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AMC3330-Q1

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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 Input range (Vp-p) ±1 Isolation working voltage VIOWM (rms) (V) 1200 Isolation transient overvoltage VIOTM (peak) (V) 6000 CMTI (Min) (kV/µs) 75 Input offset (+/-) (Max) (mV) 0.2 Input offset drift (+/-) (Typ) (uV/C) 5 Gain error (+/-) (Max) (%) 0.4 Gain error drift (+/-) (Typ) (ppm/°C) 60 Gain non-linearity (+/-) (Max) (%) 0.075 Small signal bandwidth (Typ) (kHz) 310 Rating Automotive Operating temperature range (C) -40 to 125
Device type Voltage sensing Input range (Vp-p) ±1 Isolation working voltage VIOWM (rms) (V) 1200 Isolation transient overvoltage VIOTM (peak) (V) 6000 CMTI (Min) (kV/µs) 75 Input offset (+/-) (Max) (mV) 0.2 Input offset drift (+/-) (Typ) (uV/C) 5 Gain error (+/-) (Max) (%) 0.4 Gain error drift (+/-) (Typ) (ppm/°C) 60 Gain non-linearity (+/-) (Max) (%) 0.075 Small signal bandwidth (Typ) (kHz) 310 Rating Automotive Operating temperature range (C) -40 to 125
SO-MOD (DWE) 16 106 mm² 10.3 x 10.3
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, TA
  • 3.3-V or 5-V single supply operation with integrated DC/DC converter
  • ±1-V 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: ±45 ppm/°C (max)
    • Offset error: ±0.3 mV (max)
    • Offset drift: ±4 µV/°C (max)
    • Nonlinearity: ±0.02% (max)
  • High CMTI: 85 kV/µs (min)
  • System-level diagnostic features
  • Safety-related certifications:
    • 6000-VPK reinforced isolation per DIN VDE V 0884-11 (VDE V 0884-11): 2017-01
    • 4250-VRMS 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
  • 3.3-V or 5-V single supply operation with integrated DC/DC converter
  • ±1-V 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: ±45 ppm/°C (max)
    • Offset error: ±0.3 mV (max)
    • Offset drift: ±4 µV/°C (max)
    • Nonlinearity: ±0.02% (max)
  • High CMTI: 85 kV/µs (min)
  • System-level diagnostic features
  • Safety-related certifications:
    • 6000-VPK reinforced isolation per DIN VDE V 0884-11 (VDE V 0884-11): 2017-01
    • 4250-VRMS 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 VDE V 0884-11 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 VDE V 0884-11 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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Type Title Date
* Data sheet AMC3330-Q1 Precision, ±1-V Input, Reinforced Isolated Amplifier With Integrated DC/DC Converter datasheet (Rev. A) PDF | HTML 22 Oct 2020
Certificate UL Certificate of Compliance Vol4 Sec5 E181974 (Rev. A) 23 Jan 2023
Application note Best Practices to Attenuate AMC3301 Family Radiated Emissions EMI (Rev. A) PDF | HTML 22 Sep 2022
Circuit design Split-Tap Connection for Line-to-Line Isolated Voltage Measurement Using AMC3330 PDF | HTML 28 Jul 2022
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. R) 12 Jul 2022
Circuit design Isolated Current-Sensing Circuit W/ ±250-mV Input Range & Single-Ended Output PDF | HTML 27 Jun 2022
White paper Addressing high-voltage design challenges with reliable and affordable isolation (Rev. A) PDF | HTML 06 Jun 2022
White paper 以可靠且經濟實惠的隔離技術解決高電壓設計難題 (Rev. A) PDF | HTML 06 Jun 2022
White paper 높 은 신뢰도와 합리적인 가격대의 절연 기술 개발과 관련한 고전압 설계 문 제의 해결.. (Rev. A) PDF | HTML 06 Jun 2022
Application note Interfacing a Differential-Output (Isolated) Amp to a Single-Ended Input ADC (Rev. A) PDF | HTML 10 Mar 2022
User guide AMC3301, AMC3302, and AMC3330 Evaluation Module (Rev. C) PDF | HTML 13 Jan 2022
Application note Isolated Voltage-Measurement Circuit With ±250-mV Input and Differential Output (Rev. A) 09 Sep 2021
Technical article Simplify your isolated current and voltage sensing designs with single-supply isolated amplifiers and ADCs 26 Oct 2020
Circuit design Isolated current-measurement circuit with ±250-mV input and differential output 23 Jul 2020
White paper Comparing shunt- and Hall-based current-sensing solutions in onboard chargers an (Rev. A) 19 Mar 2019
White paper Comparing isolated amplifiers and isolated modulators (Rev. A) 28 Feb 2019
Application note Comparing shunt- and hall-based isolated current-sensing solutions in HEV/EV (Rev. B) 17 Jan 2019
Technical article Get cerTIfied, not certi-FRIED! Electromagnetic compatibility testing explained (Part 4) 06 Feb 2015
Technical article Using delta-sigma modulators for isolated high-voltage measurements 09 Jan 2015
Technical article Part III: Get CerTIfied, not certi-FRIED! Electromagnetic compatibility testing explained 02 Dec 2014

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

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 (...)

User guide: PDF | HTML
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Simulation model

AMC3330 PSpice Model (Rev. B)

SBAM456B.ZIP (13 KB) - PSpice Model
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Simulation model

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

SBAM446B.TSC (152 KB) - TINA-TI Spice Model
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Calculation tool

Isolated Amplifier Voltage Sensing Excel Calculator (Rev. B)

SBAR013B.ZIP (288 KB)
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Calculation tool

Isolated Amplifier Current Sensing Excel Calculator

SBAR020.ZIP (266 KB)
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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Reference designs

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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Schematic: PDF
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