Product details

Device type Current sensing Peak-to-peak input voltage range (V) 0.05 Isolation rating Basic Withstand isolation voltage (VISO) (Vrms) 3000 Working isolation voltage (VIOWM) (Vrms) 1000 Transient isolation voltage (VIOTM) (VPK) 4250 CMTI (min) (kV/µs) 100 Creepage (min) (mm) 8.5 Clearance (min) (mm) 8.5 Input offset (±) (max) (V) 0.00005 Input offset drift (±) (typ) (µV/°C) 0.15 Rating Catalog Operating temperature range (°C) -40 to 125
Device type Current sensing Peak-to-peak input voltage range (V) 0.05 Isolation rating Basic Withstand isolation voltage (VISO) (Vrms) 3000 Working isolation voltage (VIOWM) (Vrms) 1000 Transient isolation voltage (VIOTM) (VPK) 4250 CMTI (min) (kV/µs) 100 Creepage (min) (mm) 8.5 Clearance (min) (mm) 8.5 Input offset (±) (max) (V) 0.00005 Input offset drift (±) (typ) (µV/°C) 0.15 Rating Catalog Operating temperature range (°C) -40 to 125
SOIC (DWV) 8 67.275 mm² 5.85 x 11.5
  • ±50-mV input voltage range optimized for current measurements using shunt resistors
  • Fixed gain: 41
  • Low DC errors:
    • Offset error: ±50 µV (max)
    • Offset drift: ±0.8 µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain drift: ±35 ppm/°C (max)
    • Nonlinearity: 0.03% (max)
  • 3.3-V or 5-V operation on high-side and low-side
  • Fail-safe output
  • High CMTI : 100 kV/µs (min)
  • Low EMI, meets CISPR-11 and CISPR-25 standards
  • Safety-related certifications:
    • 4250-VPK basic isolation per DIN VDE V 0884-11: 2017-01
    • 3000-VRMS isolation for 1 minute per UL1577
  • ±50-mV input voltage range optimized for current measurements using shunt resistors
  • Fixed gain: 41
  • Low DC errors:
    • Offset error: ±50 µV (max)
    • Offset drift: ±0.8 µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain drift: ±35 ppm/°C (max)
    • Nonlinearity: 0.03% (max)
  • 3.3-V or 5-V operation on high-side and low-side
  • Fail-safe output
  • High CMTI : 100 kV/µs (min)
  • Low EMI, meets CISPR-11 and CISPR-25 standards
  • Safety-related certifications:
    • 4250-VPK basic isolation per DIN VDE V 0884-11: 2017-01
    • 3000-VRMS isolation for 1 minute per UL1577

The AMC1202 is a precision, isolated amplifier with an output separated from the input circuitry by an isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide basic galvanic isolation of up to 3 kVRMS according to VDE V 0884-11 and UL1577, and supports a working voltage of up to 1 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 AMC1202 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 control in PFC stages, DC/DC converters, traction inverters, and OBCs over the full automotive temperature range from –40°C to +125°C.

The integrated missing shunt and missing high-side supply detection features simplify system-level design and diagnostics.

The AMC1202 is a precision, isolated amplifier with an output separated from the input circuitry by an isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide basic galvanic isolation of up to 3 kVRMS according to VDE V 0884-11 and UL1577, and supports a working voltage of up to 1 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 AMC1202 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 control in PFC stages, DC/DC converters, traction inverters, and OBCs over the full automotive temperature range from –40°C to +125°C.

The integrated missing shunt and missing high-side supply detection features simplify system-level design and diagnostics.

