Precision Medium Bandwidth Solutions

Precision medium bandwidth signal chains cover a large range of applications from the smallest perturbation of the electrical grid to the loudest roar of a jet engine. These are solutions that demand accuracy across signal bandwidths from DC to 100 kHz with sampling rates up to 4 MSPS such as condition-based monitoring (CbM), power quality monitoring, sensor and system data acquisition, rotation and position sensing, and analog input modules for industrial systems.

Analog Devices’ precision medium bandwidth signal chains combine precision amplifiers, voltage references, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), circuit protection, and isolation products.

Value and Benefits

Our medium bandwidth signal chain solutions provide valuable measurement and drive control options characterized by 16-bit to 24-bit resolution combined with DC precision and AC signal fidelity. They provide the key benefits of precise measurements of small and large amplitude signals, measurement and generation of arbitrary signals, or measurement of signals from many inputs at once.

We also provide options for high channel-count synchronized systems designed with consideration for time accuracy and channel-to-channel phase alignment, and options for high channel density with small form factor multichannel converters or more highly integrated signal chain blocks (µModule® solutions).

Provide accuracy with the balance of power and speed

DC precision with AC quality

Flexible Measurements including high channel count

Data Acquisition

Data Acquisition—Multichannel

The following signal chains provide highly scalable solutions for multichannel use cases with trade-offs between power, bandwidth, and noise. These chains are typified by simplified analog front-end design and precision converters with multiple analog-to-digital conversion input channels per device.

Data Acquisition—Single Channel

In this section, find signal chain options that provide highly scalable solutions for data acquisition, with trade-offs between power, bandwidth, and noise. These chains are typified by simplified analog front-end design with antialiasing protection. Single-channel signal chains can be utilized in multichannel systems where channel-to-channel isolation is required.

Power Solutions

Scalable Performance – Single Channel Data Acquisition

Alias Free Simultaneous Sampling – Multichannel Data Acquisition

High Density - Single Channel Data Acquisition

Scalable Simultaneous Sampling – Multichannel Data Acquisition

Low Latency - Single Channel Data Acquisition

Low Latency Simultaneous Sampling– Multichannel Data Acquisition

Resources

Vibration and Sound

This section includes vibration and sound signal chains for use cases with low noise and wide bandwidth, such as edge node sensing and high performance vibration and sound data acquisition channels. Some of the signal chains include devices with integrated digital filters to simplify analog filter design, reduce interface speed, and reduce power consumption in the digital host. Includes high performance DAQ signal chains with wide bandwidth and low noise.

Edge Node Vibration Sensing

Vibration Sensing Data Acquisition Module

LTspice Signal Chain Simulations

IEPE Unipolar Input

Power Solutions

Enhanced Digital Functions - Edge Node Vibration Sensing

IEPE Unipolar Input - Vibration Sensing Data Acquisition Module

Wide Bandwidth Compact Solution - Edge Node Vibration Sensing

IEPE Bipolar Input- Vibration Sensing Data Acquisition Module

3-Axis Sensing - Edge Node Vibration Sensing

Resources

Tools

AD7768-1 Filter Model
(Download xlsx)

AD7768 Filter Model
(Download xlsx)

Simulation

LTspice

Videos

Easily Connect Sensors with ADI's Robust Industrial Signal Chains

CN0549 - CbM Development Platform

ADI Sensor Interface Series - CbM and Vibration Analysis

Reference Design

24-Bit Data Acquisition System for IEPE Sensors

Application Note

Pairing A Driver Amplifier with the AD7768/AD7768-4 or the AD7768-1

Technical Articles

How to Use Zero-Drift Amplifiers in Wider Bandwidth Applications

Maximize the Performance of Your Sigma-Delta ADC Driver

Open-Source, Reusable Software Stack Enables Real-Time Processing and Algorithm Development for CbM

The Wearable for Machine Health: Condition-Based Monitoring

How High Performance Modular Instruments Enable Greater Applications and Smaller Form Factor

No Infidelity: Audio Test Platforms Benefit from New 24-Bit, Sigma-Delta ADC’s Superior SINAD

Using LTspice to Analyze Vibration Data in Condition-Based Monitoring Systems

Condition Monitoring System Design Choices and Their Impact on Signal Chain Implementation

Position—Rotation

Encoder-Based Rotation Sensing

The following signal chains deliver high precision rotation measurement capability, with options to include simultaneous sampling signal chains for phase accuracy, low latency for precision control loops, and lower resolution options for cost-sensitive applications.

AMR-Based Rotation Sensing

In this section we describe a signal chain that delivers the highest level of performance for rotation sensing and feedback applications.

Power Solutions

Noise Optimized – Encoder Based Rotation Sensing

AMR-Based Rotation Sensing

Density Optimized – Encoder Based Rotation Sensing

Cost Optimized – Encoder Based Rotation Sensing

Resources

Tools

Filter Wizard

ADC Driver Tool

Simulation

LTspice

Video

Easily Connect Sensors with ADI's Robust Industrial Signal Chains

AD7380 Evaluation Board Unboxing and Quick Setup Guide

Reference Designs

Magnetoresistive Angle and Linear Position Measurements

Application Note

On-Chip Oversampling for the AD7380 Family of SAR ADCs

Technical Articles

Fast Reacting Optical Encoder Feedback System for Miniature Motor Driven Applications

Sonar

Find signal chain options that provide highly scalable solutions for passive sonar array applications. Solutions here focus on simplified analog front-end design with inherent antialiasing and easy-to-drive data converter inputs.