AD9225ARSZRL

Overview

The AD9225ARSZRL is a monolithic, single-supply, 12-bit analog-to-digital converter operating at a maximum sampling rate of 25 MSPS. It features a multistage differential pipelined architecture with output error correction logic to ensure no missing codes across the full operating temperature range. The device integrates a high-performance sample-and-hold amplifier and an on-chip voltage reference. It accepts differential or single-ended analog inputs and provides straight binary digital output data compatible with 3 V logic families. Power consumption is specified at 280 mW with an external reference.

Feature Summary

• Integrates a complete 12-bit, 25 MSPS ADC function in a single chip using a cost-effective CMOS process.
• Features a versatile differential sample-and-hold amplifier input configurable for single-ended or differential applications.
• Includes an out-of-range indicator bit to signal overflow conditions relative to the input range.
• Operates from a single 5 V analog supply while accommodating separate 3 V to 5 V digital logic supplies.

Applications

• Communications systems requiring high-speed data acquisition
• Imaging applications utilizing multiplexed channels
• Medical ultrasound equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and reel specifications. Ensure that the component meets all applicable environmental compliance standards required for the target assembly process. Cross-reference the datasheet revision to confirm pinout compatibility with existing system designs before finalizing procurement orders.

Selection Notes

Select this component when a low-power, high-speed 12-bit conversion solution is required for single-supply systems. The integrated sample-and-hold amplifier simplifies front-end driver design by accepting both differential and single-ended signals. Consider the internal reference options if board space is limited, or utilize an external reference for applications demanding enhanced accuracy and lower temperature drift characteristics.

Part Context

The AD9225 belongs to a family of monolithic A/D converters fabricated on a cost-effective CMOS process. It is pin-compatible with other devices in the series, such as the AD9220, AD9221, AD9223, and AD9224, allowing for potential design flexibility within similar performance tiers. The device combines high-speed precision analog circuits with high-density logic to achieve resolution comparable to bipolar implementations at significantly lower power levels.

Replacement Considerations

The AD9225AR, AD9225ARS, AD9225ARSRL, and AD9225ARSZ are functionally equivalent parts within the same product family. Selection between these variants depends primarily on the required packaging format (SOIC vs. SSOP) and the preferred shipping method (tube vs. tape and reel). Verify that the specific suffix matches the mechanical constraints of the printed circuit board layout.