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AMC3301-Q1

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Automotive ±250-mV input, precision reinforced isolated amplifier with integrated DC/DC converter

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Data sheet
Automotive ±250-mV input, precision reinforced isolated amplifier with integrated DC/DC converter

AMC3301-Q1

ACTIVE
Data sheet Order now

Product details

Input range (Vp-p) ±0.25 Isolation working voltage VIOWM (rms) (V) 1200 Isolation transient overvoltage VIOTM (peak) (V) 6000 CMTI (Min) (kV/µs) 85 Input offset (+/-) (Max) (mV) 0.15 Input offset drift (+/-) (Typ) (uV/C) 0.15 Gain error (+/-) (Max) (%) 0.2 Gain error drift (+/-) (Typ) (ppm/°C) 6 Gain non-linearity (+/-) (Max) (%) 0.04 Small signal bandwidth (Typ) (kHz) 334 Rating Automotive Operating temperature range (C) -40 to 125
Input range (Vp-p) ±0.25 Isolation working voltage VIOWM (rms) (V) 1200 Isolation transient overvoltage VIOTM (peak) (V) 6000 CMTI (Min) (kV/µs) 85 Input offset (+/-) (Max) (mV) 0.15 Input offset drift (+/-) (Typ) (uV/C) 0.15 Gain error (+/-) (Max) (%) 0.2 Gain error drift (+/-) (Typ) (ppm/°C) 6 Gain non-linearity (+/-) (Max) (%) 0.04 Small signal bandwidth (Typ) (kHz) 334 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 with integrated DC/DC converter
  • ±250-mV input voltage range optimized for current measurement using shunt resistors
  • Fixed gain: 8.2
  • Low DC errors:
    • Offset voltage: ±150 µV (max)
    • Offset drift: ±1 µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain error drift: ±40 ppm/°C (max)
    • Nonlinearity: ±0.04% (max)
  • High CMTI: 85 kV/µs (min)
  • System-level diagnostic features
  • Meets CISPR-11 and CISPR-25 EMI standards
  • Safety-related certifications:
    • 6000-VPK reinforced isolation per DIN VDE V 0884-11
    • 4250-VRMS isolation for 1 minute per UL1577
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, TA
  • 3.3-V or 5-V single supply with integrated DC/DC converter
  • ±250-mV input voltage range optimized for current measurement using shunt resistors
  • Fixed gain: 8.2
  • Low DC errors:
    • Offset voltage: ±150 µV (max)
    • Offset drift: ±1 µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain error drift: ±40 ppm/°C (max)
    • Nonlinearity: ±0.04% (max)
  • High CMTI: 85 kV/µs (min)
  • System-level diagnostic features
  • Meets CISPR-11 and CISPR-25 EMI standards
  • Safety-related certifications:
    • 6000-VPK reinforced isolation per DIN VDE V 0884-11
    • 4250-VRMS isolation for 1 minute per UL1577
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The AMC3301-Q1 is a precision, isolated amplifier, optimized for shunt-based current measurements. The fully integrated, isolated DC/DC converter allows single-supply operation from the low-side of the device which makes the device a unique solution for space-constrained applications. The reinforced capacitive isolation barrier is certified according to VDE V 0884-11 and UL1577 and supports a working voltage of up to 1.2 kVRMS.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-voltage side from hazardous voltages and damage.

The input of the AMC3301-Q1 is optimized for direct connection to a low-impedance shunt resistor or other, low-impedance voltage source with low signal levels. The excellent DC accuracy and low temperature drift supports accurate current measurements in the temperature range from –40°C to +125°C.

The integrated DC/DC converter fault-detection and diagnostic output pin of the AMC3301-Q1 simplify system-level design and diagnostics.

The AMC3301-Q1 is a precision, isolated amplifier, optimized for shunt-based current measurements. The fully integrated, isolated DC/DC converter allows single-supply operation from the low-side of the device which makes the device a unique solution for space-constrained applications. The reinforced capacitive isolation barrier is certified according to VDE V 0884-11 and UL1577 and supports a working voltage of up to 1.2 kVRMS.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-voltage side from hazardous voltages and damage.

The input of the AMC3301-Q1 is optimized for direct connection to a low-impedance shunt resistor or other, low-impedance voltage source with low signal levels. The excellent DC accuracy and low temperature drift supports accurate current measurements in the temperature range from –40°C to +125°C.

The integrated DC/DC converter fault-detection and diagnostic output pin of the AMC3301-Q1 simplify system-level design and diagnostics.

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Technical documentation

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Type Title Date
* Data sheet AMC3301-Q1 Precision, ±250-mV Input, Reinforced Isolated Amplifier With Integrated DC/DC Converter datasheet (Rev. A) 04 May 2021
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
User guide AMC3301, AMC3302, and AMC3330 Evaluation Module User's Guide (Rev. B) 03 Sep 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

AMC3301EVM — AMC3301 precision reinforced isolated amplifier with integrated DC/DC converter evaluation module

The AMC3301 evaluation module (EVM) is a platform for evaluating the AMC3301 device, a precision isolated amplifier with an integrated DC/DC converter, which powers the high side of the amplifier. AMC3301 is a 7-kV reinforced isolated amplifier designed for use in current shunt measuring (...)

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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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Isolated Amplifier Voltage Sensing Excel Calculator (Rev. A)

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