AD8418A

RECOMMENDED FOR NEW DESIGNS

Bidirectional, Zero-Drift, Current Sense Amplifier

Part Models
12
1ku List Price
Starting From $1.17

Part Details

  • Typical 0.1 μV/°C offset drift
  • Maximum ±200 μV voltage offset over full temperature range
  • 2.7 V to 5.5 V power supply operating range
  • Electromagnetic interference (EMI) filters included
  • High common-mode input voltage range
    • −2 V to +70 V, continuous operation
    • −3 V to +80 V, continuous survival
  • Minimum DC common-mode rejection ratio (CMRR): 90 dB
  • Initial gain = 20 V/V
  • Wide operating temperature range
    • AD8418AWB and AD8418AB: −40°C to +125°C
    • AD8418AWH: −40°C to +150°C
  • Bidirectional operation
  • Available in 8-lead SOIC_N, 8-lead MSOP, and FMEA tolerant
    • 10-lead MSOP pinout
  • AEC-Q100 qualified for automotive applications
AD8418A
Bidirectional, Zero-Drift, Current Sense Amplifier
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Documentation

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
AD8410A RECOMMENDED FOR NEW DESIGNS −2 V to 70 V Wide Input Voltage Range, 2.2 MHz High Bandwidth, Current-Sense Amplifier with PWM Rejection and Gain 20 V/V
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Tools & Simulations

LTspice


Models for the following parts are available in LTspice:

  • AD8418A

SPICE Model 1

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.


Evaluation Kits

eval board
EVAL-AD8418A

AD8418A Evaluation Board for Bidirectional, Zero-Drift, Current Sense Amplifier

Product Details

The AD8418ARM-EVALZ accommodates the AD8418A in the MSOP package, while the AD8418AR-EVALZ accommodates the AD8418A in an SOIC package.

The AD8418A data sheet for this device should be consulted in conjunction with this evaluation board user guide documentation.

EVAL-AD8418A
AD8418A Evaluation Board for Bidirectional, Zero-Drift, Current Sense Amplifier

Reference Designs

Figure 1. CN0548 Block Diagram
CN0548 Circuits from the lab

Isolated High Voltage, High Current, Measurement Module

Features and Benefits

  • Wide Current (+/-10 A) and Voltage (80 V) Input Range
  • Configurable gain/attenuation settings
  • Galvanically Isolated
  • Arduino form factor compatible

Part Used


Design & Integration Tools


Videos

  • lazy blur
    VIDEO · 2022-05-13 01:02
    CN0548: Isolated High Voltage, High Current, Measurement Module
CN0548
Isolated High Voltage, High Current, Measurement Module

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