AD7714AR-5REEL

Overview

The AD7714AR-5REEL is a five-channel, 24-bit sigma-delta analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates on a single +5 V supply and features a programmable gain front end with gains ranging from 1 to 128. The device accepts low-level signals directly from transducers and outputs serial digital words via a three-wire interface compatible with SPI, QSPI, Microwire, and DSP systems. It provides up to 24 bits of no missing codes performance with integral nonlinearity of 0.0015% FSR. The part includes an internal digital filter with programmable cutoff frequencies and supports self-calibration, system calibration, and background calibration modes.

Feature Summary

• Integrates a charge balancing ADC with a proprietary programmable gain front end based on an analog modulator.
• Features a configurable input matrix supporting three fully differential or five pseudo-differential analog inputs.
• Includes an on-chip digital filter with programmable first notch for adjusting cutoff frequency and settling time.
• Provides comprehensive calibration options including self-calibration, system calibration, and background calibration.

Applications

• Portable industrial instruments
• Portable weigh scales
• Loop-powered systems
• Pressure transducers

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature range. Confirm that the REEL designation matches the required tape-and-reel packaging format for automated assembly processes. Ensure compatibility with existing design specifications before finalizing procurement orders.

Selection Notes

Select this component when designing multi-channel signal conditioning circuits requiring high resolution and low noise. The integrated PGA reduces external component count by accepting direct sensor inputs. Verify that the operating voltage aligns with the +5 V requirement specified for the -5 suffix variant.

Part Context

This model belongs to the AD7714 family of complete analog front ends designed for low-frequency measurement applications. The series utilizes sigma-delta conversion techniques to achieve high-resolution data acquisition without requiring extensive external signal conditioning circuitry.

Replacement Considerations

Consult official documentation for verified substitute part numbers. Cross-reference pinouts and electrical specifications carefully to ensure functional equivalence in existing designs.