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Precision technology signal chains
Precision technology signal chains allow for easy navigation between various design trade-offs to create the optimum end-solution by application. Accelerate technology selection and implementation with Analog Devices’ complete precision technology signal chains, which bring together more than 50 years of insight and expertise. Combining the proper tools, purpose-developed knowledge bases, and customizable solutions, ADI’s precision technology signal chains enable easy adaptation. Each signal chain allows for simple tailoring to suit each unique application need.
From sensor to bits, find and tailor solutions that are optimised for demanding applications in electrification & automotive, digital health, instrumentation, smart industry, energy & sustainability, and any high precision signal chain.
In ADI’s engineering community forum, EngineerZone®, you can find answers to common questions, access blogs, and submit your own unique questions about circuits and precision products to an ADI engineer.
ADI’s Precision Signal Chains Accelerate Design Journey
Accelerate technology selection and implementation with Analog Devices’ precision technology signal chains. Navigate between various design trade-offs to find the optimum end-solution by application care about.
Software
ADC Driver Tool
Use the Precision ADC Driver Tool to simulate the performance of precision ADC and driver combinations.
LTspice
LTspice is a high performance SPICE simulation software, schematic capture, and waveform viewer with enhancements and models for easing the simulation of analog circuits.
Precision Studio
This suite of web tools helps you design signal conditioning circuits faster. Included tools: Analog Filter Wizard, Precision ADC Driver Tool, Photodiode Wizard, In-Amp Diamond Plot, Direct Digital Synthesis Simulator, and Virtual Eval ADC simulator.
Precision Low Power
Analog Devices’ precision low power signal chains are designed and optimised for small-size battery-powered or power sensitive applications. ADI’s solutions combine precision amplifiers, voltage references, analog-to-digital converters (ADCs), isolation, and microcontroller (MCU) components for a complete sensor to system solution. Explore these signal chains across key vectors: sensor type, sample rate, single-ended or differential sensor input signals, and single-channel or multichannel capability. Applications such as portable vital signs monitoring (VSM), wireless environmental monitoring (temperature, CO2 gas, CO gas, pH), condition-based monitoring (CbM), and industrial uses like intelligent flow meters and vibration sensing are covered, including sensor biasing.
Design Faster with ADI's Precision Low Power Signal Chains
Software
Filter Wizard
Select topology, enter specifications, select components, and simulate your active filter design using the Filter Wizard.
LTspice
LTspice is a high performance SPICE simulation software, schematic capture, and waveform viewer with enhancements and models for easing the simulation of analog circuits.
Instrumentation Amplifier Diamond Plot Tool
Use the instrumentation amplifier diamond plot tool to verify that the chosen in-amp will work for the required input range.
Precision Low Power Signal Chains
Precision Narrow Bandwidth
Analog Devices offers precision narrow bandwidth signal chains that focus on optimising the performance of systems where the signals of interest are in the range of DC to approximately 10 kHz. Precision narrow bandwidth signal chains prioritize low frequency specifications, delivering best-in-class accuracy, stability, and resolution. They enable robust, repeatable, high quality measurement and drive solutions to tackle the most demanding precision challenges.
ADI has solutions tailored to your exact specifications, ranging from stability and latency to signal chain density and power consumption. Our precision narrow bandwidth signal chains can be used for applications such as source measurement units (SMU), digital multimeters (DMM), chromatography, weigh scales, seismic survey equipment, battery test and inspection, energy metering, semiconductor manufacturing, and more.
Applications
- Industrial Automation
- Field Instruments
- Programmable Logic Controllers
- (PLC) and Distributed Control Systems (DCS)
- Accelerating the Path to Industry 4.0
- Electronic Test & Measurement
- Data Acquisition Modules
- Source Measurement Units (SMU)
- Digital Multimeters (DMM)
- Instrumentation & Measurement
- Automated Test Equipment
- Battery Formation and Test
- Chemical Analysis and Analytical Instruments
- Weigh Scales
Precision Narrow Bandwidth Signal Chain Solutions
Software
Power Management Tools
Analog Devices offers complete power management tools to make designing power system and circuits easier with good quality.
