AD9223ARSZ

Overview

The AD9223ARSZ is a monolithic 12-bit analog-to-digital converter (ADC) from Analog Devices, 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 accuracy and guarantee no missing codes across the full operating temperature range. The device features a complete on-chip sample-and-hold amplifier and voltage reference, supporting both single-ended and differential input configurations. It operates on a single 5 V analog supply and accepts digital supplies ranging from 2.7 V to 5.25 V. Key performance metrics include a Signal-to-Noise Ratio (SNR) of 70 dB, Integral Nonlinearity (INL) of ±1.25 LSB max, and Differential Nonlinearity (DNL) of ±0.75 LSB max. Power consumption is typically 100 mW.

Feature Summary

• Multistage differential pipelined architecture with digital output error correction logic for 12-bit accuracy.
• Integrated high-performance, low-noise sample-and-hold amplifier (SHA) and programmable voltage reference.
• Flexible analog input structure supporting both single-ended and differential interfaces with varying input spans.
• Straight binary output data format with an out-of-range (OTR) indicator for overflow detection.

Applications

• Imaging systems requiring high-speed digitization.
• Communications systems employing Direct-IF down conversion.
• Medical instrumentation utilizing multiplexed channels.
• General-purpose data-acquisition systems.

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notifications, as availability may be restricted. Ensure proper electrostatic discharge (ESD) handling procedures are followed during storage and installation to prevent damage to the sensitive CMOS circuitry.

Selection Notes

Select the AD9223ARSZ when a balance between moderate speed (3.0 MSPS) and low power consumption (100 mW) is required within the AD922x family. Choose this model over the AD9221 (1.5 MSPS) if higher throughput is needed, or over the AD9220 (10.0 MSPS) if lower power dissipation is critical. Ensure the application supports the parallel digital interface and 28-lead SSOP package constraints.

Part Context

The AD9223ARSZ belongs to the AD9221/AD9223/AD9220 product family, which shares identical pinouts, packages, and interface options. This family allows designers to scale performance up or down based on specific sampling rate and power requirements without changing the board layout. All members utilize the same CMOS pipelined architecture and offer flexible input configurations.

Replacement Considerations

The AD9221AR and AD9220AR are pin-compatible alternatives within the same family, offering 1.5 MSPS and 10.0 MSPS sampling rates respectively. These can serve as functional substitutes if system timing or power budgets allow for adjustment, provided the dynamic performance differences are acceptable for the application.