AD9244BSTZ-40

Overview

The AD9244BSTZ-40 is a monolithic, single 5 V supply, 14-bit analog-to-digital converter with a maximum sampling rate of 40 MSPS. It integrates a high-performance sample-and-hold amplifier and a programmable voltage reference. The device utilizes a multistage differential pipelined architecture with output error correction logic to ensure accuracy and guarantees no missing codes over the full operating temperature range. It features a 750 MHz analog input bandwidth and supports both straight binary and two's complement data formats. Power consumption is specified at 300 mW at 40 MSPS. The component operates within an industrial temperature range of –40°C to +85°C and is housed in a 48-lead LQFP package.

Feature Summary

• Integrates on-chip sample-and-hold amplifier and voltage reference for simplified system design
• Supports flexible clock inputs with duty cycle stabilizer and output-enable function
• Provides out-of-range indicator to detect overflow conditions relative to input range
• Offers pin compatibility for seamless migration from 12-bit, 65 MSPS predecessors

Applications

• Communication subsystems including microcell and picocell infrastructure
• Medical imaging equipment requiring high precision and speed
• High-end imaging systems
• Test and measurement equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm the exact sampling rate variant and package type. Ensure that the procurement documentation matches the required industrial temperature range specifications. Confirm power supply requirements align with the single 5 V analog and separate digital driver supply needs before finalizing orders.

Selection Notes

Select this component when a 14-bit resolution and 40 MSPS sampling rate are required with low power consumption. Consider the integrated reference and SHA if board space is limited. Evaluate the 750 MHz analog bandwidth for IF sampling applications. Verify that the 48-lead LQFP package fits the PCB layout constraints and that the digital interface logic levels match the DRVDD supply voltage.

Part Context

The AD9244 belongs to Analog Devices' family of high-speed, high-resolution ADCs designed for demanding signal processing tasks. It serves as a bridge between lower-resolution converters and higher-speed alternatives, offering a balance of precision and throughput. The BSTZ-40 designation specifically identifies the 40 MSPS version of this 14-bit pipeline converter, distinct from the 65 MSPS variant.

Replacement Considerations

The AD9226 is noted as a pin-compatible predecessor for migration purposes. Verify electrical parameter compatibility, particularly regarding sampling rates and power consumption, when substituting or upgrading from older 12-bit models within the same product family.