AD9278BBCZ

Overview

The AD9278BBCZ is an octal analog front-end integrated circuit designed for medical ultrasound and automotive radar applications. It integrates eight independent channels, each containing a low-noise preamplifier (LNA), variable gain amplifier (VGA), antialiasing filter (AAF), and a 12-bit pipeline analog-to-digital converter (ADC). The device supports sampling rates up to 65 MSPS with a signal-to-noise ratio of 70 dB. Power supplies include AVDD1 at 1.8 V, AVDD2 at 3.0 V, and DRVDD at 1.8 V. Total power dissipation in TGC mode reaches 996 mW. The component is housed in a 144-ball CSP-BGA package measuring 10 mm × 10 mm.

Feature Summary

• Eight-channel architecture integrating LNA, VGA, AAF, ADC, and CW I/Q demodulator
• 12-bit resolution with SNR of 70 dB at sampling rates up to 65 MSPS
• Low power consumption: 88 mW per channel in TGC mode; 32 mW per channel in CW mode
• Flexible power-down modes with fast recovery from standby (<2 μs)

Applications

• Medical ultrasound beamformers
• Automotive radar systems

Procurement Notes

Verify the specific ordering suffix BBCZ against the manufacturer's current data sheet to confirm pinout and electrical specifications. Confirm availability status through authorized distributors as supply levels may vary. Ensure compliance with RoHS directives and moisture sensitivity level requirements during storage and soldering processes.

Selection Notes

Select this component for designs requiring high integration and low power in small form factors. The device supports both Time Gain Compensation (TGC) and Continuous Wave (CW) Doppler modes. Ensure the system clock input supports LVDS or LVPECL logic levels. Verify that the required channel count matches the eight available channels and that the 10 mm × 10 mm package fits the PCB layout constraints.

Part Context

The AD9278 belongs to Analog Devices' family of highly integrated RF agile transceivers and analog front-ends. It is specifically optimized for applications demanding high dynamic range and low noise figure within a compact footprint. The device simplifies system design by consolidating multiple discrete components into a single chip, reducing board space and assembly complexity.

Replacement Considerations

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