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AMC4311D

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2-V input reinforced isolated-power amplifier with differential output

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Data sheet

AMC4311D

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Data sheet Order now

Product details

Device type Voltage sensing Output type Differential Peak-to-peak input voltage range (V) 2 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5000 Working isolation voltage (VIOWM) (Vrms) 1414 Transient isolation voltage (VIOTM) (VPK) 7000 CMTI (min) (kV/µs) 150 Input offset (±) (max) (V) 0.008 Input offset drift (±) (typ) (µV/°C) 10 Rating Catalog Operating temperature range (°C) -40 to 125
Device type Voltage sensing Output type Differential Peak-to-peak input voltage range (V) 2 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5000 Working isolation voltage (VIOWM) (Vrms) 1414 Transient isolation voltage (VIOTM) (VPK) 7000 CMTI (min) (kV/µs) 150 Input offset (±) (max) (V) 0.008 Input offset drift (±) (typ) (µV/°C) 10 Rating Catalog Operating temperature range (°C) -40 to 125
— (—) — See data sheet
  • Single-supply operation (3.3V or 5V) with integrated DC/DC converter
  • DC/DC external load current: 8mA (maximum)
  • High input impedance: 1.3GΩ (typical)
  • Linear input voltage range: –0.1V to 2V
  • Fixed gain: 1V/V
  • Differential output
  • Low DC errors:
    • Offset error: ±0.8mV (maximum)
    • Offset drift: ±10µV/°C (maximum)
    • Gain error: ±0.25% (maximum)
    • Gain drift: ±50ppm/°C (maximum)
    • Nonlinearity: ±0.035% (maximum)
  • High CMTI: 150V/ns (minimum)
  • Low EMI: Meets CISPR-11 and CISPR-25 standards
  • System-level diagnostic features
  • Isolation ratings:Reinforced isolation
  • Safety-related certifications:
    • DIN EN IEC 60747-17 (VDE 0884-17)
    • UL1577
  • Fully specified over the industrial temperature range: –40°C to +125°C
  • Single-supply operation (3.3V or 5V) with integrated DC/DC converter
  • DC/DC external load current: 8mA (maximum)
  • High input impedance: 1.3GΩ (typical)
  • Linear input voltage range: –0.1V to 2V
  • Fixed gain: 1V/V
  • Differential output
  • Low DC errors:
    • Offset error: ±0.8mV (maximum)
    • Offset drift: ±10µV/°C (maximum)
    • Gain error: ±0.25% (maximum)
    • Gain drift: ±50ppm/°C (maximum)
    • Nonlinearity: ±0.035% (maximum)
  • High CMTI: 150V/ns (minimum)
  • Low EMI: Meets CISPR-11 and CISPR-25 standards
  • System-level diagnostic features
  • Isolation ratings:Reinforced isolation
  • Safety-related certifications:
    • DIN EN IEC 60747-17 (VDE 0884-17)
    • UL1577
  • Fully specified over the industrial temperature range: –40°C to +125°C

The AMC4311D is a precision, galvanically isolated amplifier with a fully integrated, isolated DC/DC converter that allows single-supply operation from the low-side of the device. The DC/DC converter is capable of sourcing an external current of up to 8mA to power additional device (example: AMC0300D, AMC23C12) on the high side. The high-impedance input is optimized for connection to a high-impedance resistive divider or other voltage signal source with high output resistance.

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. This barrier is certified to provide reinforced isolation up to 5kVRMS.

The AMC4311D outputs a differential signal proportional to the input voltage. The differential output is insensitive to ground shifts and enables routing the output signal over long distances.

The AMC4311D device comes in 20-pin, wide-body SOIC package, and is fully specified over the temperature range from –40°C to +125°C.

The AMC4311D is a precision, galvanically isolated amplifier with a fully integrated, isolated DC/DC converter that allows single-supply operation from the low-side of the device. The DC/DC converter is capable of sourcing an external current of up to 8mA to power additional device (example: AMC0300D, AMC23C12) on the high side. The high-impedance input is optimized for connection to a high-impedance resistive divider or other voltage signal source with high output resistance.

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. This barrier is certified to provide reinforced isolation up to 5kVRMS.

The AMC4311D outputs a differential signal proportional to the input voltage. The differential output is insensitive to ground shifts and enables routing the output signal over long distances.

The AMC4311D device comes in 20-pin, wide-body SOIC package, and is fully specified over the temperature range from –40°C to +125°C.
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* Data sheet AMC4311D Precision, 2V Input, Reinforced Isolated Amplifier with Differential Output and Integrated DC/DC Converter datasheet PDF | HTML 26 May 2026

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