Product details

Device type Current sensing Peak-to-peak input voltage range (V) 0.05 Working isolation voltage (VIOWM) (Vrms) 1200 Transient isolation voltage (VIOTM) (VPK) 6000 CMTI (min) (kV/µs) 85 Input offset (±) (max) (V) 0.0001 Input offset drift (±) (typ) (V/°C) 0.00000015 Rating Automotive Operating temperature range (°C) -40 to 125
Device type Current sensing Peak-to-peak input voltage range (V) 0.05 Working isolation voltage (VIOWM) (Vrms) 1200 Transient isolation voltage (VIOTM) (VPK) 6000 CMTI (min) (kV/µs) 85 Input offset (±) (max) (V) 0.0001 Input offset drift (±) (typ) (V/°C) 0.00000015 Rating Automotive Operating temperature range (°C) -40 to 125
SO-MOD (DWE) 16 106.09 mm² 10.3 x 10.3
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • 3.3-V or 5-V single supply with integrated DC/DC converter
  • ±50-mV input voltage range optimized for current measurement using shunt resistors
  • Fixed gain: 41
  • Low DC errors:
    • Offset voltage: ±50 µV (maximum)
    • Offset drift: ±0.5 µV/°C (maximum)
    • Gain error: ±0.2% (maximum)
    • Gain error drift: ±35 ppm/°C (maximum)
    • Nonlinearity: ±0.03% (maximum)
  • High CMTI: 95 kV/µs (minimum)
  • System-level diagnostic features
  • Meets CISPR-11 and CISPR-25 EMI standards
  • Safety-related certifications:
    • 6000-VPK reinforced isolation per DIN VDE V 0884-11
    • 4250-VRMS isolation for 1 minute per UL1577
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • 3.3-V or 5-V single supply with integrated DC/DC converter
  • ±50-mV input voltage range optimized for current measurement using shunt resistors
  • Fixed gain: 41
  • Low DC errors:
    • Offset voltage: ±50 µV (maximum)
    • Offset drift: ±0.5 µV/°C (maximum)
    • Gain error: ±0.2% (maximum)
    • Gain error drift: ±35 ppm/°C (maximum)
    • Nonlinearity: ±0.03% (maximum)
  • High CMTI: 95 kV/µs (minimum)
  • System-level diagnostic features
  • Meets CISPR-11 and CISPR-25 EMI standards
  • Safety-related certifications:
    • 6000-VPK reinforced isolation per DIN VDE V 0884-11
    • 4250-VRMS isolation for 1 minute per UL1577

The AMC3302-Q1 is a precision, isolated amplifier optimized for shunt-based current measurements. The fully integrated, isolated DC/DC converter allows single-supply operation from the low-side of the device, which makes the device a unique solution for space-constrained applications. The reinforced capacitive isolation barrier is certified according to VDE V 0884-11 and UL1577 and supports a working voltage of up to 1.2 kVRMS.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-voltage side from hazardous voltages and damage.

The input of the AMC3302-Q1 is optimized for direct connection to a low-impedance shunt resistor or another low-impedance voltage source with low signal levels. The excellent DC accuracy and low temperature drift supports accurate current measurements in the temperature range from –40°C to +125°C.

The integrated DC/DC converter fault-detection and diagnostic output pin of the AMC3302-Q1 simplify system-level design and diagnostics.

The AMC3302-Q1 is a precision, isolated amplifier optimized for shunt-based current measurements. The fully integrated, isolated DC/DC converter allows single-supply operation from the low-side of the device, which makes the device a unique solution for space-constrained applications. The reinforced capacitive isolation barrier is certified according to VDE V 0884-11 and UL1577 and supports a working voltage of up to 1.2 kVRMS.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-voltage side from hazardous voltages and damage.

The input of the AMC3302-Q1 is optimized for direct connection to a low-impedance shunt resistor or another low-impedance voltage source with low signal levels. The excellent DC accuracy and low temperature drift supports accurate current measurements in the temperature range from –40°C to +125°C.

The integrated DC/DC converter fault-detection and diagnostic output pin of the AMC3302-Q1 simplify system-level design and diagnostics.

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Technical documentation

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Type Title Date
* Data sheet AMC3302-Q1 Automotive High-Precision, ±50-mV Input, Reinforced Isolated Amplifier With Integrated DC/DC Converter datasheet (Rev. A) PDF | HTML 07 Jul 2021
Certificate UL Certificate of Compliance Vol4 Sec5 E181974 (Rev. A) 23 Jan 2023
More literature Best Practices to Attenuate AMC3301 Family Radiated Emissions EMI (Rev. A) PDF | HTML 22 Sep 2022
Circuit design Isolated Current-Sensing Circuit With ±50-mV Input and Single-Ended Output PDF | HTML 28 Jul 2022
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. R) 12 Jul 2022
Circuit design Isolated Current-Sensing Circuit With ±50-mV Input and Differential Output PDF | HTML 30 Jun 2022
Circuit design Isolated Current-Sensing Circuit W/ ±250-mV Input Range & Single-Ended Output PDF | HTML 27 Jun 2022
More literature Interfacing a Differential-Output (Isolated) Amp to a Single-Ended Input ADC (Rev. A) PDF | HTML 10 Mar 2022
User guide AMC3301, AMC3302, and AMC3330 Evaluation Module (Rev. C) PDF | HTML 13 Jan 2022
Circuit design Isolated current-measurement circuit with ±250-mV input and differential output 23 Jul 2020
More literature Comparing shunt- and Hall-based current-sensing solutions in onboard chargers an (Rev. A) 19 Mar 2019
More literature Comparing isolated amplifiers and isolated modulators (Rev. A) 28 Feb 2019
More literature Comparing shunt- and hall-based isolated current-sensing solutions in HEV/EV (Rev. B) 17 Jan 2019
Technical article Get cerTIfied, not certi-FRIED! Electromagnetic compatibility testing explained (Part 4) 06 Feb 2015
Technical article Using delta-sigma modulators for isolated high-voltage measurements 09 Jan 2015
Technical article Part III: Get CerTIfied, not certi-FRIED! Electromagnetic compatibility testing explained 02 Dec 2014

Design & development

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Evaluation board

AMC3302EVM — AMC3302 evaluation module for ±50-mV-input precision reinforced isolated amplifier

The AMC3302 evaluation module (EVM) is a platform for evaluating the AMC3302, a precision isolated amplifier with an integrated DC/DC converter, which powers the high side of the amplifier. AMC3302 is a 7-kV reinforced isolated amplifier designed for use in current shunt measuring applications.

A (...)

User guide: PDF | HTML
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Simulation model

AMC3302 TINA-TI Spice Model (Rev. B)

SBAM444B.TSC (152 KB) - TINA-TI Spice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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