AD9221ARSZ-REEL

Overview

The AD9221ARSZ-REEL is a monolithic 12-bit analog-to-digital converter from Analog Devices, operating at a maximum sampling rate of 1.5 MSPS. It features a single 5 V analog supply and a digital supply range of 2.7 V to 5.25 V, with typical power consumption of 59 mW. The device utilizes a multistage differential pipelined architecture with digital error correction logic, ensuring no missing codes across the full operating temperature range. Key electrical specifications include a typical Integral Nonlinearity (INL) of ±0.4 LSB, Differential Nonlinearity (DNL) of ±0.3 LSB, and an input-referred noise of 0.09 LSB rms at VREF = 2.5 V. Dynamic performance metrics feature a Signal-to-Noise and Distortion Ratio (SINAD) of 70 dB and a Spurious-Free Dynamic Range (SFDR) of 86 dB.

Feature Summary

• Multistage differential pipelined architecture with integrated sample-and-hold amplifier and programmable voltage reference for high linearity and low noise.
• Flexible analog input structure supporting both single-ended and differential configurations with AC or DC coupling capabilities.
• Straight binary parallel output data interface compatible with 3.3 V and 5 V logic families, featuring an out-of-range indicator.

Applications

• Imaging systems requiring high-resolution data acquisition
• Medical instrumentation utilizing precision signal processing
• Data-acquisition systems demanding accurate DC and AC performance

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and reel configuration. Ensure compatibility with system voltage requirements and thermal management needs before procurement. Cross-reference part numbers with official distributor catalogs to validate authenticity and revision status.

Selection Notes

Select this component when a low-power, single-supply 12-bit ADC is required for applications up to 1.5 MSPS. Consider the AD9223 or AD9220 if higher sampling rates are necessary, as they share the same pinout and interface but offer increased speed and power dissipation. Evaluate input span requirements against internal or external reference options.

Part Context

This device belongs to the AD922x family, which includes the AD9223 and AD9220. These components share identical pinouts, packages, and interface options, allowing for flexible design upgrades or downgrades based on sampling rate and power constraints within the same product ecosystem.

Replacement Considerations

The AD9223ARSZ and AD9220ARSZ are pin-compatible alternatives within the same family. Verify that the higher sampling rates of these substitutes align with system clocking capabilities and power budget limitations.