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AMC3311-Q1

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Automotive, 0 to 2-V input, precision reinforced isolated amplifier with integrated DC/DC converter

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Data sheet

AMC3311-Q1

ACTIVE
Data sheet Order now

Product details

Device type Voltage sensing Peak-to-peak input voltage range (V) 2 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 4250 Working isolation voltage (VIOWM) (Vrms) 1200 Transient isolation voltage (VIOTM) (VPK) 6000 CMTI (min) (kV/µs) 75 Input offset (±) (max) (V) 0.0002 Input offset drift (±) (typ) (µV/°C) 5 Rating Automotive Operating temperature range (°C) -40 to 125
Device type Voltage sensing Peak-to-peak input voltage range (V) 2 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 4250 Working isolation voltage (VIOWM) (Vrms) 1200 Transient isolation voltage (VIOTM) (VPK) 6000 CMTI (min) (kV/µs) 75 Input offset (±) (max) (V) 0.0002 Input offset drift (±) (typ) (µV/°C) 5 Rating Automotive Operating temperature range (°C) -40 to 125
SO-MOD (DWE) 16 106.09 mm² 10.3 x 10.3
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, T A
  • Single-supply operation (3.3 V or 5 V) with integrated DC/DC converter
  • Input voltage range (2 V) optimized for voltage measurements with high input impedance
  • Fixed gain: 1.0
  • Low DC errors:
    • Offset error: ±1 mV (max)
    • Offset drift: ±10 µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain drift: ±40 ppm/°C (max)
    • Nonlinearity: ±0.02% (max)
  • High CMTI: 85 kV/µs (min)
  • System-level diagnostic features
  • Meets CISPR-11 and CISPR-25 EMI standards
  • Safety-related certifications:
    • 6000-V PK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 4250-V RMS isolation for 1 minute per UL1577
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, T A
  • Single-supply operation (3.3 V or 5 V) with integrated DC/DC converter
  • Input voltage range (2 V) optimized for voltage measurements with high input impedance
  • Fixed gain: 1.0
  • Low DC errors:
    • Offset error: ±1 mV (max)
    • Offset drift: ±10 µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain drift: ±40 ppm/°C (max)
    • Nonlinearity: ±0.02% (max)
  • High CMTI: 85 kV/µs (min)
  • System-level diagnostic features
  • Meets CISPR-11 and CISPR-25 EMI standards
  • Safety-related certifications:
    • 6000-V PK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 4250-V RMS isolation for 1 minute per UL1577

The AMC3311-Q1 is a precision, isolated amplifier with a fully integrated, isolated DC/DC converter that allows single-supply operation from the low-side of the device. The reinforced capacitive isolation barrier is highly resistant to magnetic interference, is certified according to DIN EN IEC 60747-17 (VDE 0884-17) and UL1577, and supports a working voltage of up to 1200 V RMS.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-voltage side from voltage levels that can cause electrical damage and are potentially harmful to an operator.

The input of the AMC3311-Q1 is optimized for direct connection to high-impedance resistive dividers that are typically used for sensing high voltages. The integrated isolated DC/DC converter allows measurement of non-ground-referenced signals and makes the device a unique solution for noisy, space-constrained applications. The high DC accuracy and low temperature drift support accurate voltage monitoring and control.

The AMC3311-Q1 is offered in a wide-body, 16-pin SOIC package, and is specified over the temperature range of –40°C to +125°C.

The AMC3311-Q1 is a precision, isolated amplifier with a fully integrated, isolated DC/DC converter that allows single-supply operation from the low-side of the device. The reinforced capacitive isolation barrier is highly resistant to magnetic interference, is certified according to DIN EN IEC 60747-17 (VDE 0884-17) and UL1577, and supports a working voltage of up to 1200 V RMS.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-voltage side from voltage levels that can cause electrical damage and are potentially harmful to an operator.

The input of the AMC3311-Q1 is optimized for direct connection to high-impedance resistive dividers that are typically used for sensing high voltages. The integrated isolated DC/DC converter allows measurement of non-ground-referenced signals and makes the device a unique solution for noisy, space-constrained applications. The high DC accuracy and low temperature drift support accurate voltage monitoring and control.

The AMC3311-Q1 is offered in a wide-body, 16-pin SOIC package, and is specified over the temperature range of –40°C to +125°C.
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* Data sheet AMC3311-Q1 Automotive, Precision, 2-V Input, Reinforced Isolated Amplifier With Integrated DC/DC Converter datasheet (Rev. A) PDF | HTML 10 Aug 2023
Application brief Verwendung von AMC3311 zur Stromversorgung des AMC23C11 für isolierte Sensorik und Fehlererkennung PDF | HTML 21 Aug 2024
Application brief Shunt-Widerstandsauswahl für isolierte Datenwandler PDF | HTML 15 Aug 2024
Application brief 절연 데이터 컨버터를 위한 션트 레지스터 선택 PDF | HTML 15 Aug 2024
Application brief AMC3311을 활용하여 절연 감지 및 고장 감지를 위해 AMC23C11 에 전원 공급 PDF | HTML 31 May 2024
Application brief Utilizing AMC3311 to Power AMC23C11 for Isolated Sensing and Fault Detection PDF | HTML 09 Nov 2023
Application brief Shunt Resistor Selection for Isolated Data Converters PDF | HTML 04 May 2023

Design & development

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Evaluation board

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This reference design describes a 3.5kW highvoltage to low-voltage DC-DC converter with 650V Gallium nitride (GaN) high-electron mobility transistors (HEMT). Using LMG3522R030 as primary switches makes the converter work at a high switching frequency. In this design, the converter uses a smaller (...)
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