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Type Title Date
* Data sheet AMC1202 Precision, ±50-mV Input, Basic Isolated Amplifier datasheet PDF | HTML 17 May 2021
Circuit design Isolierte Strommessschaltung mit Frontend-Verstärkungsstufe PDF | HTML 20 Aug 2024
Circuit design 프론트 엔드게인 단계를 지원하는 절연 전류 감지 회로 PDF | HTML 20 Aug 2024
Application brief Shunt-Widerstandsauswahl für isolierte Datenwandler PDF | HTML 15 Aug 2024
Application brief 절연 데이터 컨버터를 위한 션트 레지스터 선택 PDF | HTML 15 Aug 2024
Circuit design Isolierte Strommessschaltung mit ±50 mV-Eingang und unsymmetrischem Ausgang PDF | HTML 19 Jul 2024
Circuit design ±50mV 입력 및 단일 종단 출력을 지원하는 절연 전류 감지 회로 PDF | HTML 19 Jul 2024
Application note DC 전기차 충전 애플리케이션의 전류 감지를 위한 설계 고려 사항 PDF | HTML 10 Jul 2024
Application note Designüberlegungen für die Strommessung in DC-EVLadeanwendungen PDF | HTML 08 Jul 2024
Circuit design ±50mV 입력 및 차동 출력을 지원하는 절연 전류 감지 회로 PDF | HTML 05 Jul 2024
Circuit design Isolierte Strommessschaltung mit ±50 mV-Eingang und Differenzausgang PDF | HTML 05 Jun 2024
Application note Simplify Your Current Sensing Design in Negative Output Power Supply Designs PDF | HTML 13 May 2024
Certificate VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. W) 31 Jan 2024
Application brief Shunt Resistor Selection for Isolated Data Converters PDF | HTML 04 May 2023
Circuit design Isolated Current-Sensing Circuit With Front-End Gain Stage PDF | HTML 24 Apr 2023
Application note Design Considerations for Current Sensing in DC EV Charging Applications PDF | HTML 13 Dec 2022
Certificate UL Certificate of Compliance File E181974 Vol 4 Sec 1 (Rev. A) 05 Aug 2022
Circuit design Isolated Current-Sensing Circuit With ±50-mV Input and Single-Ended Output PDF | HTML 28 Jul 2022
Circuit design Isolated Current-Sensing Circuit With ±50-mV Input and Differential Output PDF | HTML 30 Jun 2022
EVM User's guide AMC130x Evaluation Module User's Guide (Rev. C) 28 Jun 2018

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Evaluation board

AMC1302EVM — AMC1302 evaluation module for ±50-mV-input, high-precision, reinforced isolated amplifier

The AMC1302 evaluation module (EVM) is a platform for evaluating the AMC1302, which is a 7-kV reinforced isolation amplifier designed for use in current shunt measuring applications. AMC1302EVM allows the user to explore all the features of the AMC1302 device.

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Calculation tool

SBAR020 Isolated Amplifier Current Sensing Excel Calculator

This calculator provides estimates of the errors associated with using isolation amplifier devices in a current sensing configuration.
Supported products & hardware

Supported products & hardware

Products
Isolated amplifiers
AMC1202 ±50-mV input, precision current sensing basic isolated amplifier AMC1300 ±250-mV input, precision current sensing reinforced isolated amplifier AMC1300B-Q1 Automotive, ±250-mV input, precision current sensing reinforced isolated amplifier AMC1301 ±250 mV-Input Precision Reinforced Isolated Amplifier for Current Sensing AMC1301-Q1 Automotive Precision ±250mV-Input 3µs-Delay Reinforced Isolated Amplifier AMC1302 ±50-mV input, precision current sensing reinforced isolated amplifier AMC1302-Q1 Automotive, ±50-mV input, precision current sensing reinforced isolated amplifier AMC1311 2-V input, precision voltage sensing reinforced isolated amplifier AMC1311-Q1 Automotive, 2-V input, precision voltage sensing reinforced isolated amplifier AMC1350 ±5-V input, precision voltage sensing reinforced isolated amplifier AMC1351 0-V to 5-V input, precision voltage sensing reinforced isolated amplifier AMC1400 ±250-mV input, precision, current-sensing, reinforced isolated amplifier with high CMTI AMC1400-Q1 Automotive, ±250-mV input, precision, voltage-sensing, reinforced isolated amplifier with high CMTI AMC1411 2-V input, precision voltage sensing reinforced isolated amplifier with high CMTI AMC1411-Q1 Automotive, 2-V input, precision voltage sensing reinforced isolated amplifier with high CMTI AMC3301 ±250-mV input, precision current sensing reinforced isolated amplifier with integrated DC/DC AMC3301-Q1 Automotive, ±250-mV input, precision current sensing reinforced isolated amplifier with int. DC/DC AMC3302 ±50-mV input, precision current sensing reinforced isolated amplifier with integrated DC/DC AMC3302-Q1 Automotive, ±50-mV input, precision current sensing reinforced isolated amplifier with int. DC/DC AMC3330 ±1-V input, precision voltage sensing reinforced isolated amplifier with integrated DC/DC AMC3330-Q1 Automotive, ±1-V input, precision voltage sensing reinforced isolated amplifier with int. DC/DC ISO224 ±12-V input, precision voltage sensing reinforced isolated amplifier
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