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AMC1302

ACTIVE

±50-mV input, precision current sensing reinforced isolated amplifier

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Data sheet

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NEW AMC0302D ACTIVE Precision ±50mV-input reinforced isolated amplifier with differential output Drop in replacement for AMC13xx

AMC1302

ACTIVE
Data sheet Order now

Product details

Device type Current sensing Output type Differential Peak-to-peak input voltage range (V) 0.05 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5000 Working isolation voltage (VIOWM) (Vrms) 1500 Transient isolation voltage (VIOTM) (VPK) 7000 CMTI (min) (kV/µs) 55 Creepage (min) (mm) 8.5 Clearance (min) (mm) 8.5 Input offset (±) (max) (V) 0.0002 Input offset drift (±) (typ) (µV/°C) 1 Rating Catalog Operating temperature range (°C) -55 to 125
Device type Current sensing Output type Differential Peak-to-peak input voltage range (V) 0.05 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5000 Working isolation voltage (VIOWM) (Vrms) 1500 Transient isolation voltage (VIOTM) (VPK) 7000 CMTI (min) (kV/µs) 55 Creepage (min) (mm) 8.5 Clearance (min) (mm) 8.5 Input offset (±) (max) (V) 0.0002 Input offset drift (±) (typ) (µV/°C) 1 Rating Catalog Operating temperature range (°C) -55 to 125
SOIC (DWV) 8 67.275 mm² (5.85 mm × 11.5 mm)
  • ±50-mV input voltage range optimized for shunt-based current measurements
  • Fixed gain: 41
  • Low DC errors:
    • Offset error: ±50 µV (maximum)
    • Offset drift: ±0.8 µV/°C (maximum)
    • Gain error: ±0.2% (maximum)
    • Gain drift: ±35 ppm/°C (maximum)
    • Nonlinearity: 0.03% (maximum)
  • 3.3-V or 5-V operation on high-side and low-side
  • Fail-safe output
  • High CMTI : 100 kV/µs (minimum)
  • Low EMI, meets CISPR-11 and CISPR-25 standards
  • Safety-related certifications:
    • 7071-VPK reinforced isolation per DIN VDE V 0884-11: 2017-01
    • 5000-VRMS isolation for 1 minute per UL1577
  • Fully specified over the extended industrial temperature range: –40°C to +125°C
  • ±50-mV input voltage range optimized for shunt-based current measurements
  • Fixed gain: 41
  • Low DC errors:
    • Offset error: ±50 µV (maximum)
    • Offset drift: ±0.8 µV/°C (maximum)
    • Gain error: ±0.2% (maximum)
    • Gain drift: ±35 ppm/°C (maximum)
    • Nonlinearity: 0.03% (maximum)
  • 3.3-V or 5-V operation on high-side and low-side
  • Fail-safe output
  • High CMTI : 100 kV/µs (minimum)
  • Low EMI, meets CISPR-11 and CISPR-25 standards
  • Safety-related certifications:
    • 7071-VPK reinforced isolation per DIN VDE V 0884-11: 2017-01
    • 5000-VRMS isolation for 1 minute per UL1577
  • Fully specified over the extended industrial temperature range: –40°C to +125°C

The AMC1302 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 reinforced galvanic isolation of up to 5 kVRMS according to VDE V 0884-11 and UL1577, and supports a working voltage of up to 1.5 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 AMC1302 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, AC-motor and servo drives over the extended industrial 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 AMC1302 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 reinforced galvanic isolation of up to 5 kVRMS according to VDE V 0884-11 and UL1577, and supports a working voltage of up to 1.5 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 AMC1302 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, AC-motor and servo drives over the extended industrial 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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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet AMC1302 Precision, ±50-mV Input, Reinforced Isolated Amplifier datasheet (Rev. D) PDF | HTML Jun 28, 2021
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB) Jul 15, 2026
White paper Addressing High-Volt Design Challenges w/ Reliable and Affordable Isolation Tech (Rev. D) PDF | HTML May 15, 2026
Technical article Design considerations of a 10kW single-phase string inverter based on TI GaN FETs PDF | HTML Mar 21, 2025
White paper Comparing Isolated Amplifiers and Isolated Modulators (Rev. B) PDF | HTML Jun 4, 2024
Application note Designing a Bootstrap Charge-Pump Power Supply for an Isolated Amplifier PDF | HTML Sep 25, 2023
Application brief Interfacing a Differential-Output (Isolated) Amp to a Single-Ended Input ADC (Rev. B) PDF | HTML Jun 2, 2023
Application brief Shunt Resistor Selection for Isolated Data Converters PDF | HTML May 4, 2023
Circuit design Isolated Current-Sensing Circuit With Front-End Gain Stage PDF | HTML Apr 24, 2023
White paper Best in Class Radiated Emissions EMI Performance with Isolated Amplifiers (Rev. A) PDF | HTML Mar 15, 2023
Certificate UL Certificate of Compliance Vol4 Sec5 E181974 (Rev. A) Jan 23, 2023
Application note Design Considerations for Current Sensing in DC EV Charging Applications PDF | HTML Dec 13, 2022
Circuit design Isolated Current-Sensing Circuit With ±50-mV Input and Single-Ended Output PDF | HTML Jul 28, 2022
Circuit design Isolated Current-Sensing Circuit With ±50-mV Input and Differential Output PDF | HTML Jun 30, 2022
Technical article Solving lifetime and temperature challenges in AC motor drives with capacitive-bas PDF | HTML Nov 1, 2019
White paper High Voltage Isolation Quality and Reliability for AMC130x Jun 21, 2016

Design & development

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

Evaluation board

AMC-AMP-50A-EVM — Evaluation module for ±50A AMCxx amplifier

The AMC-AMP-50A-EVM is an isolated current-sensing evaluation module (EVM) designed for ±50A shunt-based current sensing. This EVM allows users to sense up to ±50A peak current through an external shunt resistor while measuring the isolated output through the isolation barrier of the AMC3302. The (...)
User guide: PDF | HTML
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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.

User guide: PDF
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Simulation model

AMC1302 PSpice Model

SBAM458.ZIP (16 KB) - PSpice model
Supported products & hardware
Simulation model

AMC1302 TINA-TI Reference Design

SBAM399.TSC (69 KB) - TINA-TI reference design
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Simulation model

AMC1302 TINA-TI Spice Model

SBAM396.ZIP (7 KB) - TINA-TI Spice model
Supported products & hardware
Calculation tool

SBAR013 — Isolated Amplifier Voltage Sensing Excel Calculator

This calculator provides estimates of the errors associated with using isolation amplifier devices in a voltage sensing configuration.
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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.
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Reference design

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The series resonant dual-active-bridge (SR-DAB) DC/DC converter reference design offers advantages like soft-switching, lower circulating current and high efficiency. The design is beneficial where power density, cost, galvanic isolation, wide-gain range, and high efficiency are needed for (...)
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This reference design provides an overview on the implementation of a single-phase dual active bridge (DAB) DC/DC converter. DAB topology offers advantages like soft-switching commutations, a decreased number of devices and high efficiency. The design is beneficial where power density, cost, (...)
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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 (...)
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TIDA-010933 — 1.6kW, bidirectional micro inverter based on GaN reference design

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