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AMC3330-Q1

ACTIVE

Automotive, ±1-V input, precision voltage sensing reinforced isolated amplifier with int. DC/DC

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Data sheet

AMC3330-Q1

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 Automotive 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 Automotive Operating temperature range (°C) -40 to 125
SO-MOD (DWE) 16 106.09 mm² (10.3 mm × 10.3 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, TA
  • 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
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, TA
  • 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-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 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-Q1 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-Q1 simplify system-level design and diagnostics.

The AMC3330-Q1 is specified over the temperature range of –40°C to +125°C.

The AMC3330-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 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-Q1 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-Q1 simplify system-level design and diagnostics.

The AMC3330-Q1 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-Q1 Automotive, Precision, ±1V Input, Reinforced Isolated Amplifier With Integrated DC/DC Converter datasheet (Rev. B) PDF | HTML Sep 10, 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
Application note Design of Insulation Monitoring Device (IMD) in On-board Charger System With Active Single-Switch Architecture PDF | HTML Jan 30, 2026
Application note Isolated Converters CISPR25 Radiated Emissions PDF | HTML Oct 13, 2025
Application brief High Voltage Measurement in HEV/EV Application PDF | HTML Jun 16, 2025
Certificate CQC Certificate for AMC33xx Feb 26, 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
Application brief Comparing shunt- and hall-based isolated current-sensing solutions in HEV/EV (Rev. C) PDF | HTML Mar 28, 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
Functional safety information AMC3330-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML Apr 25, 2022
Application note Isolated Voltage-Measurement Circuit With ±250-mV Input and Differential Output (Rev. A) Sep 9, 2021
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)

SBAM456C.ZIP (14 KB) - PSpice model
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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

This calculator provides estimates of the errors associated with using isolation amplifier devices in a current sensing configuration.
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Reference design

PMP22650 — GaN-based, 6.6-kW, bidirectional, onboard charger reference design

The PMP22650 reference design is a 6.6-kW, bidirectional, onboard charger. The design employs a two-phase totem pole PFC and a full-bridge CLLLC converter with synchronous rectification. The CLLLC utilizes both frequency and phase modulation to regulate the output across the required regulation (...)
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