AD9226ASTZRL

Overview

The AD9226ASTZRL is a monolithic, single-supply, 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates at a maximum sampling rate of 65 MSPS and features an on-chip high-performance sample-and-hold amplifier with a full power bandwidth of 750 MHz. The device utilizes a multistage differential pipelined architecture with output error correction logic to ensure no missing codes across the operating temperature range. It accepts differential or single-ended analog inputs and provides parallel digital outputs in straight binary or two's complement formats. Power consumption is specified at 475 mW with a single 5 V analog supply and a separate 3 V to 5.25 V digital driver supply.

Feature Summary

• Patented on-chip sample-and-hold amplifier supporting both differential and single-ended input configurations for flexible system interfacing.
• Integrated clock duty cycle stabilizer ensures conversion immunity to varying clock pulse widths.
• Out-of-range (OTR) output bit indicates when the input signal exceeds the ADC's defined input range.
• Programmable internal voltage reference allows selection between 1 V and 2 V modes for system design flexibility.

Applications

• IF undersampling schemes in single-channel communication systems
• Imaging systems requiring high-speed analog-to-digital conversion
• Direct IF conversion to digital architectures

Procurement Notes

Verify the component designation against official Analog Devices documentation to confirm the specific package type and temperature rating. Ensure that the ordering suffix corresponds to the required tape and reel configuration if applicable. Cross-reference the part number with current manufacturer datasheets to validate availability and any potential revisions to the specifications before finalizing procurement plans.

Selection Notes

Select this component for applications requiring 12-bit resolution at speeds up to 65 MSPS with low power dissipation. Consider the 750 MHz analog input bandwidth for high-frequency signal acquisition. Verify compatibility with the available clock sources and ensure the digital interface logic levels match the DRVDD supply voltage. Evaluate the need for external versus internal voltage references based on system noise requirements.

Part Context

The AD9226 is part of a family of pin-compatible 12-bit ADCs from Analog Devices, including the AD9220, AD9221, AD9223, AD9224, and AD9225. These devices share similar architectural features but may differ in sampling rates or performance characteristics. The ASTZRL variant specifically denotes the 48-lead LQFP package option within this product line.

Replacement Considerations

The AD9226 is pin-compatible with the AD9220, AD9221, AD9223, AD9224, and AD9225. Substitution should be verified against the specific performance requirements of the target application, particularly regarding sampling speed and dynamic range specifications.