AD9233BCPZ-125

Overview

The AD9233BCPZ-125 is a monolithic, single-supply, 12-bit analog-to-digital converter (ADC) from Analog Devices Inc. It operates at a maximum sampling rate of 125 MSPS with a 1.8 V analog supply and a 1.8 V to 3.6 V digital output driver supply. The device features a differential input with a 650 MHz bandwidth, an on-chip voltage reference, and a high-performance sample-and-hold amplifier. Key performance metrics include a Signal-to-Noise Ratio (SNR) of 69.5 dBc and a Spurious-Free Dynamic Range (SFDR) of 85 dBc at a 70 MHz input frequency. It utilizes a multistage differential pipeline architecture with output error correction logic to ensure no missing codes across the full operating temperature range.

Feature Summary

• Multistage differential pipeline architecture with output error correction logic for guaranteed 12-bit accuracy
• Integrated duty cycle stabilizer (DCS) to maintain performance over wide clock pulse width variations
• Flexible analog input supporting user-selectable ranges and offset binary, Gray code, or twos complement data formats
• Standard serial port interface for configuration of data formatting, power-down modes, and internal reference selection

Applications

• Ultrasound equipment
• IF sampling in communications receivers
• Battery-powered instruments
• Hand-held scopemeters
• Low cost digital oscilloscopes

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific ordering suffixes that may indicate tape-and-reel packaging versus tray quantities. Ensure the supplier provides valid traceability documentation matching the Analog Devices part number.

Selection Notes

Select this model when a 125 MSPS sampling rate is required alongside low power consumption and high dynamic range. Consider the pin compatibility with the AD9246 if future migration to a 14-bit resolution is planned. Evaluate the need for the integrated voltage reference against external precision reference requirements for specific system noise budgets.

Part Context

This component belongs to the AD9233 family of high-speed, low-power ADCs designed for 1.8 V operation. It shares architectural similarities with other members like the AD9233BCPZ-80 and AD9233BCPZ-105, differing primarily in maximum conversion rates. The device is housed in a 48-lead LFCSP package suitable for surface-mount assembly.

Replacement Considerations

The AD9233BCPZ-105 and AD9233BCPZ-80 are pin-compatible alternatives within the same family offering lower maximum sampling rates. For higher resolution requirements, the AD9246 series serves as a pin-compatible upgrade path from 12 bits to 14 bits.