AD9224ARSZ

Overview

The AD9224ARSZ is a monolithic, single-supply 12-bit, 40 MSPS analog-to-digital converter manufactured by Analog Devices Inc. It utilizes a multistage differential pipelined architecture with on-chip sample-and-hold and voltage reference circuits. The device operates on a +5 V analog supply and supports digital driver supplies from 2.85 V to 5.25 V, ensuring compatibility with 3 V and 5 V logic families. Key electrical specifications include a typical Signal-to-Noise Ratio (SNR) of 68.4 dB at 10 MHz input, a Spurious-Free Dynamic Range (SFDR) of 81 dB, and a full power bandwidth of 120 MHz. Power consumption ranges from 415 mW to 425 mW depending on the internal reference configuration. The component guarantees no missing codes across its operating temperature range of -40°C to +85°C and is housed in a 28-lead SSOP package.

Feature Summary

• Multistage differential pipelined architecture with integrated output error correction logic for high-speed precision.
• Flexible analog input structure supporting both single-ended and differential configurations with programmable input spans.
• On-board programmable bandgap voltage reference with options for external reference integration.
• Out-of-range (OTR) indicator pin providing overflow detection capabilities.

Applications

• Communications systems requiring high-speed signal digitization
• Imaging applications utilizing wideband input structures
• Medical ultrasound equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm temperature range and package type. Ensure electrostatic discharge precautions are implemented during handling, as the device is sensitive to static charges. Confirm that the digital driver supply voltage aligns with the target logic family requirements before finalizing procurement.

Selection Notes

Select this component when a 12-bit resolution at 40 MSPS is required within a single-supply design. Consider the 120 MHz full power bandwidth and low aperture jitter for applications demanding high dynamic performance. Evaluate the power dissipation characteristics relative to system thermal constraints, noting the separate analog and digital supply requirements for optimal noise isolation.

Part Context

The AD9224 belongs to a family of high-speed CMOS analog-to-digital converters designed for cost-effective, low-power implementations. It shares pin compatibility with related models such as the AD9220, AD9221, AD9223, and AD9225, facilitating potential design upgrades or variations within the same product line while maintaining board layout consistency.

Replacement Considerations

Publicly confirmed pin-compatible substitutes include the AD9220, AD9221, AD9223, and AD9225. Verify specific performance parameters and temperature ranges for these alternatives against the original design requirements before substitution.