Analog Devices, Inc. (ADI)’s precision low power signal chains offer key differentiation for low power measurement applications. They prioritize overall power utilization while ensuring key information and insights are quickly and reliably transformed from their analog signal to their digital representation.

These signal chain solutions are ideal for applications that are battery-powered or where there is a sensitivity to power dissipation. Key vectors such as precision performance, size, and ease of use have all been considered, in addition to prioritizing power-saving techniques to achieve even longer operating time. They can be scaled from single channel to support multiple measurements if required. ADI also offers integrated solutions that not only take on signal conditioning and measurement, but can also be used to bias and excite external sensors where needed.

ADI’s precision low power signal chains combine precision amplifiers, voltage references, analog-to-digital converters (ADCs), and isolation products. Explore our configurable precision low power solutions for applications such as portable VSM, wireless environmental monitoring (gas, CbM, pH, and temperature), and industrial uses such as intelligent flow, where low power is a key requirement. System designers can confidently build a solution that is optimized for their most important requirements.


Single Channel Voltage, Current, and Biosignal Measurement

Optimized for high impedance sensors with a good balance of noise, DC performance, and flexible feature set.

Single channel voltage, current, and bio-signal measurement circuit

LTspice Signal Chain Simulations


Multichannel Voltage, Current, and Biosignal Measurement

Optimized for high impedance sensors with a good balance of noise and input bandwidth, as well as a flexible feature set.

Multichannel voltage, current, and bio-signal measurement circuit

Configurable, Integrated, Power & Density Optimized

Supports multiple sensing modalities in an ultra-low power, high precision, measurement platform.

Instrumentation Amplifier

Operational Amplifier

ADC

Voltage Reference

Isolation

AD8235
AD8237

AD8235 is a 40 μA micropower instrumentation amplifier in WLCSP package

AD8237 is a micropower, zero drift, true rail-to-rail instrumentation amplifier

ADA4505-4
10 µA, RRIO, zero input crossover distortion quad op amp

AD4130-8
32 μA, ultra low power, 24-bit sigma-delta ADC with integrated PGA and FIFO

ADR3425
Micro-power, high-accuracy 2.5V voltage reference

ADUM1441
Micropower quad-channel digital isolator, default high (3/1 channel directionality)

Configurable, Integrated, Power & Density Optimized Signal Chain

Application Areas

Engineer controlling industrial robots in a factory

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, as well as the industrial expertise to turn them into system-level solutions. Uses include:

  • Field Instruments
  • Temperature Controllers
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Healthcare

Innovative technology and system expertise from Analog Devices is helping shape the future of healthcare. Our domain expertise combined with our comprehensive technology portfolio enables our customers to create solutions that positively impact people’s lives.

  • Vital Signs Monitoring
  • Disease Management and Wellness
  • Life Science and Medical Instrumentation
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Sensor Interface

ADI offers high-performance signal conditioning and conversion solutions for a wide variety of sensor types including biopotential, chemical sensing and temperature sensors.

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 user interface

Filter Wizard

Select topology, enter specifications, select components, and simulate your active filter design using the Filter Wizard. Generate and save an LTspice® schematic that can be integrated with a full LTspice signal chain schematic for an end-to-end simulation.

LTspice user interface

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. Included in the download of LTspice are macromodels for a majority of Analog Devices switching regulators, amplifiers, and a library of devices for general circuit simulation. Browse our collection of SPICE simulation models here.

Instrumentation Amplifier Diamond Plot user interface

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 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 low power forum content is tailored to unique challenges of designing signal chains that require both low power and precision.

Low Power support on EngineerZone®

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