AD9220AR

Overview

The AD9220AR is a monolithic, single-supply 12-bit analog-to-digital converter manufactured by Analog Devices Inc. It operates at a maximum sampling rate of 10 MSPS with a typical power dissipation of 250 mW on a 5 V supply. The device features a multistage differential pipelined architecture with digital output error correction logic to guarantee no missing codes over the full operating temperature range. It includes an on-chip sample-and-hold amplifier and voltage reference, supporting both single-ended and differential input configurations. The part is housed in a 28-lead SOIC package.

Feature Summary

• Monolithic 12-bit resolution with true linearity and low noise performance
• Flexible analog input structure supporting single-ended or differential modes
• Integrated high-performance sample-and-hold amplifier and voltage reference
• Straight binary output data format with out-of-range indicator

Applications

• Imaging systems requiring high-speed digitization
• Communications systems employing direct-IF down conversion
• Medical instrumentation and data-acquisition systems

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status and check for obsolescence notices as the AD9220AR may be discontinued. Ensure proper ESD handling procedures are followed during storage and installation to prevent damage to the electrostatic sensitive device.

Selection Notes

Select the AD9220AR when a 10 MSPS sampling rate is required within the AD9221/AD9223/AD9220 family. Compare power consumption and dynamic performance against lower-speed variants like the AD9221 (1.5 MSPS) or AD9223 (3.0 MSPS) based on specific application bandwidth needs. Ensure compatibility with 5 V analog and 2.7 V to 5.25 V digital supply rails.

Part Context

The AD9220AR belongs to the AD9221/AD9223/AD9220 product family from Analog Devices. These devices share identical pinouts, interface options, and packages, allowing for flexible upward or downward selection based on performance, sample rate, and power requirements. They utilize a cost-effective CMOS process to achieve hybrid-level performance at reduced power.

Replacement Considerations

The AD9220ARS is a pin-compatible alternative in the SSOP package. Other family members include the AD9221AR and AD9223AR, which offer lower sampling rates of 1.5 MSPS and 3.0 MSPS respectively, with corresponding reductions in power consumption.