AD7738BRUZ-REEL

Overview

The AD7738BRUZ-REEL 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 5 V analog supply and supports 3 V or 5 V digital supplies. The device offers configurable input ranges of ±2.5 V, ±1.25 V, ±0.625 V, and unipolar equivalents. It achieves up to 15.4 kS/s data rate with chopping disabled and includes on-chip per-channel system calibration. The component utilizes a 3-wire serial interface compatible with SPI and DSPs, housed in a 28-lead TSSOP package.

Feature Summary

• Configurable analog front end supporting eight single-ended or four fully differential input channels.
• Integrated multiplexer output allows external programmable gain or signal conditioning.
• On-chip per-channel system calibration reduces offset and gain errors.
• Differential reference input features 'No-Reference' detect capability.

Applications

• PLCs/DCS
• Multiplexing Applications
• Process Control
• Industrial Instrumentation

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm packaging details. Ensure the component matches the required temperature range and pin configuration for the target application design.

Selection Notes

Select this component for applications requiring high-resolution multiplexing with fast channel switching times. Consider the trade-off between noise performance and throughput when configuring the chopping mode and filter word settings.

Part Context

The AD7738 belongs to the AD7738 family from Analog Devices. Related parts include the AD7734, which features four single-ended channels with higher voltage ranges, and the AD7732, which provides two fully differential channels.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.