LTspice
LTspice is a high performance SPICE simulation software, schematic capture, and waveform viewer with enhancements and models for easing the simulation of analog circuits.
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.
Applications
- Industrial Automation
- 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 & Measurement
- Data Acquisition
- Precision Signal Analyzers
- Signal Generators (Audio to RF)
- Precision Measurement
- Instrumentation & Measurement
- Automated Test Equipment
Precision Medium Bandwidth Signal Chain
Software
Filter Wizard
Use the Analog Filter Wizard to rapidly design low-pass, high-pass, or band-pass filters using part-specific op amp models.
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.
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.
Edge Node Vibration Sensing
Enhanced Digital Functions
Wide Bandwidth Compact Solution
3-Axis Sensing
Vibration Sensing Data Acquisition Module
IEPE Unipolar Input
| Input Protection Switch | Constant Current Source | Offset Adjustment DAC | Gain | ADC Driver | ADC | Ref Buffer | Reference | Digital Isolator |
|---|---|---|---|---|---|---|---|---|
| ADG5421F | LT3092 | LTC2606 | AD8605 | ADA4945-1 | AD7768-1 | ADA4807-1 | ADR4540 | N/A |
IEPE Bipolar Input
Encoder-Based Rotation Sensing
Noise optimised
Density optimised
Cost optimised
Encoder-Based Rotation Sensing
Noise optimised
Encoder-Based Rotation Sensing
Scalable Performance
High Dynamic Range
Sensor Distributed
Precision Wide Bandwidth
The precision wide bandwidth signal chains bring the insight and flexibility needed to optimise application specific parameters for measurement and drive solutions. While ensuring the necessary accuracy, this fast sampling rate signal chain is ideal for considerations between AC and DC precision and has the required wide bandwidth for measurement or signal generation (DC to 1 MHz). With precision wide bandwidth, easily create a solution targeting your most important specifications, whether for measurement noise (SNR), DC linearity, settling time performance, closed-loop or measurement latency, or total harmonic distortion (THD).
Analog Devices’ precision wide bandwidth signal chains combine precision amplifiers, voltage references, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), circuit protection, and isolation products, allowing system designers to build with confidence a solution that optimises for their precision and speed.
Applications
- Life Sciences and Medical Instrumentation
- In Vitro Diagnostics
- Spectrometry
- Electronic Test & Measurement
- Data Acquisition Modules
- Source Measurement Unit (SMU)
- Digital Multimeter (DMM)
- Chemical Analysis and Analytical Instruments
- FT-IR Spectroscopy
- Raman Spectroscopy
- UV-VIS Single Beam Spectroscopy
Design Faster with ADI’s Precision Wide Bandwidth Signal Chains
Software
Photodiode Wizard
Use the Photodiode Wizard to select components, simulate, and fine tune your circuit design.
Filter Wizard
Select topology, enter specifications, select components, and simulate your active filter design using the Filter Wizard.
Precision DAC Error Budget Calculator
Use the Precision DAC Error Budget Calculator to optimise your signal drive system design.
Density optimised
| Protection | Gain | ADC Driver | ADC | Voltage Reference | Isolation |
|---|---|---|---|---|
| ADG5421F | LTC6373 | ADAQ23875 ADAQ23876 ADAQ23878 | LTC6655 | ADN4654 |
Power optimised
| Protection | Gain | ADC Driver | ADC | Voltage Reference | Isolation |
|---|---|---|---|---|---|
| ADG5421F | LTC6373 | ADA4945-1 | LTC2387-18 LTC2387-16 | LTC6655 | ADN4654 |
Noise and Bandwidth optimised
| Protection | Gain | ADC Driver | ADC | Voltage Reference | Isolation |
|---|---|---|---|---|---|
| ADG5421F | LTC6373 | ADA4899-1 | LTC2387-18 LTC2387-16 | LTC6655 | ADN4654 ADN4655 ADN4656 |
Optimised for noise
| TIA | ADC Driver | ADC | Voltage Reference |
|---|---|---|---|
| LTC6268 | ADA4899-1 | LTC2387-18 LTC2387-16 | LTC6655 |
Power optimised
| TIA | ADC Driver | ADC | Voltage Reference |
|---|---|---|---|
| LTC6268 | ADA4945-1 | LTC2387-18 LTC2387-16 | LTC6655 |
Speed and density optimised
| TIA | ADC Driver | ADC | Voltage Reference |
|---|
| ADA4355 |
Precision Current Sensing
The precision current sensing signal chains offer a wide range of accurate, robust, and industry-proven current measurement solutions that can be adopted in all environments to measure current in low, medium, or high power applications. They have been developed by combining extensive application-level knowledge with best-in-class current sensing technologies, enabling precise and robust measurement of DC and AC. These cover the most common industrial sensors such as shunt, Hall effect, and current transformers to address your specific measurement needs.
