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AMC1100

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±250-mV input, precision current sensing low-cost basic isolated amplifier

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Data sheet

AMC1100

ACTIVE
Data sheet Order now

Product details

Device type Current sensing Output type Differential Peak-to-peak input voltage range (V) 0.25 Isolation rating Basic Withstand isolation voltage (VISO) (Vrms) 3000 Working isolation voltage (VIOWM) (Vrms) 800 Transient isolation voltage (VIOTM) (VPK) 4250 CMTI (min) (kV/µs) 2.5 Creepage (min) (mm) 8.5 Clearance (min) (mm) 8.5 Input offset (±) (max) (V) 0.0015 Input offset drift (±) (typ) (µV/°C) 1.5 Rating Catalog Operating temperature range (°C) -40 to 105
Device type Current sensing Output type Differential Peak-to-peak input voltage range (V) 0.25 Isolation rating Basic Withstand isolation voltage (VISO) (Vrms) 3000 Working isolation voltage (VIOWM) (Vrms) 800 Transient isolation voltage (VIOTM) (VPK) 4250 CMTI (min) (kV/µs) 2.5 Creepage (min) (mm) 8.5 Clearance (min) (mm) 8.5 Input offset (±) (max) (V) 0.0015 Input offset drift (±) (typ) (µV/°C) 1.5 Rating Catalog Operating temperature range (°C) -40 to 105
SOP (DUB) 8 98.8 mm² (9.5 mm × 10.4 mm) SOIC (DWV) 8 67.275 mm² (5.85 mm × 11.5 mm)
  • ±250-mV input voltage range optimized for shunt resistors
  • Very low nonlinearity: 0.075% max at 5 V
  • Low offset error: 1.5 mV max
  • Low noise: 3.1 mVRMS typ
  • Low high-side supply current:
    8 mA max at 5 V
  • Input bandwidth: 60 kHz min
  • Fixed gain: 8 (0.5% Accuracy)
  • High common-mode rejection ratio: 108 dB
  • Low-side operation: 3.3 V
  • Safety-related certifications:
    • 4250-VPK basic isolation per
      DIN VDE V 0884-11: 2017-01
    • 3005-VRMS isolation for 1 minute per UL1577
    • CAN/CSA no. 5A-component acceptance service notice and DIN EN 61010-1 standard
    • Working voltage: 1200 VPEAK
    • Transient immunity: 2.5 kV/µs min
  • Fully specified over the extended industrial temperature range
  • ±250-mV input voltage range optimized for shunt resistors
  • Very low nonlinearity: 0.075% max at 5 V
  • Low offset error: 1.5 mV max
  • Low noise: 3.1 mVRMS typ
  • Low high-side supply current:
    8 mA max at 5 V
  • Input bandwidth: 60 kHz min
  • Fixed gain: 8 (0.5% Accuracy)
  • High common-mode rejection ratio: 108 dB
  • Low-side operation: 3.3 V
  • Safety-related certifications:
    • 4250-VPK basic isolation per
      DIN VDE V 0884-11: 2017-01
    • 3005-VRMS isolation for 1 minute per UL1577
    • CAN/CSA no. 5A-component acceptance service notice and DIN EN 61010-1 standard
    • Working voltage: 1200 VPEAK
    • Transient immunity: 2.5 kV/µs min
  • Fully specified over the extended industrial temperature range

The AMC1100 is a precision isolation amplifier with an output separated from the input circuitry by a silicon dioxide (SiO2) barrier that is highly resistant to magnetic interference. This barrier is certified to provide galvanic isolation of up to 4250 VPEAK, according to DIN VDE V 0884-11: 2017-01 and UL1577. Used in conjunction with isolated power supplies, this device prevents noise currents on a high common-mode voltage line from entering the local ground and interfering with or damaging sensitive circuitry.

The AMC1100 input is optimized for direct connection to shunt resistors or other low voltage level signal sources. The excellent performance of the device enables accurate current and voltage measurement in energy-metering applications. The output signal common-mode voltage is automatically adjusted to either the 3-V or 5-V low-side supply.

