AD7739BRUZ-REEL7

Overview

The AD7739BRUZ-REEL7 is a high precision, high throughput analog front end featuring an 8-channel multiplexer and a 24-bit Sigma-Delta ADC. It operates with a single 5 V analog supply and supports digital supplies of 3 V or 5 V. The device offers configurable inputs for eight single-ended or four fully differential channels with input ranges including ±625 mV, ±1.25 V, and ±2.5 V. It provides up to 15 kHz data throughput and includes on-chip system calibration. The component is housed in a 24-lead TSSOP package and functions within an industrial temperature range of –40°C to +105°C.

Feature Summary

• High-resolution 24-bit analog-to-digital conversion capability with no missing codes.
• Configurable multiplexer supporting eight single-ended or four fully differential input channels.
• Integrated per-channel system calibration to minimize offset and gain errors.
• Flexible serial interface compatible with SPI, QSPI, MICROWIRE, and DSP protocols.

Applications

• Programmable Logic Controllers (PLCs) and Distributed Control Systems (DCSs)
• Industrial process control systems
• Multiplexing applications requiring fast channel switching
• Industrial instrumentation

Procurement Notes

Verify the specific ordering suffix REEL7 confirms tape and reel packaging when sourcing components. Ensure the voltage ratings align with the system's analog and digital supply requirements before integration. Confirm that the 24-lead TSSOP footprint matches the printed circuit board layout specifications.

Selection Notes

Select this component for applications requiring high throughput and rapid channel switching between multiple analog signals. Consider the chopping mode settings to balance noise performance against conversion speed. Verify that the available input voltage ranges match the sensor output levels without requiring external signal conditioning amplifiers.

Part Context

This part belongs to the AD7739 family of high-performance analog front ends. Related devices include the AD7738, which features higher speed but pinned-out multiplexer outputs, the AD7734 with four single-ended inputs, and the AD7732 with two fully differential channels. These variants share similar architecture but differ in channel count and input configuration options.

Replacement Considerations

The AD7738 serves as a functional alternative with higher channel switching speeds. The AD7734 and AD7732 offer fewer channels but support different input configurations. Verify pin compatibility and register mapping when substituting these family members.