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AMC0381R

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Precision, 1500-V input, reinforced isolated amplifier with ratiometric output

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Data sheet

AMC0381R

ACTIVE
Data sheet Order now

Product details

Device type Voltage sensing Output type Single-ended Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5000 Working isolation voltage (VIOWM) (Vrms) 1410 Transient isolation voltage (VIOTM) (VPK) 7000 CMTI (min) (kV/µs) 150 Creepage (min) (mm) 9.2 Clearance (min) (mm) 8 Input offset (±) (max) (V) 0.0015 Input offset drift (±) (typ) (µV/°C) 30 Rating Catalog Operating temperature range (°C) to
Device type Voltage sensing Output type Single-ended Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5000 Working isolation voltage (VIOWM) (Vrms) 1410 Transient isolation voltage (VIOTM) (VPK) 7000 CMTI (min) (kV/µs) 150 Creepage (min) (mm) 9.2 Clearance (min) (mm) 8 Input offset (±) (max) (V) 0.0015 Input offset drift (±) (typ) (µV/°C) 30 Rating Catalog Operating temperature range (°C) to
SSOP (DFX) 15 131.84 mm² 12.8 x 10.3
  • Integrated, high-voltage resistive divider for direct DC voltage sensing without external resistors
  • Single-ended output, ratiometric to VREFIN
    • Reference input: 2.7V to 5.5V
  • Supply voltage range:
    • High-side (VDD1): 3.0V to 5.5V
    • Low-side (VDD2): 3.0V to 5.5V
  • Low DC errors:
    • Offset error: ±1.5mV (maximum)
    • Offset drift: ±20µV/°C (maximum)
    • Attenuation error: ±0.25% (maximum)
    • Attenuation drift: ±40ppm/°C (maximum)
    • Nonlinearity: 0.025% (maximum)
  • High CMTI: 150V/ns (minimum)
  • Low EMI: Meets CISPR-11 and CISPR-25 limits
  • Available input options:
    • AMC0381R06: 600V, 10MΩ
    • AMC0381R10: 1000V, 12.5MΩ
    • AMC0381R16: 1600V, 33.5MΩ
  • Safety-related certifications:
    • 7000VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5000VRMS isolation for 1 minute per UL 1577
  • Fully specified over the extended industrial temperature range: –40°C to +125°C
  • Integrated, high-voltage resistive divider for direct DC voltage sensing without external resistors
  • Single-ended output, ratiometric to VREFIN
    • Reference input: 2.7V to 5.5V
  • Supply voltage range:
    • High-side (VDD1): 3.0V to 5.5V
    • Low-side (VDD2): 3.0V to 5.5V
  • Low DC errors:
    • Offset error: ±1.5mV (maximum)
    • Offset drift: ±20µV/°C (maximum)
    • Attenuation error: ±0.25% (maximum)
    • Attenuation drift: ±40ppm/°C (maximum)
    • Nonlinearity: 0.025% (maximum)
  • High CMTI: 150V/ns (minimum)
  • Low EMI: Meets CISPR-11 and CISPR-25 limits
  • Available input options:
    • AMC0381R06: 600V, 10MΩ
    • AMC0381R10: 1000V, 12.5MΩ
    • AMC0381R16: 1600V, 33.5MΩ
  • Safety-related certifications:
    • 7000VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5000VRMS isolation for 1 minute per UL 1577
  • Fully specified over the extended industrial temperature range: –40°C to +125°C

The AMC0381R is a precision, galvanically isolated amplifier with a high-voltage DC, high impedance input, and single-ended ratiometric output. The input is designed to connect directly to a high-voltage signal source.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels. The isolation barrier is highly resistant to magnetic interference and is certified to provide reinforced isolation up to 5kVRMS (60s).

The AMC0381R outputs a single-ended signal proportional to the input voltage. The full-scale output is set by the voltage applied to the REFIN pin. The output of the AMC0381R is designed to connect directly to the input of an ADC. Connect REFIN to the same reference voltage as the ADC to match the dynamic input voltage range of the ADC.

The AMC0381R is available in three linear input voltage ranges: 600V, 1000V, and 1600V. With an integrated precision resistive divider, the AMC0381R achieves better than 1% accuracy over the full temperature range, including lifetime drift.

The AMC0381R is available in a 15-pin, 0.65mm pitch SSOP package. The device is fully specified over the temperature range from –40°C to +125°C.

The AMC0381R is a precision, galvanically isolated amplifier with a high-voltage DC, high impedance input, and single-ended ratiometric output. The input is designed to connect directly to a high-voltage signal source.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels. The isolation barrier is highly resistant to magnetic interference and is certified to provide reinforced isolation up to 5kVRMS (60s).

The AMC0381R outputs a single-ended signal proportional to the input voltage. The full-scale output is set by the voltage applied to the REFIN pin. The output of the AMC0381R is designed to connect directly to the input of an ADC. Connect REFIN to the same reference voltage as the ADC to match the dynamic input voltage range of the ADC.

The AMC0381R is available in three linear input voltage ranges: 600V, 1000V, and 1600V. With an integrated precision resistive divider, the AMC0381R achieves better than 1% accuracy over the full temperature range, including lifetime drift.

The AMC0381R is available in a 15-pin, 0.65mm pitch SSOP package. The device is fully specified over the temperature range from –40°C to +125°C.
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* Data sheet AMC0381R Precision, High-Voltage DC Input, Reinforced Isolated Amplifier With Single-Ended Ratiometric Output datasheet PDF | HTML 14 Nov 2025
Application note Pairing Isolated Amplifiers With SAR AD Converters PDF | HTML 24 Sep 2025

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