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AMC1301

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±250 mV-Input Precision Reinforced Isolated Amplifier for Current Sensing

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±250 mV-Input Precision Reinforced Isolated Amplifier for Current Sensing

AMC1301

ACTIVE
Data sheet Order now

Product details

Parameters

Input range (Vp-p) ±0.25 Isolation working voltage VIOWM (rms) (V) 1000 Isolation transient overvoltage VIOTM (peak) (V) 7000 CMTI (Min) (kV/µs) 15 Input offset (+/-) (Max) (mV) 0.2 Input offset drift (+/-) (Typ) (uV/C) 1 Gain error (+/-) (Max) (%) 0.3 Gain error drift (+/-) (Typ) (ppm/°C) 15 Gain non-linearity (+/-) (Max) (%) 0.03 Small signal bandwidth (Typ) (kHz) 210 Rating Catalog Operating temperature range (C) -40 to 125, -55 to 125 open-in-new Find other Isolated amplifiers

Package | Pins | Size

SOIC (DWV) 8 67 mm² 5.85 x 11.5 open-in-new Find other Isolated amplifiers

Features

  • ±250-mV input voltage range optimized for current measurement using shunt resistors
  • Low offset error and drift:
    ±200 µV at 25°C, ± 3 µV/°C
  • Fixed gain: 8.2
  • Very low gain error and drift:
    ±0.3% at 25°C, ± 50 ppm/°C
  • Very low nonlinearity and drift:
    0.03%, 1 ppm/°C
  • 3.3-V operation on high-side and low-side
  • System-level diagnostic features
  • Safety-related certifications:
    • 7000-VPK reinforced isolation per
      DIN VDE V 0884-11: 2017-01
    • 5000-VRMS isolation for 1 minute per UL1577
    • CAN/CSA no. 5A-component acceptance service notice and
      IEC 62368-1 end equipment standard
  • Fully specified over the extended industrial temperature range

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Description

The AMC1301 is a precision, isolated amplifier with an output separated from the input circuitry by an isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced galvanic isolation of up to 7 kVPEAK according to VDE V 0884-11 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 input of the AMC1301 is optimized for direct connection to shunt resistors or other low voltage-level signal sources. The excellent performance of the device supports accurate current control resulting in system-level power savings and, especially in motor control applications, lower torque ripple. The integrated common-mode overvoltage and missing high-side supply voltage detection features of the AMC1301 simplify system-level design and diagnostics.

The AMC1301 is fully specified over the extended industrial temperature range of –40°C to +125°C and is available in a wide-body 8-pin SOIC (DWV) package. The AMC1301S is specified over the temperature range of –55°C to +125°C.

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Technical documentation

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Type Title Date
* Datasheet AMC1301 Precision, ±250-mV Input, 3-µs Delay, Reinforced Isolated Amplifier datasheet (Rev. F) Apr. 29, 2020
White paper Best in Class Radiated Emissions EMI Perf. with AMC1300B-Q1 Isolated Amplifier Jun. 29, 2020
Application note 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
E-book Simplifying Current Sensing (Rev. A) Jan. 09, 2020
Technical articles Covering wide analog input measurement for grid protection and control using 24-bit delta-sigma ADCs Dec. 04, 2018
More literature Nonoptical Isolating Devices UL 1577 Certificate of Compliance (Rev. B) Nov. 26, 2018
Technical articles Chief Technology Officer Ahmad Bahai discusses isolation in a world of collaboration Oct. 02, 2018
User guide AMC130x Evaluation Module User's Guide (Rev. C) Jun. 28, 2018
User guide ISO5852SDW Driving and Protecting SiC and IGBT Power Modules May 24, 2018
White paper Understanding failure modes in isolators (Rev. A) May 10, 2018
Technical articles Why capacitive isolation: a vital building block for sensors in smart cities Jan. 16, 2018
Application note Thermocouple Temperature Measurements Using Isolated Amplifiers (Rev. A) Aug. 11, 2017
White paper Charging stations: Toward an EV support infrastructure May 09, 2017
Application note Interfacing a Differential-Output (Isolated) Amp to a Single-Ended Input ADC Apr. 19, 2017
White paper High Voltage Isolation Quality and Reliability for AMC130x Jun. 21, 2016
Selection guide Understanding isolation terminology and relevance May 23, 2016
User guide Shunt Based 200A Peak Current Measurement Using Isolation Amplifier Design Guide (Rev. A) Mar. 05, 2016
User guide 0-5 A, Single-Supply, 2 kV Isolated Current Sensing Solution Jun. 18, 2013

Design & development

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

Hardware development

EVALUATION BOARD Download
49
Description
The AMC1301EVM is an evaluation platform for the AMC1301, a 7kV reinforced isolation amplifier designed for use in current shunt measuring applications.  The AMC1301EVM allows the user to explore all the features of the AMC1301 device.
Features
  • Reinforced Isolation Amplifier; 7kV Peak, 10kV Surge
  • Fixed Gain of 8.2
  • +/-250 mV Input Range
  • Low Gain Error and Drift
  • Extended Industrial Temperature Range
View details
EVALUATION BOARD Download
149
Description

The ISO5852SDWEVM-017 is a compact, dual chanel isolated gate driver board providing drive, bias voltages, protection and diagnostic needed for half-bridge Sic MOSFET and IGBT Power Modules in standard 62-mm package. This TI EVM is based on 5.7-kVrms reinforced isolation driver IC ISO5852SDW in (...)

