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AMC3301

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±250-mV input, precision current sensing reinforced isolated amplifier with integrated DC/DC

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Data sheet

AMC3301

ACTIVE
Data sheet Order now

Product details

Device type Current sensing Peak-to-peak input voltage range (V) 0.25 Working isolation voltage (VIOWM) (Vrms) 1200 Transient isolation voltage (VIOTM) (VPK) 6000 CMTI (min) (kV/µs) 85 Input offset (±) (max) (V) 0.00015 Input offset drift (±) (typ) (V/°C) 0.00000015 Rating Catalog Operating temperature range (°C) -40 to 125
Device type Current sensing Peak-to-peak input voltage range (V) 0.25 Working isolation voltage (VIOWM) (Vrms) 1200 Transient isolation voltage (VIOTM) (VPK) 6000 CMTI (min) (kV/µs) 85 Input offset (±) (max) (V) 0.00015 Input offset drift (±) (typ) (V/°C) 0.00000015 Rating Catalog Operating temperature range (°C) -40 to 125
SO-MOD (DWE) 16 106.09 mm² 10.3 x 10.3
  • 3.3-V or 5-V single supply with integrated DC/DC converter
  • ±250-mV input voltage range optimized for current measurement using shunt resistors
  • Fixed gain: 8.2
  • Low DC errors:
    • Offset voltage: ±150 µV (max)
    • Offset drift: ±1 µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain error drift: ±40 ppm/°C (max)
    • Nonlinearity: ±0.04% (max)
  • High CMTI: 85 kV/µs (min)
  • 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
  • Fully specified over the extended industrial temperature range: –40°C to +125°C
  • 3.3-V or 5-V single supply with integrated DC/DC converter
  • ±250-mV input voltage range optimized for current measurement using shunt resistors
  • Fixed gain: 8.2
  • Low DC errors:
    • Offset voltage: ±150 µV (max)
    • Offset drift: ±1 µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain error drift: ±40 ppm/°C (max)
    • Nonlinearity: ±0.04% (max)
  • High CMTI: 85 kV/µs (min)
  • 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
  • Fully specified over the extended industrial temperature range: –40°C to +125°C

The AMC3301 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 AMC3301 is optimized for direct connection to a low-impedance shunt resistor or other, low-impedance voltage source with low signal levels. The excellent DC accuracy and low temperature drift supports accurate current measurements over the extended industrial temperature range from –40°C to +125°C.

The integrated DC/DC converter fault-detection and diagnostic output pin of the AMC3301 simplify system-level design and diagnostics.

The AMC3301 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 AMC3301 is optimized for direct connection to a low-impedance shunt resistor or other, low-impedance voltage source with low signal levels. The excellent DC accuracy and low temperature drift supports accurate current measurements over the extended industrial temperature range from –40°C to +125°C.

The integrated DC/DC converter fault-detection and diagnostic output pin of the AMC3301 simplify system-level design and diagnostics.
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Technical documentation

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* Data sheet AMC3301 Precision, ±250-mV Input, Reinforced Isolated Amplifier With Integrated DC/DC Converter datasheet (Rev. B) PDF | HTML 04 May 2021
More literature Best in Class Radiated Emissions EMI Performance with Isolated Amplifiers (Rev. A) PDF | HTML 15 Mar 2023
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
Circuit design Split-Tap Connection for Line-to-Line Isolated Voltage Measurement Using AMC3330 PDF | HTML 28 Jul 2022
More literature Achieving High-Performance Isolated Current and Voltage Sensing in Server PSUs PDF | HTML 21 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
Certificate AMC3301EVM EU Declaration of Conformity (DoC) (Rev. B) 29 Jun 2022
Circuit design Isolated Current-Sensing Circuit W/ ±250-mV Input Range & Single-Ended Output PDF | HTML 27 Jun 2022
More literature Addressing high-voltage design challenges with reliable and affordable isolation (Rev. A) PDF | HTML 06 Jun 2022
More literature 以可靠且經濟實惠的隔離技術解決高電壓設計難題 (Rev. A) PDF | HTML 06 Jun 2022
More literature 높 은 신뢰도와 합리적인 가격대의 절연 기술 개발과 관련한 고전압 설계 문 제의 해결.. (Rev. A) PDF | HTML 06 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
More literature Isolated Voltage-Measurement Circuit With ±250-mV Input and Differential Output (Rev. A) 09 Sep 2021
More literature Introduction to HVDC Architecture and Solutions for Control and Protection (Rev. B) PDF | HTML 07 Sep 2021
Technical article Simplify your isolated current and voltage sensing designs with single-supply isolated amplifiers and ADCs 26 Oct 2020
Circuit design Isolated current-measurement circuit with ±250-mV input and differential output 23 Jul 2020
More literature Comparing isolated amplifiers and isolated modulators (Rev. A) 28 Feb 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

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

AMC3301EVM — AMC3301 precision reinforced isolated amplifier with integrated DC/DC converter evaluation module

The AMC3301 evaluation module (EVM) is a platform for evaluating the AMC3301 device, a precision isolated amplifier with an integrated DC/DC converter, which powers the high side of the amplifier. AMC3301 is a 7-kV reinforced isolated amplifier designed for use in current shunt measuring (...)

User guide: PDF | HTML
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Simulation model

AMC3301 PSpice Model

SBAM474.ZIP (13 KB) - PSpice Model
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Simulation model

AMC3301 TINA-TI Reference Design (Rev. B)

SBAM440B.TSC (151 KB) - TINA-TI Reference Design
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Calculation tool

Isolated Amplifier Voltage Sensing Excel Calculator (Rev. B)

SBAR013B.ZIP (288 KB)
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Calculation tool

Isolated Amplifier Current Sensing Excel Calculator

SBAR020.ZIP (266 KB)
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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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Reference designs

TIDA-010065 — High-efficiency, low-emission, isolated DC/DC converter-based analog input module reference design

This reference design is a simplified architecture for generating an isolated power supply for isolated amplifiers for measuring isolated voltages and currents. A fully integrated DC/DC converter with reinforced isolation operating from a 5-V input with configurable 5-V or 5.4-V output (headroom (...)
Design guide: PDF
Schematic: PDF
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SO-MOD (DWE) 16 View options

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