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QtyUnit PriceExt.Price
1+US $26.77104US $26.77
10+US $20.07828US $200.78
30+US $17.40118US $522.04
100+US $15.39335US $1539.34
500+US $14.45636US $7228.18
1000+US $13.38552US $13385.52

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The AD8421BRZ-R7 is a precision, low-noise instrumentation amplifier developed by Analog Devices Inc. It is designed to provide high-accuracy amplification of small differential voltage signals in precision measurement and sensor interface applications. With its high input impedance, low offset voltage, and low noise characteristics, this instrumentation amplifier offers excellent performance for amplifying signals from a variety of sensors and transducers while maintaining signal integrity and minimizing errors.

Key Features:

  • Low-Noise Amplification: Features low input voltage noise and low current noise, enabling accurate amplification of small differential signals with minimal additional noise contribution.
  • High Input Impedance: Provides a high input impedance to minimize loading effects on the measured signal source and ensure accurate signal acquisition without distortion or signal degradation.
  • Wide Gain Range: Offers a wide range of gain settings, allowing for precise adjustment of amplification to match the signal level and dynamic range requirements of the application.
  • Low Offset Voltage and Drift: Incorporates precision internal circuitry to minimize offset voltage and offset voltage drift over temperature, ensuring stable and accurate amplification of small differential signals over time and temperature variations.
  • High Common-Mode Rejection Ratio (CMRR): Provides high rejection of common-mode signals, allowing for accurate amplification of differential signals even in the presence of common-mode interference or noise.
  • Flexible Power Supply Options: Operates from a wide range of power supply voltages, allowing for compatibility with various power supply configurations and voltage levels.
  • Protection Features: Includes built-in protection features such as overvoltage protection, reverse polarity protection, and thermal shutdown to safeguard the amplifier and connected components from damage under fault conditions.
  • Robust and Reliable Design: Designed for reliable operation in harsh industrial environments, with robust construction, wide operating temperature range, and high immunity to electromagnetic interference (EMI) and electromagnetic compatibility (EMC) issues.
  • Small Footprint Package: Offered in a compact and space-saving package, making it suitable for integration into compact sensor interface and data acquisition systems with limited board space.


  • Precision sensor signal conditioning
  • Strain gauge amplification
  • Thermocouple amplification
  • Pressure and force sensing
  • Temperature measurement
  • Biomedical instrumentation
  • Data acquisition systems
  • Industrial automation and control
  • Test and measurement equipment
  • Automotive and aerospace instrumentation

Functional Equivalent (FE) materials, including Fused Filament Fabrication (FFF) form, assembly, and functionally compatible substitute materials.


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