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AMC1305M05

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Modulador aislado reforzado con detección de corriente de precisión y entrada de ±50 mV

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AMC1305M05

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Detalles del producto

Device type Current sensing Peak-to-peak input voltage range (V) 50mV Interface type Serial CMOS Sample rate (max) (Msps) 20 Rating Catalog CMTI (min) (kV/µs) 15 Number of input channels 1 Architecture Delta-Sigma SNR (dB) 76 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 38.4 SFDR (dB) 80 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5000 Working isolation voltage (VIOWM) (Vrms) 1500 Transient isolation voltage (VIOTM) (VPK) 7 Creepage (min) (mm) 8.5 Clearance (min) (mm) 8.5
Device type Current sensing Peak-to-peak input voltage range (V) 50mV Interface type Serial CMOS Sample rate (max) (Msps) 20 Rating Catalog CMTI (min) (kV/µs) 15 Number of input channels 1 Architecture Delta-Sigma SNR (dB) 76 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 38.4 SFDR (dB) 80 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5000 Working isolation voltage (VIOWM) (Vrms) 1500 Transient isolation voltage (VIOTM) (VPK) 7 Creepage (min) (mm) 8.5 Clearance (min) (mm) 8.5
SOIC (DW) 16 106.09 mm² 10.3 x 10.3
  • Pin-compatible family optimized for shunt-resistor-based current measurements:
    • ±50-mV or ±250-mV input voltage ranges
    • CMOS or LVDS digital interface options
  • Excellent DC performance supporting high-precision sensing on system level:
    • Offset error: ±50 µV or ±150 µV (max)
    • Offset drift: 1.3 µV/°C (max)
    • Gain error: ±0.3% (max)
    • Gain drift: ±40 ppm/°C (max)
  • 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
  • Transient immunity: 15 kV/µs (min)
  • High electromagnetic field immunity
    (see application note SLLA181A)
  • External 5-MHz to 20-MHz clock input for
    easier system-level synchronization
  • Fully specified over the extended industrial temperature range
  • Pin-compatible family optimized for shunt-resistor-based current measurements:
    • ±50-mV or ±250-mV input voltage ranges
    • CMOS or LVDS digital interface options
  • Excellent DC performance supporting high-precision sensing on system level:
    • Offset error: ±50 µV or ±150 µV (max)
    • Offset drift: 1.3 µV/°C (max)
    • Gain error: ±0.3% (max)
    • Gain drift: ±40 ppm/°C (max)
  • 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
  • Transient immunity: 15 kV/µs (min)
  • High electromagnetic field immunity
    (see application note SLLA181A)
  • External 5-MHz to 20-MHz clock input for
    easier system-level synchronization
  • Fully specified over the extended industrial temperature range

The AMC1305 is a precision, delta-sigma (ΔΣ) modulator with the output separated from the input circuitry by a capacitive double isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced isolation of up to 7000 VPEAK according to the DIN VDE V 0884-11, UL1577, and CSA standards. Used in conjunction with isolated power supplies, the device prevents noise currents on a high common-mode voltage line from entering the local system ground and interfering with or damaging low voltage circuitry.

The AMC1305 is optimized for direct connection to shunt resistors or other low voltage level signal sources and supports excellent dc and ac performance. Shunt resistors are typically used to sense currents in motor drives, green energy generation systems, or other industrial applications. By using an appropriate digital filter (that is, as integrated on the TMS320F2837x) to decimate the bit stream, the device can achieve 16 bits of resolution with a dynamic range of 85 dB (13.8 ENOB) at a data rate of 78 kSPS.

On the high-side, the modulator is supplied with a nominal voltage of 5 V (AVDD), whereas the isolated digital interface operates from a 3.3-V or 5-V power supply (DVDD).

The AMC1305 is available in a wide-body SOIC-16 (DW) package and is specified from –40°C to +125°C.

The AMC1305 is a precision, delta-sigma (ΔΣ) modulator with the output separated from the input circuitry by a capacitive double isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced isolation of up to 7000 VPEAK according to the DIN VDE V 0884-11, UL1577, and CSA standards. Used in conjunction with isolated power supplies, the device prevents noise currents on a high common-mode voltage line from entering the local system ground and interfering with or damaging low voltage circuitry.

The AMC1305 is optimized for direct connection to shunt resistors or other low voltage level signal sources and supports excellent dc and ac performance. Shunt resistors are typically used to sense currents in motor drives, green energy generation systems, or other industrial applications. By using an appropriate digital filter (that is, as integrated on the TMS320F2837x) to decimate the bit stream, the device can achieve 16 bits of resolution with a dynamic range of 85 dB (13.8 ENOB) at a data rate of 78 kSPS.

