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AMC3330

ACTIVE

±1-V input, precision voltage sensing reinforced isolated amplifier with integrated DC/DC

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Data sheet

AMC3330

ACTIVE
Data sheet Order now

Product details

Device type Voltage sensing Output type Differential Peak-to-peak input voltage range (V) 1 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 Creepage (min) (mm) 8 Clearance (min) (mm) 8 Input offset (±) (max) (V) 0.0002 Input offset drift (±) (typ) (µV/°C) 5 Rating Catalog Operating temperature range (°C) -40 to 125
Device type Voltage sensing Output type Differential Peak-to-peak input voltage range (V) 1 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 Creepage (min) (mm) 8 Clearance (min) (mm) 8 Input offset (±) (max) (V) 0.0002 Input offset drift (±) (typ) (µV/°C) 5 Rating Catalog Operating temperature range (°C) -40 to 125
SO-MOD (DWE) 16 106.09 mm² (10.3 mm × 10.3 mm)
  • 3.3V or 5V single supply operation with integrated DC/DC converter
  • ±1V input voltage range optimized for voltage measurements with high input impedance
  • Fixed gain: 2.0
  • Low DC errors:
    • Gain error: ±0.2% (max)
    • Gain drift: ±45ppm/°C (max)
    • Offset error: ±0.3mV (max)
    • Offset drift: ±4µV/°C (max)
    • Nonlinearity: ±0.02% (max)
  • High CMTI: 85kV/µs (min)
  • System-level diagnostic features
  • Safety-related certifications:
    • 6000VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 4250VRMS isolation for 1 minute per UL1577
  • Meets CISPR-11 and CISPR-25 EMI standards
  • 3.3V or 5V single supply operation with integrated DC/DC converter
  • ±1V input voltage range optimized for voltage measurements with high input impedance
  • Fixed gain: 2.0
  • Low DC errors:
    • Gain error: ±0.2% (max)
    • Gain drift: ±45ppm/°C (max)
    • Offset error: ±0.3mV (max)
    • Offset drift: ±4µV/°C (max)
    • Nonlinearity: ±0.02% (max)
  • High CMTI: 85kV/µs (min)
  • System-level diagnostic features
  • Safety-related certifications:
    • 6000VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 4250VRMS isolation for 1 minute per UL1577
  • Meets CISPR-11 and CISPR-25 EMI standards

The AMC3330 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 certified according to DIN EN IEC 60747-17 (VDE 0884-17) and UL1577 and separates sections of the system that operate on different common-mode voltage levels and protects low-voltage domains from damage.

The input of the AMC3330 is optimized for direct connection to high-impedance, voltage-signal sources such as a resistor-divider network to sense high-voltage signals. 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 excellent performance of the device supports accurate voltage monitoring and control. The integrated DC/DC converter fault-detection and diagnostic output pin of the AMC3330 simplify system-level design and diagnostics.

The AMC3330 is specified over the temperature range of –40°C to +125°C.

The AMC3330 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 certified according to DIN EN IEC 60747-17 (VDE 0884-17) and UL1577 and separates sections of the system that operate on different common-mode voltage levels and protects low-voltage domains from damage.

The input of the AMC3330 is optimized for direct connection to high-impedance, voltage-signal sources such as a resistor-divider network to sense high-voltage signals. 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 excellent performance of the device supports accurate voltage monitoring and control. The integrated DC/DC converter fault-detection and diagnostic output pin of the AMC3330 simplify system-level design and diagnostics.

The AMC3330 is specified over the temperature range of –40°C to +125°C.
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Technical documentation

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* Data sheet AMC3330 Precision, ±1V Input, Reinforced Isolated Amplifier With Integrated DC/DC Converter datasheet (Rev. B) PDF | HTML Aug 5, 2024
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
White paper Addressing High-Volt Design Challenges w/ Reliable and Affordable Isolation Tech (Rev. D) PDF | HTML May 15, 2026
Certificate CQC Certificate for AMC33xx Feb 26, 2025
Application note Insulation Resistance Detection Designs in GESS-BMS PDF | HTML Jan 22, 2025
White paper Comparing Isolated Amplifiers and Isolated Modulators (Rev. B) PDF | HTML Jun 4, 2024
E-book An Engineer's Guide to Isolated Signal Chain Solutions PDF | HTML May 23, 2024
Application brief Utilizing AMC3311 to Power AMC23C11 for Isolated Sensing and Fault Detection PDF | HTML Nov 9, 2023
Application brief Interfacing a Differential-Output (Isolated) Amp to a Single-Ended Input ADC (Rev. B) PDF | HTML Jun 2, 2023
Application brief Shunt Resistor Selection for Isolated Data Converters PDF | HTML May 4, 2023
White paper Best in Class Radiated Emissions EMI Performance with Isolated Amplifiers (Rev. A) PDF | HTML Mar 15, 2023
Certificate UL Certificate of Compliance Vol4 Sec5 E181974 (Rev. A) Jan 23, 2023
Application note Best Practices to Attenuate AMC3301 Family Radiated Emissions EMI (Rev. A) PDF | HTML Sep 22, 2022
Circuit design Split-Tap Connection for Line-to-Line Isolated Voltage Measurement Using AMC3330 PDF | HTML Jul 28, 2022
Application brief Achieving High-Performance Isolated Current and Voltage Sensing in Server PSUs PDF | HTML Jul 21, 2022
Certificate AMC3330EVM EU Declaration of Conformity (DoC) (Rev. B) Jun 28, 2022
Analog design Journal Isolated Voltage Sensing in AC Motor Drives PDF | HTML Jun 8, 2022
Technical article How to design high-voltage systems with higher reliability while reducing solution PDF | HTML Jun 8, 2022
Technical article Simplify your isolated current and voltage sensing designs with single-supply isol PDF | HTML Oct 26, 2020

Design & development

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Evaluation board

AMC3330EVM — AMC3330 precision reinforced isolated amplifier with integrated DC/DC converter evaluation module

The AMC3330 evaluation module (EVM) is an evaluation platform for the AMC3330 product, a precision isolated amplifier with an integrated DC/DC converter that powers the high side of the amplifier. AMC3330 is a 7-kV reinforced isolated amplifier designed for use in bipolar voltage-measuring (...)

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Simulation model

AMC3330 and AMC3330-Q1 TINA-TI Spice Model (Rev. B)

SBAM446B (152 KB) - TINA-TI Spice model
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Simulation model

AMC3330 PSpice Model (Rev. C)

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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

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Reference design

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This reference design features an analog front end for DC arc detection in solar applications based on artificial intelligence (AI). DC arcing induces a high-frequency noise onto the DC sting current. To detect the arcing frequency, data is acquired and feed into an embedded AI model, which is (...)

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SO-MOD (DWE) 16 Ultra Librarian
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