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AMC0381D-Q1

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Automotive DC-input isolated amplifier with integrated resistive divider and differential output

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Data sheet

AMC0381D-Q1

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Data sheet Order now

Product details

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) 10 Creepage (min) (mm) 8 Clearance (min) (mm) 8.5 Input offset (±) (max) (V) 0.0015 Input offset drift (±) (typ) (µV/°C) 1 Rating Automotive Operating temperature range (°C) -40 to 125
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) 10 Creepage (min) (mm) 8 Clearance (min) (mm) 8.5 Input offset (±) (max) (V) 0.0015 Input offset drift (±) (typ) (µV/°C) 1 Rating Automotive Operating temperature range (°C) -40 to 125
SSOP (DFX) 15 131.84 mm² 12.8 x 10.3
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, TA
  • Integrated, high-voltage resistive divider for direct DC voltage sensing without external resistors
  • Better than 1% accuracy over temperature and lifetime without system-level calibration
  • Differential output
  • 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: 0.05% (maximum)
  • High CMTI: 50V/ns (minimum)
  • Low EMI: Meets CISPR-11 and CISPR-25 limits
  • Available input options:
    • AMC0381D06-Q1: 600V, 10MΩ
    • AMC0381D10-Q1: 1000V, 12.5MΩ
    • AMC0381D16-Q1: 1600V, 33MΩ
  • Safety-related certifications:
    • 7000VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5000VRMS isolation for 1 minute per UL1577
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, TA
  • Integrated, high-voltage resistive divider for direct DC voltage sensing without external resistors
  • Better than 1% accuracy over temperature and lifetime without system-level calibration
  • Differential output
  • 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: 0.05% (maximum)
  • High CMTI: 50V/ns (minimum)
  • Low EMI: Meets CISPR-11 and CISPR-25 limits
  • Available input options:
    • AMC0381D06-Q1: 600V, 10MΩ
    • AMC0381D10-Q1: 1000V, 12.5MΩ
    • AMC0381D16-Q1: 1600V, 33MΩ
  • Safety-related certifications:
    • 7000VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5000VRMS isolation for 1 minute per UL1577

The AMC0381D-Q1 is a precision, galvanically isolated amplifier with a high-voltage DC, high impedance input, and fixed-gain, differential 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 of up to 5kVRMS (60s).

The AMC0381D-Q1 outputs a differential signal that is proportional to the input voltage. The differential output is insensitive to ground shifts and enables routing the output signal over long distances.

The AMC0381D-Q1 is available in three linear input voltage ranges: 600V, 1000V, and 1600V. With an integrated precision resistive divider, the AMC0381D-Q1 achieves better than 1% accuracy over the full temperature range, including lifetime drift.

The AMC0381D-Q1 is available in a 15-pin, 0.65mm pitch SSOP package and is fully specified over the temperature range from –40°C to +125°C.

The AMC0381D-Q1 is a precision, galvanically isolated amplifier with a high-voltage DC, high impedance input, and fixed-gain, differential 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 of up to 5kVRMS (60s).

The AMC0381D-Q1 outputs a differential signal that is proportional to the input voltage. The differential output is insensitive to ground shifts and enables routing the output signal over long distances.

The AMC0381D-Q1 is available in three linear input voltage ranges: 600V, 1000V, and 1600V. With an integrated precision resistive divider, the AMC0381D-Q1 achieves better than 1% accuracy over the full temperature range, including lifetime drift.

The AMC0381D-Q1 is available in a 15-pin, 0.65mm pitch SSOP package and is fully specified over the temperature range from –40°C to +125°C.
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* Data sheet AMC0381D-Q1 Automotive, Precision, High-Voltage DC Input, Reinforced Isolated Amplifier With Fixed-Gain Differential Output datasheet PDF | HTML 22 Oct 2024
Application note Increased Accuracy and Performance with Integrated High Voltage Resistor Isolated Amplifiers and Modulators PDF | HTML 22 Oct 2024

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The AMC038x evaluation module (EVM), in conjunction with one of the AMC038x devices, demonstrates a high-precision, high-voltage sensing design. The evaluation module is capable of measuring up to 1600V input voltages with no external voltage dividor resistors needed. The design also includes a (...)

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