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AMC1300

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±250-mV input, precision current sensing reinforced isolated amplifier

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Data sheet

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NEW AMC0300D ACTIVE Precision ±250mV-input reinforced isolated amplifier with differential output Drop in replacement for AMC13xx

AMC1300

ACTIVE
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Product details

Device type Current sensing Output type Differential Peak-to-peak input voltage range (V) 0.25 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) 15, 75 Creepage (min) (mm) 8.5 Clearance (min) (mm) 8.5 Input offset (±) (max) (V) 0.0002, 0.002 Input offset drift (±) (typ) (µV/°C) 1, 1.3 Rating Catalog Operating temperature range (°C) -55 to 125
Device type Current sensing Output type Differential Peak-to-peak input voltage range (V) 0.25 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) 15, 75 Creepage (min) (mm) 8.5 Clearance (min) (mm) 8.5 Input offset (±) (max) (V) 0.0002, 0.002 Input offset drift (±) (typ) (µV/°C) 1, 1.3 Rating Catalog Operating temperature range (°C) -55 to 125
SOIC (DWV) 8 67.275 mm² (5.85 mm × 11.5 mm)
  • ±250-mV input voltage range optimized for current measurement using shunt resistors
  • Fixed gain: 8.2
  • Low DC errors:
    • AMC1300B:
      • Offset error: ±0.2 mV (maximum)
      • Offset drift: ±0.9 µV/°C (maximum)
      • Gain error: ±0.3% (maximum)
      • Gain drift: ±30 ppm/°C (maximum)
    • AMC1300:
      • Offset error: ±2 mV (maximum)
      • Offset drift: ±4 µV/°C (maximum)
      • Gain error: ±1% (maximum)
      • Gain drift: ±50 ppm/°C (typical)
    • Nonlinearity: 0.03% (maximum)
  • 3.3-V operation on high-side (AMC1300B)
  • High CMTI: 100 kV/µs (minimum) (AMC1300B)
  • Low EMI, meets CISPR-11 and CISPR-25 standards
  • System-level diagnostic features
  • Safety-related certifications:
    • 7071-VPK reinforced isolation per DIN VDE V 0884-11: 2017-01
    • 5000-VRMS isolation for 1 minute per UL1577
  • ±250-mV input voltage range optimized for current measurement using shunt resistors
  • Fixed gain: 8.2
  • Low DC errors:
    • AMC1300B:
      • Offset error: ±0.2 mV (maximum)
      • Offset drift: ±0.9 µV/°C (maximum)
      • Gain error: ±0.3% (maximum)
      • Gain drift: ±30 ppm/°C (maximum)
    • AMC1300:
      • Offset error: ±2 mV (maximum)
      • Offset drift: ±4 µV/°C (maximum)
      • Gain error: ±1% (maximum)
      • Gain drift: ±50 ppm/°C (typical)
    • Nonlinearity: 0.03% (maximum)
  • 3.3-V operation on high-side (AMC1300B)
  • High CMTI: 100 kV/µs (minimum) (AMC1300B)
  • Low EMI, meets CISPR-11 and CISPR-25 standards
  • System-level diagnostic features
  • Safety-related certifications:
    • 7071-VPK reinforced isolation per DIN VDE V 0884-11: 2017-01
    • 5000-VRMS isolation for 1 minute per UL1577

The AMC1300 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. Used in conjunction with isolated power supplies, this isolated amplifier separates parts of the system that operate on different common-mode voltage levels and protects lower-voltage parts from damage.

The input of the AMC1300 is optimized for direct connection to shunt resistors or other low voltage-level signal sources. The excellent performance of the device supports accurate current control resulting in system-level power savings and, especially in motor control applications, lower torque ripple. The integrated common-mode overvoltage and missing high-side supply voltage detection features of the AMC1300 simplify system-level design and diagnostics.

The AMC1300 is offered with two performance grade options: the AMC1300B is specified over the extended industrial temperature range of –55°C to +125°C, and the AMC1300 for operation at –40°C to +125°C.

The AMC1300 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. Used in conjunction with isolated power supplies, this isolated amplifier separates parts of the system that operate on different common-mode voltage levels and protects lower-voltage parts from damage.

The input of the AMC1300 is optimized for direct connection to shunt resistors or other low voltage-level signal sources. The excellent performance of the device supports accurate current control resulting in system-level power savings and, especially in motor control applications, lower torque ripple. The integrated common-mode overvoltage and missing high-side supply voltage detection features of the AMC1300 simplify system-level design and diagnostics.

The AMC1300 is offered with two performance grade options: the AMC1300B is specified over the extended industrial temperature range of –55°C to +125°C, and the AMC1300 for operation at –40°C to +125°C.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet AMC1300 Precision, ±250-mV Input, Reinforced Isolated Amplifier datasheet (Rev. D) PDF | HTML May 20, 2022
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
Certificate CQC Certificate for AMC13xx: Malaysia Feb 26, 2025
Certificate CQC Certificate for AMC13xx: Taiwan Feb 26, 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
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
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
White paper How Capacitive Isolation Solves Key Challenges in AC Motor Drives Aug 23, 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

AMC1300EVM — AMC1300 ±250-mV input, reinforced isolated amplifier with high CMTI evaluation module

The AMC1300 evaluation module (EVM) is a platform for evaluating the AMC1300, which is a 7-kV reinforced isolation amplifier designed for use in current shunt measuring applications. AMC1300EVM allows the user to explore all the features of the AMC1300.

User guide: PDF
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Simulation model

AMC1300 and AMC1300B-Q1 PSpice Model (Rev. A)

SBAM460A.ZIP (12 KB) - PSpice model
Supported products & hardware
Simulation model

AMC1300 TINA-TI Reference Design

SBAM397.TSC (1853 KB) - TINA-TI reference design
Supported products & hardware
Simulation model

AMC1300 TINA-TI SPICE Model

SBAM398.ZIP (7 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
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.
Supported products & hardware
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
Reference design

TIDA-00834 — High Accuracy Analog Front End Using 16-Bit SAR ADC with ±10V Measurement Range Reference Design

The TIDA-00834 reference design accurately measures voltage and current inputs using simultaneously sampled, 16-bit, ±10 V, bipolar input SAR ADC critical to identify power systems malfunction and power quality related failures accurately and quickly. This results in reduced power systems (...)
Supported products & hardware
Reference design

TIDA-00835 — High Accuracy ±0.5% Current and Isolated Voltage Measurement Ref Design Using 24-Bit Delta-Sigma ADC

The TIDA-00835 reference design allows for accurate voltage and current measurement using a bipolar input configuration by incorporating a four- channel, 24-bit simultaneously-sampling differential input Delta-Sigma ADC over wide dynamic range. The ADC is configured to measure ±2.5 V bipolar (...)

Supported products & hardware
Reference design

TIDA-010025 — Three-phase inverter reference design for 200-480 VAC drives with opto-emulated input gate drivers

This reference design realizes a reinforced isolated three-phase inverter subsystem using isolated IGBT gate drivers and isolated current/voltage sensors. The UCC23513 gate driver used has a 6-pin wide body package with optical LED emulated inputs which enables its use as pin-to-pin replacement to (...)
Supported products & hardware
Reference design

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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