On the high-side, the modulator is supplied with a nominal voltage of 5 V (AVDD), whereas the isolated digital interface operates from a 3.3-V or 5-V power supply (DVDD).

The AMC1305 is available in a wide-body SOIC-16 (DW) package and is specified from –40°C to +125°C.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet AMC1305x High-Precision, Reinforced Isolated Delta-Sigma Modulators datasheet (Rev. G) PDF | HTML 07 ene 2020
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. Z) 08 ene 2026
White paper Comparing Isolated Amplifiers and Isolated Modulators (Rev. B) PDF | HTML 04 jun 2024
Application note Clock Edge Delay Compensation With Isolated Modulators Digital Interface to MCUs (Rev. A) PDF | HTML 12 ene 2024
Application brief Shunt Resistor Selection for Isolated Data Converters PDF | HTML 04 may 2023
Application note Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 29 mar 2023
Application brief Integrated, Current Sensing Analog-to-Digital Converter (Rev. A) PDF | HTML 28 sep 2021
Functional safety information Isolation in solar power converters: Understanding the IEC62109-1 safety standar (Rev. A) 18 may 2018
White paper High Voltage Isolation Quality and Reliability for AMC130x 21 jun 2016
Application note How to Optimize Performance of AMC1304/05M05 in Voltage Sensing 31 ago 2015
Analog Design Journal Analog Applications Journal 4Q 2014 24 oct 2014
Analog Design Journal Isolated sensing systems with low power consumption 24 oct 2014

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

AMC1305M05EVM — Módulo de evaluación de AMC1305M05 para modulador aislado reforzado con entrada de ±50 mV

The AMC1305M05 is an isolated single-channel delta-sigma (ΔΣ) modulator used in high-resolution measurement applications including current monitoring, industrial process control, and motor positioning systems. AMC1305M05 evaluation module (EVM) is a small-form-factor board containing (...)

Guía del usuario: PDF
No disponible en TI.com
Modelo de simulación

AMC1305M25 IBIS Model

SLAM233.ZIP (24 KB) - IBIS Model
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Herramienta de cálculo

MODULATOR-TIMING-EXCEL-CALC — Isolated Modulator Digital Communication Timing Calculation Tool

Use this excel calculator to confirm the correct clock setup and hold timing compensation method with an isolated modulator and SDFM controller.
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Herramienta de cálculo

SBAR010 — Delta Sigma Modulator Filter Calculator

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Productos y hardware compatibles
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Herramienta de cálculo

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.
Productos y hardware compatibles

Productos y hardware compatibles
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Herramienta de cálculo

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.
Productos y hardware compatibles

Productos y hardware compatibles
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Diseños de referencia

TIDA-00080 — Diseño de referencia de módulo de medición de corriente y tensión CA/CC basado en modulador delta-si

This isolated shunt based current measurement unit enables high accuracy current measurement without the use of Current Transformers (CT). The isolation is achieved through the use of AMC1304 that incorporates both high voltage isolation as well as the Delta-Sigma Modulator. This solution (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDA-01094 — Diseño de referencia de potencia sin transformador magnéticamente inmune para la medición de corrien

El diseño de referencia TIDA-01094 implementa un sistema de medición de energía trifásica sin transformador de clase 0.5 con sensores de derivación aislada mediante el uso de moduladores delta-sigma aislados. Los circuitos de salida de los moduladores delta-sigma están aislados capacitivamente de (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDA-00171 — Diseño de referencia de medición de tensión y derivación de corriente aislada para controles de moto

This evaluation kit and reference design implements the AMC130x reinforced isolated delta-sigma modulators along with integrated Sinc filters in the C2000™ TMS320F28377D Delfino™ microcontroller. The design provides an ability to evaluate the  performance of these measurements: three motor (...)
Guía del usuario: PDF
Esquema: PDF
Diseños de referencia

TIPD165 — Diseño de referencia de detección de corriente aislada y basada en derivación

This verified reference design implements isolated current sensing data acqusition based on AMC1304M25 isolated delta-sigma (ΔΣ) modulator and TMS320F28377D microcontroller. This design was made for shunt-based current measurement applications which require excellent galvanic (...)
Guía del usuario: PDF
Esquema: PDF
Diseños de referencia

TIDA-00209 — Diseño de referencia de medición de tensión y derivación de corriente aislada para controles de moto

This reference design uses the AMC130x reinforced isolated delta-sigma modulators along with AM437x Sitara™ ARM® Cortex® -A9 Processor, which implements Sinc filters on PRU-ICSS. The design provides an ability to evaluate the performance of these measurements: three motor currents, three (...)
Design guide: PDF
Esquema: PDF
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