AD9226ASTRL

Overview

The AD9226ASTRL is a monolithic, single-supply, 12-bit, 65 MSPS analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It utilizes a multistage differential pipelined architecture with patented input stage and output error correction logic to ensure 12-bit accuracy at maximum data rates without missing codes across the full operating temperature range. The device integrates a high-performance sample-and-hold amplifier (SHA) and an on-chip voltage reference. It supports both differential and single-ended inputs, offering flexibility for imaging and communications systems. Key electrical specifications include a Signal-to-Noise Ratio of 69 dB at 31 MHz input frequency, Spurious-Free Dynamic Range of 85 dB, and low power dissipation of 475 mW. The component operates with a single 5 V analog supply and a 3 V or 5 V digital driver supply.

Feature Summary

• Patented on-chip sample-and-hold amplifier with full power bandwidth of 750 MHz
• Integrated clock duty cycle stabilizer for immunity to varying clock pulsewidths
• Programmable internal voltage reference with external reference option
• Straight binary or two's complement output data format selection

Applications

• Single-channel communication applications with IF undersampling
• Imaging systems requiring high-speed data acquisition
• Direct IF conversion to digital in spectral-based applications

Procurement Notes

Verify the specific ordering suffix 'RL' against official Analog Devices documentation to confirm reel packaging configuration. Ensure compatibility with the 48-lead LQFP package requirements. Confirm that the selected variant meets the -40°C to +85°C industrial temperature range specifications required for your system environment.

Selection Notes

Select this component when a balance of high speed (65 MSPS) and resolution (12-bit) is required with low power consumption. Consider the AD9226 for designs needing flexible input configurations (single-ended or differential) and integrated reference capabilities. Evaluate the pipeline latency of 7 clock cycles and the need for external filtering based on the target input frequency and SNR requirements.

Part Context

The AD9226 belongs to a family of pin-compatible ADCs from Analog Devices, including the AD9220, AD9221, AD9223, AD9224, and AD9225. These devices share similar form factors and interface characteristics but differ in resolution and sampling rates. The AD9226 specifically targets applications requiring 12-bit performance at 65 MSPS, filling a niche between lower-resolution faster converters and higher-resolution slower ones within the same package options.

Replacement Considerations

Pin-compatible alternatives include the AD9220, AD9221, AD9223, AD9224, and AD9225. Verify that the substitute part meets the specific resolution and sampling rate requirements of the design. Check datasheets for differences in power consumption, input span, and reference configuration before substitution.