Learn how ADI’s precision current sensing signal chains can be applied to solve your most difficult current measurement challenges in applications as diverse as motor control inverters, DC-to-DC converters, valve/solenoid control, protective relays, AC-to-DC metering, and PV inverters.
Design Precision Robotics with Ease Using ADI's Signal Chains
Resources
Tools
Simulation
Video
Application Notes
- Differential Overvoltage Protection Circuits for Current Sense Amplifiers
- Common-Mode Transients in Current Sense Applications
- Common-Mode Step Response of Current Sense Amplifiers
Technical Articles
- High-Side Current Sensing: Difference Amplifier vs. Current-Sense Amplifier
- Difference and Current Sense Amplifiers
- Differential Overvoltage Protection Circuits for Current Sense Amplifiers
- Next-Generation SAR ADC Addresses Pain Points of Precision Data Acquisition Signal Chain Design
Webcasts
Evaluation Boards
1. Generic Signal Chains - Shunt: Common-Mode Voltage Level Up to: • 18 V • 70 V • ±600 V • ±1060
Shunt: Common-Mode Voltage Level Up to 18 V
Optimized for low offset, high bandwidth and speed, precision measurement of small currents.
Shunt: Common-Mode Voltage Level Up to 70 V
Optimized for bidirectional current measurements in the presence of PWM-type input common-mode voltages.
Shunt: Common-Mode Voltage Level Up to ±600 V
Optimized solution for highly robust, multichannel current measurement applications.
Shunt: Common-Mode Voltage Level Up to ±1060 V
Optimized for measurement accuracy, with an isolation barrier for increased robustness and safety, offering a good balance between power consumption, size, and design complexity.
| ADC |
|---|
| ADuM7703 |
2. Generic Signal Chains – Contactless Sensing: Current Transformer
Contactless Sensing: Current Transformer
Optimized for isolated and robust precision current measurement with a CT sensor.
| ADC | Ref |
|---|---|
| AD7606C-16 | ADR4525 |
3. Generic Signal Chains – Contactless Sensing: Hall 5 V Output
Resources
Tools
Simulation
Webcasts
Evaluation Boards
Application Notes
- Isolated Motor Control Feedback Using ADSP Processors and the AD7403
- Common-Mode Transients in Current Sense Applications
- Common-Mode Step Response of Current Sense Amplifiers
Technical Articles
- Sigma Delta Conversion Used for Motor Control
- Keep Calm and Robot On
- High-Side Current Sensing: Difference Amplifier vs. Current-Sense Amplifier
- Difference and Current Sense Amplifiers
- Differential Overvoltage Protection Circuits for Current Sense Amplifiers
Video
1. Motor Control Inverter – Shunt: Highest Measurement Precision
Contactless Sensing: Current Transformer
Optimized for isolated and robust precision current measurement with a CT sensor.
| ADC |
|---|
| ADuM7701 |
2. Motor Control Inverter – Shunt: Medium Precision and Performance
Contactless Sensing: Current Transformer
Optimized for isolated and robust precision current measurement with a CT sensor.
