AD9244BSTZ-65

Overview

The AD9244BSTZ-65 is a monolithic, single 5 V supply, 14-bit, 65 MSPS analog-to-digital converter featuring an on-chip high-performance sample-and-hold amplifier and voltage reference. It utilizes a multistage differential pipelined architecture with output error correction logic to ensure accuracy and guaranteed no missing codes across the industrial temperature range of –40°C to +85°C. The device supports a 750 MHz analog input bandwidth and accepts a 1 V to 2 V p-p differential full-scale analog input range. Power consumption is specified at 550 mW at maximum sampling rates. Digital outputs are available in straight binary or two's complement formats, compatible with 3.3 V or 5 V driver supplies.

Feature Summary

• Multistage differential pipelined architecture with output error correction logic for 14-bit accuracy
• On-chip programmable voltage reference and high-performance sample-and-hold amplifier
• Out-of-range indicator signal for overflow detection
• Clock duty cycle stabilizer for improved performance with asymmetric clock signals

Applications

• Communication subsystems including microcell and picocell infrastructure
• Medical imaging equipment requiring high-end data acquisition
• Test and measurement instrumentation systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature grade. Ensure that the selected variant matches the required sampling rate specification for the target application design. Cross-reference the datasheet revision history to validate any recent changes to electrical characteristics or pin configurations before finalizing procurement orders.

Selection Notes

Select this component when a single 5 V supply operation is required alongside high-speed 14-bit resolution. Consider the internal reference capabilities if external precision references are not feasible. Evaluate the power consumption requirements against system thermal constraints, noting the difference between DC and sine wave input power dissipation levels during initial design phases.

Part Context

This part belongs to the AD9244 series of high-speed ADCs from Analog Devices. It offers pin compatibility with the 12-bit, 65 MSPS AD9226, facilitating seamless migration for existing designs requiring higher resolution. The device is fabricated on an advanced CMOS process and is housed in a 48-lead LQFP package suitable for surface mount applications.

Replacement Considerations

The AD9244BSTZ-40 serves as a lower-speed alternative within the same family, operating at 40 MSPS while maintaining identical pinouts and functionality. Designers migrating from the AD9226 can utilize this component for a direct upgrade path without altering the board layout.