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AMC3330-Q1

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Automotive ±1-V input, precision reinforced isolated amplifier with integrated DC/DC converter

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Data sheet
Automotive ±1-V input, precision reinforced isolated amplifier with integrated DC/DC converter

AMC3330-Q1

ACTIVE
Data sheet Order now

Product details

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
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
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SO-MOD (DWE) 16 106 mm² 10.3 x 10.3
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  • 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
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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) 22 Oct 2020
User guide AMC3301, AMC3302, and AMC3330 Evaluation Module (Rev. C) 13 Jan 2022
Application note Isolated Voltage-Measurement Circuit With ±250-mV Input and Differential Output (Rev. A) 09 Sep 2021
Application note Best Practices to Attenuate AMC3301 Family Radiated Emissions EMI 20 Jun 2021
White paper High-Voltage Semiconductor Solutions for Meeting Isolation Requirements 20 Jan 2021
Technical article Simplify your isolated current and voltage sensing designs with single-supply isolated amplifiers and ADCs 26 Oct 2020
Application note 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

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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

SBAM446.TSC (78 KB) - TINA-TI Spice Model
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Simulation model

AMC3330 and AMC3330-Q1 PSpice Model

SBAM456.ZIP (13 KB) - PSpice Model
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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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Calculation tool

Isolated Amplifier Voltage Sensing Excel Calculator (Rev. A)

SBAR013A.ZIP (290 KB)
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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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