3. Motor Control Inverter – High Power Current Transformer Sensor
Resources
Tools
Simulation
Video
Design Notes
Application Notes
- Translating System Level Protection and Measurement Requirements to ADC Specifications
- Coherent Sampling for Power Quality Measurements Using the AD7779 24-Bit Simultaneous Sampling Sigma-Delta ADC
- Migrating to the AD7606B from the AD7606
- An EMC Robust PCB Design Based on the AD7606B ADC for Power Automated Applications
Webcasts
1. Grid Monitoring – Precision CT Measurement
Precision CT Measurement
Optimized for isolated and robust precision current measurement with CT (current transformer)-based current measurement and PT (potential transformer)-based measurement.
2. Grid Monitoring - Precision DC Measurement
Precision High Voltage
Analog Devices’ precision high voltage signal chains combine precision high voltage amplifiers, high voltage digital-to-analog converters (DACs), difference amplifiers, and matched resistor networks. Drive signal chains are offered at several voltage, current drive, density, and slew rates, allowing system designers to find a solution optimized for their needs. Each signal chain provides example solutions to drive high voltage signals up to 216 V or drive currents up to 2 A.
Find tailored drive and measure solutions suitable for high voltage ATE, automotive test, and source measurement units (SMUs). Drive solutions are tailored for piezoelectric positioning and actuation, and MEMS mirror control applications by varying density, drive voltage, drive current, and protection features.
Design Tools
Filter Wizard
Select topology, enter specifications, select components, and simulate your active filter design using the Filter Wizard.
DiffAmpCalc Tool
Download the free ADI DiffAmpCalc™ tool for designing differential amplifier circuits and reduce design time from hours to minutes.
Precision DAC Error Budget Calculator
Use the Precision DAC Error Budget Calculator to optimize your signal drive system design.
Resources
Tutorials
Videos
Application Notes
High Voltage/High Current Drive Signal chain options for high voltage drive or high current drive.
Signal chain options for high voltage drive or high current drive.
Resources
High Differential Voltage Measurement
Buffered and non-buffered signal chain options for measuring differential voltages up to ±110 V are shown below.
High Accuracy
| High Voltage Amplifier | Difference Amplifier | PMU |
|---|---|---|
| ADHV4702-1 LTC6090/LTC6090-5 LTC6091 | LT1997-2 | AD5522 |
Performance – Size Optimized
Resources
High Common-Mode Current Measurement
When measuring nA load currents, a high input impedance is required. Two high accuracy buffered options are provided with ADHV4702-1 as the input stage. One uses a difference amplifier while the other creates a difference amplifier using the LT5400 matched resistor network.
Highest Initial Accuracy
| High Voltage Amplifier | Difference Amplifier | PMU |
|---|---|---|
| ADHV4702-1 | LT6375A | AD7606C-18 |
Performance – Size Optimized
| High Voltage Amplifier | Difference Amplifier | PMU |
|---|---|---|
N/A | LT6375A AD8479 | AD7606C-18 |
Highest Accuracy after Calibration
| High Voltage Amplifier | Difference Amplifier | PMU |
|---|---|---|
| ADHV4702-1 | LT5400 | AD5522 |
Isolated Gate Drive & Sense
The isolated gate drive & sense signal chains combine robust switch control and scalable multichannel monitoring into a flexible solution covering a range of AC/DC and DC/AC applications. Isolated gate drive & sense combines ADI’s isolated gate drivers, isolated power solutions, and precision converter technology to deliver a signal chain that provides output drive and protection for power switches including IGBTs and fast switching silicon carbide (SiC) devices, while also offering high accuracy monitoring of system voltages, currents and temperatures using combinations of digital isolation, amplifiers, and high precision ADCs.
Solutions target applications such as automotive traction inverter/OBC, high power test, power inverters, power supplies, energy storage, and robotics.
Applications
- Vehicle Electrification
- Battery Management Systems (BMS)
- Inverter & E-Motor Systems
- DC-DC Conversion
- On-Board Charging
- Energy
- Energy Storage and Power Conversion
- Industrial Automation
- Motion Control
- Industrial Robotics