AD7738BRU-REEL7

Overview

The AD7738BRU-REEL7 is a high precision, high throughput analog front end manufactured by Analog Devices Inc. It features an 8-channel multiplexer supporting 8 single-ended or 4 fully differential inputs with configurable unipolar and bipolar ranges of ±625 mV, ±1.25 V, and ±2.5 V. The device utilizes a 24-bit sigma-delta ADC architecture with no missing codes. It operates on a single 5 V analog supply and supports digital supplies of either 3 V or 5 V. The component provides up to 15.4 kHz data throughput and includes per-channel system calibration capabilities.

Feature Summary

• Configurable input channels support both single-ended and fully differential signal connections.
• Integrated multiplexer output allows external implementation of programmable gain or signal conditioning.
• Differential reference input includes 'No-Reference' detect capability for monitoring reference integrity.
• Digital serial interface is compatible with standard microcontrollers and DSPs using Schmitt-triggered logic inputs.

Applications

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

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature range. Confirm that the REEL7 designation corresponds to the required tape and reel packaging format for automated assembly processes. Ensure compatibility with the intended manufacturing environment specifications.

Selection Notes

Select this component when high resolution multiplexing is required alongside fast channel switching speeds. Evaluate the trade-off between noise performance and data throughput based on the specific application requirements. Consider the availability of external signal conditioning components if utilizing the multiplexer output pin.

Part Context

The AD7738 belongs to the AD7738 family of high-performance analog front ends. Related parts in this series include the AD7734, which features four single-ended channels with higher voltage ranges, and the AD7732, which offers two fully differential channels. These variants share similar architectural characteristics but differ in channel count and input voltage capabilities.

Replacement Considerations

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