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AMC1351

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0-V to 5-V input, precision voltage sensing reinforced isolated amplifier

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Data sheet

AMC1351

ACTIVE
Data sheet Order now

Product details

Device type Voltage sensing Output type Differential Peak-to-peak input voltage range (V) 0-5 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) 100 Creepage (min) (mm) 8.5 Clearance (min) (mm) 8.5 Input offset (±) (max) (V) 0.0015 Input offset drift (±) (typ) (µV/°C) 3 Rating Catalog Operating temperature range (°C) -40 to 125
Device type Voltage sensing Output type Differential Peak-to-peak input voltage range (V) 0-5 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) 100 Creepage (min) (mm) 8.5 Clearance (min) (mm) 8.5 Input offset (±) (max) (V) 0.0015 Input offset drift (±) (typ) (µV/°C) 3 Rating Catalog Operating temperature range (°C) -40 to 125
SOIC (DWV) 8 67.275 mm² (5.85 mm × 11.5 mm)
  • Linear input voltage range: –0.25 V to 5 V
  • High input impedance: 1.25 MΩ (typ)
  • Fixed gain: 0.4 V/V
  • Low DC errors:
    • Offset error ±1.5 mV (max)
    • Offset drift: ±15 µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain drift: ±35 ppm/°C (max)
    • Nonlinearity ±0.02% (max)
  • Operation on high-side and low-side: 3.3 V or 5 V
  • High CMTI: 100 kV/µs (min)
  • Fail-safe output
  • Safety-related certifications:
    • 7070-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
  • Linear input voltage range: –0.25 V to 5 V
  • High input impedance: 1.25 MΩ (typ)
  • Fixed gain: 0.4 V/V
  • Low DC errors:
    • Offset error ±1.5 mV (max)
    • Offset drift: ±15 µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain drift: ±35 ppm/°C (max)
    • Nonlinearity ±0.02% (max)
  • Operation on high-side and low-side: 3.3 V or 5 V
  • High CMTI: 100 kV/µs (min)
  • Fail-safe output
  • Safety-related certifications:
    • 7070-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 AMC1351 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 potentially harmful voltages and damage.

The high-impedance input of the AMC1351 is optimized for connection to high-impedance resistive dividers or other voltage signal sources with high output resistance. The excellent accuracy and low temperature drift supports accurate DC voltage sensing in DC/DC converters, frequency inverters, motor-drive, or other applications over the extended industrial temperature range from –40°C to +125°C.

The AMC1351 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 potentially harmful voltages and damage.

The high-impedance input of the AMC1351 is optimized for connection to high-impedance resistive dividers or other voltage signal sources with high output resistance. The excellent accuracy and low temperature drift supports accurate DC voltage sensing in DC/DC converters, frequency inverters, motor-drive, or other applications over the extended industrial temperature range from –40°C to +125°C.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet AMC1351 Precision, 5-V Input, Reinforced Isolated Amplifier datasheet PDF | HTML Dec 9, 2021
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB) Jul 15, 2026
Application note Pairing Isolated Amplifiers With SAR AD Converters (Rev. A) PDF | HTML Jul 10, 2026
Application note Designing a Bootstrap Charge-Pump Power Supply for an Isolated Amplifier PDF | HTML Sep 25, 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
Certificate AMC1351EVM EU RoHS Declaration of Conformity (DoC) (Rev. A) Nov 12, 2021

Design & development

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Evaluation board

AMC1351EVM — AMC1351 evaluation module for 0-V to 5-V input, precision, reinforced isolated amplifier

The AMC1351 evaluation module (EVM) is a platform for evaluating the AMC1351, which is a precision isolated amplifier with a 0-V to 5-V input range. AMC1351 has 7071-VPK reinforced isolation and is designed for use in unipolar voltage-measuring applications.

User guide: PDF | HTML
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Simulation model

AMC1351 PSpice Model

SBAM466.ZIP (8 KB) - PSpice model
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Simulation model

AMC1351 TINA-TI Reference Design

SBAM471.ZIP (14 KB) - TINA-TI reference design
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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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