AD9203ARUZ

Overview

The AD9203ARUZ is a monolithic, low-power, single-supply 10-bit analog-to-digital converter featuring a 40 MSPS sampling rate. It utilizes a multistage differential pipeline architecture and includes an on-chip voltage reference. The device operates within a supply range of 2.7 V to 3.6 V, consuming 74 mW at maximum speed and reducing to 17 mW at 5 MSPS. It guarantees no missing codes over the industrial temperature range of -40°C to +85°C. The input span is adjustable between 1 V and 2 V p-p for both differential and single-ended configurations.

Feature Summary

• Multistage differential pipeline architecture ensures high-speed conversion with guaranteed no missing codes across the full operating temperature range.
• Integrated programmable internal voltage reference allows flexible configuration for varying DC accuracy and temperature drift requirements.
• Adjustable power consumption enables significant energy savings at lower sampling rates through external resistor control.
• Built-in clamp circuit facilitates DC restoration for video signals when operating in single-ended input mode.

Applications

• CCD imaging systems
• Video processing equipment
• Portable instrumentation
• IF and baseband communications
• Medical ultrasound

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and reel specifications. Ensure that the selected variant matches the required thermal characteristics and lead finish for your assembly process. Cross-reference the datasheet revision to confirm all electrical parameters align with your design constraints before finalizing procurement.

Selection Notes

Select this component for applications requiring a balance of high resolution and moderate sampling speeds under strict power constraints. Consider the adjustable input range and reference options to simplify front-end driver design. Evaluate the available digital output formats and clocking flexibility to ensure compatibility with your system's data acquisition interface.

Part Context

The AD9203 belongs to Analog Devices' family of low-power, high-speed ADCs designed for portable and battery-operated applications. It shares architectural similarities with other pipeline converters but distinguishes itself through its integrated reference and adjustable power modes. This part serves as a bridge between high-performance industrial converters and ultra-low-power sensor interfaces.

Replacement Considerations

Direct replacements include the AD9203WARUZRL7 and AD9203ARUZRL7. Verify pinout compatibility and electrical specifications against the target application requirements before substitution.

FAQ

How is the power consumption of the AD9203 adjusted?

Power consumption can be reduced by connecting an external resistor between the PWRCON pin and AVSS. This feature is particularly effective when operating at sample rates significantly below the maximum 40 MSPS.

What digital output formats are supported by the AD9203?

The AD9203 supports straight binary and two's complement output formats. The selection is determined by the logic level applied to the DFS (Data Format Select) pin.

Can the AD9203 perform undersampling?

Yes, the AD9203 supports IF undersampling with input frequencies up to 130 MHz, allowing it to digitize higher frequency signals at lower sampling rates.