AD9220ARZ-REEL

Overview

The AD9220ARZ-REEL is a monolithic 12-bit analog-to-digital converter from Analog Devices Inc., operating at a maximum sampling rate of 10 MSPS. It utilizes a multistage differential pipelined architecture with digital output error correction logic to ensure true 12-bit linearity and guarantee no missing codes across the full operating temperature range. The device features an integrated sample-and-hold amplifier and a programmable voltage reference, supporting input spans of 2 Vp-p or 5 Vp-p depending on the reference configuration. It operates on a single 5 V analog supply and a 2.7 V to 5.25 V digital supply, consuming approximately 254 mW of power. The component provides straight binary parallel data output along with an out-of-range indicator signal.

Feature Summary

• Multistage differential pipelined architecture with digital error correction for high accuracy
• Integrated sample-and-hold amplifier and programmable internal voltage reference
• Flexible analog input structure supporting both single-ended and differential configurations
• Straight binary output format with an out-of-range (OTR) overflow detection signal

Applications

• Imaging systems requiring high-speed digitization
• Communications equipment utilizing direct IF down conversion
• Medical instrumentation and diagnostic devices
• General-purpose data-acquisition systems

Procurement Notes

Verify that the ordering suffix matches the required package type, as the AD9220 family is available in both SOIC and SSOP variants. Confirm the specific model number corresponds to the 10 MSPS sampling rate variant rather than the lower speed alternatives within the same product family. Ensure ESD handling protocols are strictly followed during storage and assembly due to the sensitivity of the CMOS process.

Selection Notes

Select this component when a balance between high sampling speed and low power consumption is required for 12-bit resolution applications. Consider the AD9223 or AD9221 if lower sampling rates and reduced power dissipation are acceptable trade-offs for the system design. Evaluate the need for external versus internal voltage references based on specific temperature drift and DC accuracy requirements.

Part Context

This part belongs to the AD9221/AD9223/AD9220 product family, which shares identical pinouts, interface options, and packages. The family members differ primarily in their specified sampling rates and corresponding power consumption levels. This architectural commonality allows designers to easily scale performance up or down without redesigning the board layout or software interfaces.

Replacement Considerations

Direct substitutes within the same family include the AD9221ARSZ and AD9223ARSZ, which offer lower sampling rates but maintain pin compatibility. Other models may require circuit modifications due to differences in power consumption or dynamic performance characteristics.