AD9273XBCZ

Overview

The AD9273XBCZ is an octal, 12-bit analog-to-digital converter (ADC) from Analog Devices. It utilizes a pipeline architecture to provide eight independent channels with sampling rates up to 40 MSPS. The device features single-ended inputs and operates on dual power supplies of 1.8 V for digital logic and 1.8 V or 3 V for analog circuits. Key performance metrics include a signal-to-noise ratio (SNR) of 64 dB and a maximum power dissipation of 996 mW. It is housed in a CSPBGA-144 package suitable for surface mount applications.

Feature Summary

• Octal configuration with eight 12-bit pipeline ADC channels
• High-speed sampling capability up to 40 MSPS per channel
• Integrated SPI interface for control and monitoring
• Dual voltage operation: 1.8 V digital and 1.8/3 V analog supplies

Applications

• Wireless infrastructure transceiver architectures
• Software-defined radios
• Portable instrumentation systems

Procurement Notes

Verify the specific suffix letter corresponding to the desired sampling rate variant, as the 'X' placeholder indicates multiple speed grades within the AD9273 family. Confirm availability status directly with the manufacturer or authorized distributors, as supply levels may vary by region. Ensure compliance with RoHS directives and moisture sensitivity level (MSL) handling requirements during storage and assembly.

Selection Notes

Select the appropriate suffix based on the required sampling frequency; for instance, the '-40' suffix denotes 40 MSPS operation while other variants offer lower speeds. Evaluate the trade-off between SNR performance and power consumption, noting that higher sampling rates generally increase power dissipation. Ensure the system design accommodates the CSPBGA-144 package footprint and thermal management needs given the nearly 1 W power dissipation.

Part Context

This component belongs to the AD9273 series of high-performance octal ADCs designed for demanding data acquisition tasks. It shares architectural similarities with other members of the family but differs in packaging and specific speed grades. The device is part of Analog Devices' portfolio aimed at simplifying high-channel-count data conversion interfaces through integrated serial communication protocols.

Replacement Considerations

Direct pin-compatible replacements within the same package are limited. Consider adjacent speed grades such as the AD9273BBCZ-25 or AD9273BSVZ-25 if lower sampling rates suffice. Verify that any substitute maintains the required 12-bit resolution and octal channel count.