Features
  • 20-A peak, split output drive current with programmable drive voltages
  • Two 5-kVrms reinforced isolated channels to support up to 1700 V input rail
  • Short circuit protection with soft turn OFF and 2-A Miller clamp ability
  • Robust noise-immune solution with CMTI > 100 V/ns
  • Isolated module temperature and (...)
View details
EVALUATION BOARD Download
999
Description
The Vienna rectifier power topology is used in high power three phase power factor (AC-DC) applications such as off-board electric vehicle (EV) chargers and telecom rectifiers. This design illustrates how to control the power stage using C2000™ MCUs. This design uses an HSEC180 controlCARD (...)
Features

Hardware Features

  • EVM with interface to accept HSEC180 controlCARDs
  • Greater than 98% peak efficiency
  • Less than 2% THD at full load and low line
  • Up to 2.4KW design with three phase 400Vac VL-L Input
  • Hardware Files are in DigitalPower SDK at solutions (...)
View details

Design tools & simulation

SIMULATION MODEL Download
SBAM271B.TSC (121 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SBAM272A.ZIP (13 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBAM290D.ZIP (5 KB) - PSpice Model
SIMULATION TOOL 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
  • (...)
View details
CALCULATION TOOL Download
SBAR013A.ZIP (290 KB)

Reference designs

REFERENCE DESIGNS Download
Vienna Rectifier-Based Three Phase Power Factor Correction Reference Design Using C2000 MCU
TIDM-1000 — Vienna rectifier power topology is used in high power three phase power factor (AC-DC) applications such as off board EV chargers and telecom rectifiers. Control design of the rectifier can be complex. This design illustrates a method to control the power stage using C2000™ microcontrollers (...)
document-generic Schematic
REFERENCE DESIGNS Download
High Accuracy Analog Front End Using 16-Bit SAR ADC with ±10V Measurement Range Reference Design
TIDA-00834 — The TIDA-00834 reference design accurately measures voltage and current inputs using simultaneously sampled, 16-bit, ±10 V, bipolar input SAR ADC critical to identify power systems malfunction and power quality related failures accurately and quickly. This results in reduced power systems (...)
document-generic Schematic
REFERENCE DESIGNS Download
Reference design for reinforced isolation 3-phase inverter with current, voltage and temp protection
TIDA-00366 — This design provides a reference solution for a three-phase inverter rated up to 10kW, designed using the reinforced isolated gate driver UCC21530, reinforced isolated amplifiers AMC1301 and AMC1311, and MCU TMS320F28027. Lower system cost is achieved by using the AMC1301 to measure motor current (...)
document-generic Schematic
REFERENCE DESIGNS Download
Three-Phase Inverter Reference Design Using Gate Driver With Built-in Dead Time Insertion
TIDA-01540 — The TIDA-01540 reference design reduces system cost and enables a compact design for a reinforced isolated 10kW three phase inverter. A lower system cost and compact form factor is achieved by using a dual gate driver in a single package and bootstrap configuration to generate floating voltages for (...)
document-generic Schematic
REFERENCE DESIGNS Download
High Accuracy ±0.5% Current and Isolated Voltage Measurement Ref Design Using 24-Bit Delta-Sigma ADC
TIDA-00835 — The TIDA-00835 reference design allows for accurate voltage and current measurement using a bipolar input configuration by incorporating a four- channel, 24-bit simultaneously-sampling differential input Delta-Sigma ADC over wide dynamic range. The ADC is configured to measure ±2.5 V bipolar (...)
document-generic Schematic
REFERENCE DESIGNS Download
High-Bandwidth Phase Current and DC-Link Voltage Sensing Reference Design for Three-Phase Inverters
TIDA-01541 — The TIDA-01541 reference design reduces system cost and enables a compact design for isolated phase current and DC link voltage measurement in three-phase inverters, while achieving high bandwidth and sensing accuracy. The output of the isolated amplifiers is interfaced to the internal ADC of the (...)
document-generic Schematic
REFERENCE DESIGNS Download
2kW, 48V to 400V, >93% Efficiency, Isolated Bidirectional DC-DC Converter Reference Design for UPS
TIDA-00951 — The 2-kW isolated bidirectional DC-DC converter reference design (TIDA-00951) is capable of power transfer between a 400-V DC-BUS and a 12-14 cell lithium battery pack for use in UPS, battery backup and power storage applications. This reference design works as active clamped boost converter with (...)
document-generic Schematic
REFERENCE DESIGNS Download
Shunt-Based High Current Measurement (200-A) Reference Design with Reinforced Isolation Amplifier
TIDA-00912 — The TIDA-00912 TI Design provides a complete reference solution for isolated current measurement using external shunts, reinforced isolation amplifiers, and isolated power supply. The shunt voltage is limited to 25 mV max. This reduces power dissipation in the shunt to enable a high current (...)
document-generic Schematic
REFERENCE DESIGNS Download
Shunt-Based 200A Peak Current Measurement Reference Design Using Isolation Amplifier
TIDA-00445 — The TIDA-00445 TI design provides a reference solution for isolated current measurement using shunt and isolated amplifier. By limiting the shunt voltage to 25mV, this design is able to reduce power dissipation in the shunt and achieves a high current measurement range of up to 200A. Shunt voltage (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
SOIC (DWV) 8 View options

Ordering & quality

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