Instrumentation Amplifiers
Analog Devices instrumentation amplifiers (in-amps) are precision gain blocks that have a differential input and an output that may be differential or single-ended with respect to a reference terminal. These devices amplify the difference between two input signal voltages while rejecting any signals that are common to both inputs. The in-amps are widely used in many industrial, measurement, data acquisition, and medical applications where dc precision and gain accuracy must be maintained within a noisy environment, and where large common-mode signals (usually at the ac power line frequency) are present.
Product Selection Table
In-Amp Diamond Plot Tool
The Diamond Plot Tool is a web application that generates a configuration-specific Output Voltage Range vs. Input Common-Mode Voltage graph, also known as the Diamond Plot, for Analog Devices Instrumentation Amplifiers. Based on user inputs such as supply voltage, gain, and input signal range, the tool detects saturation and recommends in-amps for which the input signal is in-range and the configuration is valid. Avoid saturation, find the best in-amp for your design, and save time.
Latest Resources
Application Notes
Press Releases
Technical Articles
- A New Variation of the Classic Instrumentation Amplifier (PGIA) Offers More Design Flexibility
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DC Energy Metering Applications
Analog Dialogue
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It’s Just a Triangle, or What Does a Symbol Really Mean?
Analog Dialogue
- Driving High Precision Analog-to-Digital Converters
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Programmable Gain Instrumentation Amplifiers: Finding One that Works for You
Analog Dialogue
Product Selection Guide
Circuit Note
Technical Books
Solutions Bulletins & Brochures
Webcasts
- New Power Management Choices for Signal Chains: Keeping all the precision you designed for
- Condition Based Monitoring (CbM) using MEMS Accelerometers
- Get More Out of Your Precision Low Latency Signal Chain
- Bullseye! Transforming the Precision Narrow Bandwidth Design Journey
- Intelligent Motion Control Driving Higher Levels of Flexibility, Productivity and Sustainability in Smart Manufacturing
Videos
- ADI’s Complete Precision Signal Chains for Easy System Solutions
- ADI & Mouser Chalk Talk: CbM Impact on Smart Manufacturing
- 用于精密阻抗测量的完整系统
- [ 新製品 情報 ] LT8365 超低消費電力 昇圧 ブースト / SEPIC / 反転 DC/DCコンバータ
- LT8365高压微功耗升压/SEPIC/反相转换器
Tutorials
- MT-070: In-Amp Input RFI Protection PDF
- MT-066: In-Amp Bridge Circuit Error Budget Analysis PDF
- MT-061: Instrumentation Amplifier (In-Amp) Basics PDF
- MT-226: An Engineering Manager’s First Experience with Multisim PDF
- MT-062: Basic Two Op Amp In-Amp Configuration PDF
Frequently Asked Questions
- What is input voltage range and how is it determined?
- What is unity-gain bandwidth?
- What is the full power bandwidth of an amplifier?
- I'm applying a dc voltage to the input of my amplifier, but I'm getting an oscillating signal out. What can be causing this?
- Why is my amplifier oscillating?