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AMC1301-Q1

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Automotive Precision ±250mV-Input 3µs-Delay Reinforced Isolated Amplifier

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AMC1301-Q1

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Product details

Device type Current sensing Output type Differential Peak-to-peak input voltage range (V) 0.25 Working isolation voltage (VIOWM) (Vrms) 1000 Transient isolation voltage (VIOTM) (VPK) 7000 CMTI (min) (kV/µs) 15 Input offset (±) (max) (V) 0.0002 Input offset drift (±) (typ) (µV/°C) 1 Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable
Device type Current sensing Output type Differential Peak-to-peak input voltage range (V) 0.25 Working isolation voltage (VIOWM) (Vrms) 1000 Transient isolation voltage (VIOTM) (VPK) 7000 CMTI (min) (kV/µs) 15 Input offset (±) (max) (V) 0.0002 Input offset drift (±) (typ) (µV/°C) 1 Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable
SOIC (DWV) 8 67.275 mm² (5.85 mm × 11.5 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, T A
  • Functional Safety-Capable
  • ±250-mV input voltage range optimized for current measurements using shunt resistors
  • Fixed gain: 8.2 V/V
  • Low DC errors:
    • Offset error: ±0.2 mV (max)
    • Offset drift: ±3 µV/°C (max)
    • Gain error: ±0.3% (max)
    • Gain drift: ±50 ppm/°C (max)
    • Nonlinearity: 0.03% (max)
  • 3.3-V operation on high-side and low-side
  • System-level diagnostic features
  • Safety-related certifications:
    • 7070-V PK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5000-V RMS isolation for 1 minute per UL1577
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, T A
  • Functional Safety-Capable
  • ±250-mV input voltage range optimized for current measurements using shunt resistors
  • Fixed gain: 8.2 V/V
  • Low DC errors:
    • Offset error: ±0.2 mV (max)
    • Offset drift: ±3 µV/°C (max)
    • Gain error: ±0.3% (max)
    • Gain drift: ±50 ppm/°C (max)
    • Nonlinearity: 0.03% (max)
  • 3.3-V operation on high-side and low-side
  • System-level diagnostic features
  • Safety-related certifications:
    • 7070-V PK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5000-V RMS isolation for 1 minute per UL1577

The AMC1301-Q1 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 isolation of up to 7070 V PEAK according to the DIN EN IEC 60747-17 (VDE 0884-17) and UL1577 standards, and supports a working voltage up to 1 kV RMS.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-side from voltage levels that can cause electrical damage and are potentially harmful to an operator.

The input of the AMC1301-Q1 is optimized for direct connection to shunt resistors or other low voltage-level signal sources. The excellent DC accuracy and low temperature drift supports accurate current control in onboard chargers (OBC), DC/DC converters, frequency inverters, or other high-voltage applications. The integrated common-mode overvoltage and missing high-side supply voltage detection features of the AMC1301-Q1 simplify system-level design and diagnostics.

The AMC1301-Q1 is offered in a wide-body 8-pin SOIC package, is AEC-Q100 qualified for automotive applications, and supports the temperature range from –40°C to +125°C.

The AMC1301-Q1 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 isolation of up to 7070 V PEAK according to the DIN EN IEC 60747-17 (VDE 0884-17) and UL1577 standards, and supports a working voltage up to 1 kV RMS.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-side from voltage levels that can cause electrical damage and are potentially harmful to an operator.

The input of the AMC1301-Q1 is optimized for direct connection to shunt resistors or other low voltage-level signal sources. The excellent DC accuracy and low temperature drift supports accurate current control in onboard chargers (OBC), DC/DC converters, frequency inverters, or other high-voltage applications. The integrated common-mode overvoltage and missing high-side supply voltage detection features of the AMC1301-Q1 simplify system-level design and diagnostics.

The AMC1301-Q1 is offered in a wide-body 8-pin SOIC package, is AEC-Q100 qualified for automotive applications, and supports the temperature range from –40°C to +125°C.
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Technical documentation

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* Data sheet AMC1301-Q1 Automotive, Precision, ±250-mV Input, Reinforced Isolated Amplifier datasheet (Rev. B) PDF | HTML Apr 25, 2023
Application note Isolated Converters CISPR25 Radiated Emissions PDF | HTML Oct 13, 2025
White paper Comparing Isolated Amplifiers and Isolated Modulators (Rev. B) PDF | HTML Jun 4, 2024
E-book An Engineer's Guide to Isolated Signal Chain Solutions PDF | HTML May 23, 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
Application brief Comparing shunt- and hall-based isolated current-sensing solutions in HEV/EV (Rev. C) PDF | HTML Mar 28, 2023
Certificate UL Certificate of Compliance Vol4 Sec5 E181974 (Rev. A) Jan 23, 2023
Circuit design Isolated Current-Sensing Circuit W/ ±250-mV Input Range & Single-Ended Output PDF | HTML Jun 27, 2022
Functional safety information AMC1301-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML Sep 17, 2021
Application note Isolated Voltage-Measurement Circuit With ±250-mV Input and Differential Output (Rev. A) Sep 9, 2021
Circuit design Isolated current-measurement circuit with ±250-mV input and differential output Jul 23, 2020
Certificate Optical Isolating Devices UL 1577 Certificate of Compliance Mar 7, 2018
White paper High Voltage Isolation Quality and Reliability for AMC130x Jun 21, 2016
Selection guide Understanding isolation terminology and relevance May 23, 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

AMC1301EVM — AMC1301 Evaluation Module

The AMC1301EVM is an evaluation platform for the AMC1301, a 7kV reinforced isolation amplifier designed for use in current shunt measuring applications.  The AMC1301EVM allows the user to explore all the features of the AMC1301 device.
User guide: PDF
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Simulation model

AMC1301 PSpice Model (Rev. D)

SBAM290D.ZIP (5 KB) - PSpice model
Supported products & hardware
Simulation model

AMC1301 TINA-TI Reference Design (Rev. B)

SBAM271B.TSC (121 KB) - TINA-TI reference design
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Simulation model

AMC1301 TINA-TI SPICE Model (Rev. A)

SBAM272A.ZIP (13 KB) - TINA-TI Spice model
Supported products & hardware
Simulation model

AMC13xx TINA-TI SPICE Model for Isolated Voltage-Measurement Circuit

SBAM448.TSC (43 KB) - TINA-TI Spice model
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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

TIDA-01513 — Automotive High-Voltage and Isolation Leakage Measurements Reference Design

The function of this reference design is to monitor the isolation resistance of a high-voltage bus to the chassis ground. Monitoring the isolation strength of coupling devices and components from high voltage to the chassis ground is a necessary feature in HEV’s and EV’s as battery (...)
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Reference design

TIDA-020014 — HEV/EV traction inverter power stage with 3 types of IGBT/SiC bias-supply solutions reference design

This reference design presents a traction inverter single-phase power stage with three 12-V car battery inputs, 4.2-W bias supply solutions for hybrid electric vehicle and electric vehicle (HEV/EV) systems. All bias-supply solutions accept a wide input range of 4.5 V to 42 V DC from a 12-V car (...)
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