AD9223AR

Overview

The AD9223AR is a monolithic 12-bit analog-to-digital converter operating at a maximum sampling rate of 3.0 MSPS. It utilizes a multistage differential pipelined architecture with digital output error correction logic to ensure no missing codes across the full operating temperature range. The device features an on-chip sample-and-hold amplifier and programmable voltage reference, supporting both single-ended and differential input configurations. It operates from a single 5 V analog supply and a 2.7 V to 5.25 V digital supply, consuming 100 mW typical power. Key performance metrics include a Signal-to-Noise Ratio of 70 dB, Integral Nonlinearity of ±0.5 LSB, and Differential Nonlinearity of ±0.3 LSB.

Feature Summary

• Multistage differential pipelined architecture with digital output error correction logic for guaranteed linearity
• Integrated low-noise sample-and-hold amplifier and programmable voltage reference
• Flexible analog input structure supporting single-ended or differential interfaces
• Straight binary output data format with out-of-range indicator

Applications

• Imaging systems
• Communications equipment
• Medical instrumentation
• Data-acquisition systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature range. The 'AR' suffix indicates a 28-lead SOIC package with a -40°C to +85°C operating range. Confirm availability status as product lifecycles may change. Ensure ESD precautions are observed during handling due to the sensitivity of the CMOS process.

Selection Notes

Select the AD9223AR when a 3.0 MSPS sampling rate is required within the AD922x family. Compare against the AD9221 (1.5 MSPS) for lower power applications or the AD9220 (10.0 MSPS) for higher speed requirements. All family members share identical pinouts and interface options, allowing for flexible component selection based on dynamic performance and power constraints without redesigning the board layout.

Part Context

The AD9223AR belongs to the AD9221/AD9223/AD9220 product family of complete 12-bit A/D converters. These devices share the same CMOS pipelined architecture, interface options, and 28-lead package footprints. They provide a scalable solution for system designers, enabling upward or downward selection based on specific sampling rate and power dissipation needs while maintaining pin compatibility.

Replacement Considerations

The AD9221AR and AD9220AR are pin-compatible replacements within the same family, offering 1.5 MSPS and 10.0 MSPS sampling rates respectively. Verify that the alternative sampling rate meets the application's throughput requirements and that the power consumption differences are acceptable for the thermal design.