AD9272BSVZ-80

Overview

The AD9272BSVZ-80 is an octal analog front-end integrated circuit featuring eight independent channels, each comprising a low noise preamplifier (LNA), variable gain amplifier (VGA), antialiasing filter (AAF), and 12-bit analog-to-digital converter (ADC). It supports sampling rates up to 80 MSPS with a typical signal-to-noise ratio of 70 dB and spurious-free dynamic range of 75 dB. The device includes an 8x8 differential crosspoint switch for continuous wave Doppler applications. Power consumption is 195 mW per channel at 40 MSPS in full TGC mode. It operates over the industrial temperature range of −40°C to +85°C and is housed in a 100-lead TQFP package.

Feature Summary

• Eight integrated channels with LNA, VGA, AAF, and 12-bit ADC
• Sampling rate up to 80 MSPS with SNR of 70 dB and SFDR of 75 dB
• Integrated 8x8 differential crosspoint switch for CW Doppler support
• Programmable second-order antialiasing low-pass filter from 8 MHz to 18 MHz

Applications

• Medical imaging and ultrasound systems
• Automotive radar applications

Procurement Notes

Verify the specific speed grade suffix (-80) against the manufacturer's current ordering guide to confirm availability and lead times. Ensure that the 100-lead TQFP package dimensions match the target PCB footprint requirements. Confirm power supply decoupling strategies for AVDD1, AVDD2, and DRVDD rails to maintain specified performance levels.

Selection Notes

Select the AD9272BSVZ-80 when system requirements demand sampling rates up to 80 MSPS. Compare power dissipation characteristics against lower speed grades if thermal management is constrained. Verify that the single-ended input voltage range and PGA gain settings align with the sensor interface specifications.

Part Context

This component belongs to the AD9272 family of octal ultrasound ADCs. Other variants include the AD9272BSVZ-40 and AD9272BSVZ-65, which offer lower maximum sampling rates of 40 MSPS and 65 MSPS respectively. All variants share the same pinout and functional architecture but differ in high-speed performance specifications.

Replacement Considerations

Direct replacements within the same family are the AD9272BSVZ-40 and AD9272BSVZ-65. These parts are pin-compatible but operate at lower maximum clock frequencies. System timing constraints must be verified to ensure compatibility with the reduced bandwidth.