AD9220ARZ

Overview

The AD9220ARZ is a monolithic 12-bit analog-to-digital converter featuring a 10 MSPS sampling rate and a multistage differential pipelined architecture with digital output error correction. 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 device guarantees no missing codes across the full operating temperature range of -40°C to +85°C. Key electrical specifications include a typical Integral Nonlinearity (INL) of ±0.5 LSB, Differential Nonlinearity (DNL) of ±0.3 LSB, and an input-referred noise of 0.09 LSB rms at a 2.5 V reference. Dynamic performance metrics feature a Signal-to-Noise and Distortion Ratio (SINAD) of 70 dB and a Spurious-Free Dynamic Range (SFDR) of 88 dB.

Feature Summary

• Integrated sample-and-hold amplifier and programmable voltage reference for simplified system design
• Flexible analog input structure supporting both single-ended and differential configurations
• Straight binary data output format with an out-of-range indicator signal
• Guaranteed 12-bit linearity and no missing codes over the industrial temperature range

Applications

• Direct IF down conversion in communication systems
• Imaging and medical data acquisition systems
• Multiplexed sensor interfaces requiring high channel accuracy

Procurement Notes

Verify the specific package variant when ordering; the AR suffix denotes a 28-lead SOIC package, while the RS suffix indicates a 28-lead SSOP package. Confirm that the required sampling rate matches the AD9220 specification of 10 MSPS, as other family members like the AD9221 or AD9223 offer lower rates. Ensure ESD precautions are observed during handling due to the sensitivity of the CMOS process.

Selection Notes

Select this component when a balance between moderate speed and high DC accuracy is required within a single-supply environment. The AD9220 is suitable for applications needing up to 10 MSPS throughput where 12-bit resolution is mandatory. Consider the AD9223 or AD9221 if lower power consumption or reduced sampling rates better fit the system constraints, as they share identical pinouts and interface logic.

Part Context

The AD9220ARZ belongs to the AD9221/AD9223/AD9220 product family from Analog Devices. These devices share a common CMOS pipelined architecture, pinout, and interface options, allowing for flexible upward or downward selection based on performance needs. While the AD9220 provides the highest speed in the group at 10 MSPS, it also exhibits higher power dissipation compared to the slower variants.

Replacement Considerations

The AD9220ARS is a pin-compatible alternative offering the same 10 MSPS performance but housed in a 28-lead SSOP package instead of the SOIC form factor.