PRECISION MEDIUM BANDWIDTH
PRECISION MEDIUM BANDWIDTH
Precision medium bandwidth signal chains cover a large range of applications that demand accuracy across signal bandwidths from DC to 500 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
- 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. They provide measurement and drive control options characterized by 16-bit to 24-bit resolution combined with DC precision and AC signal fidelity. Precise measurement of small and large amplitude signals, measurement and generation of arbitrary signals, or measurement of signals from many inputs at once are key features of these precision medium bandwidth signal chains.
ADI also provides 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 by means of small form factor multichannel converters or more highly integrated signal chain blocks (µModule® solutions).
Precision Medium Bandwidth Signal Chains
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
Resources
Tools
Noise Tool: Precision Waveform - Alias-Free Simultaneous Sampling
Simulation
Video
Easily Connect Sensors with ADI's Robust Industrial Signal Chains
Reference Designs
Single-Channel, Fully Isolated, Low Latency Data Acquisition System (DAQ)
High Performance, Alias Free Measurement Platform for Flexible Data Acquisition System
Technical Articles
How to Use Zero-Drift Amplifiers in Wider Bandwidth Applications
How High Performance Modular Instruments Enable Greater Applications and Smaller Form Factor
Sigma-Delta ADC Clocking—More Than Jitter
Fundamental Principles Behind the Sigma-Delta ADC Topology: Part 1
Use of Integrated Passives in Micromodule SIPs
AC and DC Data Acquisition Signal Chains Made Easy
CTSD Precision ADCs—Part 1: How to Improve Your Precision ADC Signal Chain Design Time
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
Power Solutions
Resources
Tools
AD7768-1 Filter Model
(Download xlsx)
AD7768 Filter Model
(Download xlsx)
Simulation
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
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.
Resources
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.
Resources
Application Notes
Modular Data Acquisition (DAQ) Footprint Using the AD7768/AD7768-4
Technical Article
CTSD Precision ADCs—Part 3: Inherent Alias Rejection Made Possible
Application Areas
Industrial Automation
Industry 4.0 promises to deliver greater levels of flexibility and productivity to manufacturing and process control. But with it comes formidable challenges. It helps to have a trusted ally who can provide advanced products and technologies, backed by knowledge of the industry, to turn them into system-level solutions. Uses include:
- Condition-Based Monitoring
- Motion Control
- Field Instruments
- Programmable Logic Controllers (PLC) and Distributed Control Systems (DCS)
- Accelerating the Path to Industry 4.0
Electronic Test and Measurement
See ADI’s solutions and resources for precision medium bandwidth signal chains for electronic test and measurement, from complete reference designs, application notes, and technical articles to the latest, cutting-edge products. Our devices cover:
- Data Acquisition
- Precision Signal Analyzers
- Signal Generators (Audio to RF)
- Precision Measurement
Instrumentation and Measurement
ADI partners with customers to instrument the future. Leveraging industry-leading capabilities, we enable technological advances, further scientific discovery, and improve quality of life. ADI delivers complete solutions from antenna-to-bits and measurement-to-information. Find solutions for:
- Automated Test Equipment
Design Tools
ADI offers a full portfolio of precision design and analysis tools that help you select the right products to help optimize and simulate your designs.
Filter Wizard
Use the Analog Filter Wizard to rapidly design low-pass, high-pass, or band-pass filters using part-specific op amp models. As you progress through the design process, you can observe the characteristics of your filter design from available views, such as magnitude, phase, step response, power, and noise. the tool allows you to check for incremental performance as you alter specifications.
ADC Driver Tool
The Precision ADC Driver Tool provides a specialized simulation environment where the engineer can quickly determine the impact of the driver and RC filter selection on the overall system performance of an ADC signal chain. The ADC Driver Tool allows the user to optimize the driver and RC filter for the end application.
Instrumentation Amplifier Diamond Plot Tool
The Diamond Plot Tool generates a configuration-specific graph of output voltage range vs. input common-mode voltage graph, also known as a diamond plot. Users can select an instrumentation amplifier and use the tool to display the input and output voltage range boundaries at different gain and supply rail operating points.
Precision Medium Bandwidth Signal Chain Support
Use ADI’s engineering community forum to find answers to common questions, access blogs, and submit your own unique questions about circuits and products to an ADI engineer. The precision medium bandwidth forum content is tailored to the unique challenges of designing measurement and drive signal chains that require precision at DC and medium bandwidth, for single and multichannel systems.
