Product details

Device type Current sensing Input range (Vp-p) 250mV Interface type Serial CMOS Sample rate (Max) (MSPS) 21 Rating Catalog Isolation (kV peak) 7 CMTI (Min) (kV/µs) 50 Number of input channels 1 Architecture Delta-Sigma SNR (dB) 82 Operating temperature range (C) -40 to 125 INL (Max) (+/-LSB) 4 Power consumption (Typ) (mW) 42.4
Device type Current sensing Input range (Vp-p) 250mV Interface type Serial CMOS Sample rate (Max) (MSPS) 21 Rating Catalog Isolation (kV peak) 7 CMTI (Min) (kV/µs) 50 Number of input channels 1 Architecture Delta-Sigma SNR (dB) 82 Operating temperature range (C) -40 to 125 INL (Max) (+/-LSB) 4 Power consumption (Typ) (mW) 42.4
SOIC (DWV) 8 67 mm² 5.85 x 11.5
  • Pin-compatible family optimized for shunt-resistor-based current measurements:
    • ±50-mV or ±250-mV input voltage ranges
    • Manchester coded or uncoded bitstream options
  • Excellent DC performance:
    • Offset error: ±50 µV or ±100 µV (max)
    • Offset drift: 1 µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain drift: ±40 ppm/°C (max)
  • Transient immunity: 100 kV/µs (typ)
  • System-level diagnostic features
  • Safety-related certifications:
    • 7000-VPEAK 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: –40°C to +125°C
  • Pin-compatible family optimized for shunt-resistor-based current measurements:
    • ±50-mV or ±250-mV input voltage ranges
    • Manchester coded or uncoded bitstream options
  • Excellent DC performance:
    • Offset error: ±50 µV or ±100 µV (max)
    • Offset drift: 1 µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain drift: ±40 ppm/°C (max)
  • Transient immunity: 100 kV/µs (typ)
  • System-level diagnostic features
  • Safety-related certifications:
    • 7000-VPEAK 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: –40°C to +125°C

The AMC1306 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 and UL1577 standards. Used in conjunction with isolated power supplies, this isolated modulator separates parts of the system that operate on different common-mode voltage levels and protects lower-voltage parts from damage.

The input of the AMC1306 is optimized for direct connection to shunt resistors or other low voltage-level signal sources. The unique low input voltage range of the ±50-mV device allows significant reduction of the power dissipation through the shunt and supports excellent ac and dc performance. The output bitstream of the AMC1306 is Manchester coded (AMC1306Ex) or uncoded (AMC1306Mx), depending on the derivate. By using an integrated digital filter (such as those in the TMS320F2807x or TMS320F2837x microcontroller families) to decimate the bitstream, the device can achieve 16 bits of resolution with a dynamic range of 85 dB at a data rate of 78 kSPS.

The bitstream output of the Manchester coded AMC1306Ex versions support single-wire data and clock transfer without having to consider the setup and hold time requirements of the receiving device.

The AMC1306 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 and UL1577 standards. Used in conjunction with isolated power supplies, this isolated modulator separates parts of the system that operate on different common-mode voltage levels and protects lower-voltage parts from damage.

The input of the AMC1306 is optimized for direct connection to shunt resistors or other low voltage-level signal sources. The unique low input voltage range of the ±50-mV device allows significant reduction of the power dissipation through the shunt and supports excellent ac and dc performance. The output bitstream of the AMC1306 is Manchester coded (AMC1306Ex) or uncoded (AMC1306Mx), depending on the derivate. By using an integrated digital filter (such as those in the TMS320F2807x or TMS320F2837x microcontroller families) to decimate the bitstream, the device can achieve 16 bits of resolution with a dynamic range of 85 dB at a data rate of 78 kSPS.

The bitstream output of the Manchester coded AMC1306Ex versions support single-wire data and clock transfer without having to consider the setup and hold time requirements of the receiving device.

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Technical documentation

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Type Title Date
* Data sheet AMC1306x Small, High-Precision, Reinforced Isolated Delta-Sigma Modulators With High CMTI datasheet (Rev. C) PDF | HTML 16 Jan 2020
Certificate UL Certificate of Compliance Vol4 Sec5 E181974 (Rev. A) 23 Jan 2023
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. R) 12 Jul 2022
White paper Addressing high-voltage design challenges with reliable and affordable isolation (Rev. A) PDF | HTML 06 Jun 2022
White paper 以可靠且經濟實惠的隔離技術解決高電壓設計難題 (Rev. A) PDF | HTML 06 Jun 2022
White paper 높 은 신뢰도와 합리적인 가격대의 절연 기술 개발과 관련한 고전압 설계 문 제의 해결.. (Rev. A) PDF | HTML 06 Jun 2022
Certificate TUEV Technical Report No. 713203936 20 Oct 2021
E-book Ein Techniker-Leitfaden für Industrieroboter-Designs 25 Mar 2020
E-book E-book: An engineer’s guide to industrial robot designs 12 Feb 2020
White paper Comparing isolated amplifiers and isolated modulators (Rev. A) 28 Feb 2019
Application note Digital Filter Types in Delta-Sigma ADCs PDF | HTML 27 Jun 2017
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

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

Evaluation board

AMC1306EVM

AMC1306 small reinforced isolated modulator evaluation module

The AMC1306 devices are 1-bit modulators with an output buffer separated from the input interface circuitry by a silicon dioxide (SiO2) isolation barrier. The isolation barrier provides galvanic isolation of up to 8000 VPEAK. When used in combination with an FPGA or other digital filter, AMC1306 (...)
User guide: PDF
Not available on TI.com
Simulation model

AMC1306M25 IBIS Model (Rev. A)

SBAM315A.ZIP (35 KB) - IBIS Model
Calculation tool

Delta Sigma Modulator Filter Calculator

SBAR010.ZIP (3354 KB)
Reference designs

TIDA-00080 — Isolated delta-sigma modulator based AC/DC voltage and current measurement module reference design

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
Schematic: PDF
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