21 dB to 30 dB.
• Includes a programmable second-order low-pass antialiasing filter with cutoff frequencies adjustable between 8 MHz and 18 MHz.

Applications

• Medical imaging systems
• Ultrasound equipment
• Automotive radar sensors

Procurement Notes

Verify that the specific suffix '-50' corresponds to the 50 MSPS speed grade variant when sourcing components. Confirm the 'RL' designation indicates reel packaging for surface mount assembly. Ensure compatibility with the required 1.8 V and 3.0 V power supply rails during procurement planning.

Selection Notes

Select this component for designs requiring high channel density and low power consumption in ultrasound or radar architectures. The -50 speed grade is appropriate for systems demanding sampling rates up to 50 MSPS. Consider the 100-lead TQFP package dimensions if board space is constrained, as it houses all eight channels in a compact footprint.

Part Context

This part belongs to the AD9273 family of octal analog front ends. The AD9273 series is engineered to simplify the design of multi-channel data acquisition systems by integrating signal conditioning and conversion functions. It serves as a key component in high-performance signal chains where size and power efficiency are critical constraints.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.