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

AMC3301-Q1

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Data sheet Order now

Product details

Parameters

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 open-in-new Find other Isolated amplifiers

Package | Pins | Size

SO-MOD (DWE) 16 106 mm² 10.3 x 10.3 open-in-new Find other Isolated amplifiers

Features

  • 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 linear input voltage range optimized for current measurement using shunt resistors
  • Fixed gain: 8.2
  • Low DC errors:
    • Input offset voltage: ±0.15 mV (max)
    • Input 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
  • Safety-related certifications:
    • 6000-VPK reinforced isolation per DIN VDE V 0884-11
    • 4250-VRMS isolation for 1 minute per UL1577
  • Meets CISPR-11 and CISPR-25 EMI standards

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Description

The AMC3301-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 AMC3301-Q1 is optimized for direct connection to shunt resistors or other low voltage-level signal sources. The integrated isolated DC/DC converter allows flexible placement of the shunt and the AMC3301-Q1, and makes the device a unique solution for space-constrained applications.

The excellent performance of the device supports accurate current monitoring and control, which is an important feature to achieve low torque ripple in motor control applications. 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 specified over the industrial temperature range of –40°C to +125°C.

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Technical documentation

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Type Title Date
* Datasheet AMC3301-Q1 Precision, ±250-mV Input, Reinforced Isolated Amplifier With Integrated DC/DC Converter datasheet Jul. 30, 2020
User guides AMC3301, AMC3302, and AMC3330 Evaluation Module User's Guide (Rev. B) Sep. 03, 2020
Application notes Isolated voltage-measurement circuit with ±250-mV input and differential output Jun. 28, 2020
Technical articles Isolation 101: How to find the right isolation solution for your application Feb. 11, 2020
Technical articles Chief Technology Officer Ahmad Bahai discusses isolation in a world of collaboration Oct. 02, 2018
Technical articles Why capacitive isolation: a vital building block for sensors in smart cities Jan. 16, 2018
Technical articles The top trends in high-voltage power, from isolation to wide-bandgap technologies Dec. 06, 2017

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description

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 (...)

Features
  • Integrated DC/DC converter for high-side power
  • Reinforced isolated amplifier: 7-kV peak, 10-kV surge
  • Fixed gain of 8.2
  • ±250-mV input range
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Design tools & simulation

SIMULATION MODELS Download
SBAM440.TSC (82 KB) - TINA-TI Reference Design
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
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SOIC (DWE) 16 View options

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