AD9231BCPZRL7-65

Overview

The AD9231BCPZRL7-65 is a dual-channel, 12-bit analog-to-digital converter (ADC) from Analog Devices Inc., operating at a maximum sampling rate of 65 MSPS. It utilizes a multistage differential pipeline architecture with output error correction logic to ensure no missing codes across the full operating temperature range. The device features a patented sample-and-hold circuit and an on-chip voltage reference, supporting low power consumption of approximately 73 mW per channel at 80 MSPS. It accepts a 2 V p-p differential analog input and operates from a single 1.8 V analog supply with a separate digital driver supply ranging from 1.8 V to 3.3 V. The component is housed in a 64-lead RoHS-compliant LFCSP package.

Feature Summary

• Multistage differential pipeline architecture with output error correction logic for high accuracy
• Patented sample-and-hold circuit maintaining performance up to 200 MHz input frequencies
• Integrated on-chip voltage reference and duty cycle stabilizer for simplified system design
• Flexible serial port interface (SPI) for programmable data formatting and clock alignment

Applications

• Communications systems including GSM, EDGE, W-CDMA, LTE, CDMA2000, WiMAX, and TD-SCDMA
• Diversity radio systems and multimode digital receivers
• I/Q demodulation systems and smart antenna applications
• Portable medical imaging and ultrasound equipment
• Radar and LIDAR systems

Procurement Notes

Verify the specific ordering suffix RL7 confirms reel packaging when sourcing components. Confirm that the AD9231-65 speed grade matches the required 65 MSPS sampling rate for the target application. Ensure compatibility with the 64-lead LFCSP footprint during PCB layout. Check for RoHS compliance status as indicated in the manufacturer documentation.

Selection Notes

Select this model for applications requiring dual-channel conversion at 65 MSPS with 12-bit resolution. Consider the AD9231-80 variant if higher sampling rates are needed, or the AD9231-40/20 for lower power requirements. Evaluate the DRVDD supply voltage options to match the receiving logic family, as it supports both 1.8 V and 3.3 V levels. Verify thermal management needs based on the specified power dissipation values.

Part Context

The AD9231BCPZRL7-65 belongs to the AD9231 family of dual-channel ADCs. This series offers pin-compatible migration paths between different resolutions and speeds, such as the AD9268, AD9258, AD9251, and AD9204. The family shares a common 64-lead LFCSP package, facilitating design upgrades from 10-bit to 16-bit converters within the same form factor.

Replacement Considerations

Pin-compatible alternatives include the AD9231BCPZ-40, AD9231BCPZ-80, and other members of the AD9231 family. Verify that the replacement part meets the specific 65 MSPS speed grade requirement. Ensure the package type remains 64-lead LFCSP for direct board replacement.