The AMC1100 is fully specified over the extended industrial temperature range of –40°C to +105°C and is available in the SMD-type, wide-body SOIC-8 (DWV) and gullwing-8 (DUB) packages.

The AMC1100 is a precision isolation amplifier with an output separated from the input circuitry by a silicon dioxide (SiO2) barrier that is highly resistant to magnetic interference. This barrier is certified to provide galvanic isolation of up to 4250 VPEAK, according to DIN VDE V 0884-11: 2017-01 and UL1577. Used in conjunction with isolated power supplies, this device prevents noise currents on a high common-mode voltage line from entering the local ground and interfering with or damaging sensitive circuitry.

The AMC1100 input is optimized for direct connection to shunt resistors or other low voltage level signal sources. The excellent performance of the device enables accurate current and voltage measurement in energy-metering applications. The output signal common-mode voltage is automatically adjusted to either the 3-V or 5-V low-side supply.

The AMC1100 is fully specified over the extended industrial temperature range of –40°C to +105°C and is available in the SMD-type, wide-body SOIC-8 (DWV) and gullwing-8 (DUB) packages.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet AMC1100 Fully-Differential Isolation Amplifier datasheet (Rev. B) PDF | HTML Dec 3, 2019
Certificate VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. AA) Jun 11, 2026
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 Interfacing a Differential-Output (Isolated) Amp to a Single-Ended Input ADC (Rev. B) PDF | HTML Jun 2, 2023
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White paper Best in Class Radiated Emissions EMI Performance with Isolated Amplifiers (Rev. A) PDF | HTML Mar 15, 2023
Certificate UL Certificate of Compliance File E181974 Vol 4 Sec 1 (Rev. A) Aug 5, 2022
E-book An Engineer's Guide to Current Sensing (Rev. B) Apr 12, 2022
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Certificate CSA Certification (Certificate: 220991) (Rev. A) Oct 23, 2015
Application note Designing Low Cost Flyback Power Supply Using Boost Converter (TPS61165) for HF Apr 17, 2014
Application note Replacement of Input Main Sensing Transformer in Inverters with Isolate Amplifie Aug 21, 2012

Design & development

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

Evaluation board

AMC1100EVM — AMC1100 Evaluation Module

The AMC1100 is an isolated single-channel analog amplifier an output separated from the input circuitry by a silicon dioxide (SiO2) barrier that is highly resistant to magnetic interference. The AMC1100 is used in high-resolution measurement applications including current monitoring, industrial (...)

User guide: PDF
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Support software

ELETR-3P-DIGITAL-POWER — Electronic Minds digital power design support

Electronic Minds is a world class team of engineers and technologists who are driven by one common desire – to rapidly innovate leading edge technology for their clients. Their expertise, proven experience, and attention to detail allows partners to deliver industry-leading Industrial, Grid, (...)

From: Electronic Minds Ltd.
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Simulation model

AMC1100 TINA-TI Reference Design

SBAM153.TSC (123 KB) - TINA-TI reference design
Supported products & hardware
Simulation model

AMC1100 TINA-TI Spice Model

SBAM154.ZIP (28 KB) - TINA-TI Spice model
Supported products & hardware
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.
Supported products & hardware
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

TIDA-00555 — Isolated Current & Voltage Measurement Using Fully Differential Isolation Amplifier Reference Design

TIDA-00555 demonstrates the use of AMC1100, a fully differential isolation amplifier, as an analog front end to measure voltage and current. It demonstrates measurement of voltage inputs in an input-to-output isolation configuration and current inputs in a channel-to-channel isolation (...)

Supported products & hardware
Reference design

TIDA-010065 — High-efficiency, low-emission, isolated DC/DC converter-based analog input module reference design

This reference design is a simplified architecture for generating an isolated power supply for isolated amplifiers for measuring isolated voltages and currents. A fully integrated DC/DC converter with reinforced isolation operating from a 5-V input with configurable 5-V or 5.4-V output (headroom (...)
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
SOP (DUB) 8 Ultra Librarian
SOIC (DWV) 8 Ultra Librarian
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