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AMC1303M2520

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±250mV input, precision current sensing reinforced isolated modulator with 20MHz internal clock

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Data sheet

AMC1303M2520

ACTIVE
Data sheet Order now

Product details

Device type Current sensing Peak-to-peak input voltage range (V) 250mV Interface type Serial CMOS Sample rate (max) (Msps) 20 Rating Catalog CMTI (min) (kV/µs) 50 Number of input channels 1 Architecture Delta-Sigma SNR (dB) 84.5 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 36 SFDR (dB) 98 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) 250mV Interface type Serial CMOS Sample rate (max) (Msps) 20 Rating Catalog CMTI (min) (kV/µs) 50 Number of input channels 1 Architecture Delta-Sigma SNR (dB) 84.5 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 36 SFDR (dB) 98 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 (DWV) 8 67.275 mm² 5.85 x 11.5
  • Pin-compatible family optimized for shunt-resistor-based current measurements:
    • ±50mV or ±250mV input voltage ranges
    • Manchester-coded or uncoded bitstream options
    • 10MHz and 20MHz clock options
  • Excellent DC performance:
    • Offset error: ±50µV or ±100µV (max)
    • Offset drift: ±1µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain drift: ±40ppm/°C (max)
  • Transient immunity: 100kV/µs (typ)
  • System-level diagnostic features
  • Safety-related certifications:
    • 7000VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5000VRMS 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:
    • ±50mV or ±250mV input voltage ranges
    • Manchester-coded or uncoded bitstream options
    • 10MHz and 20MHz clock options
  • Excellent DC performance:
    • Offset error: ±50µV or ±100µV (max)
    • Offset drift: ±1µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain drift: ±40ppm/°C (max)
  • Transient immunity: 100kV/µs (typ)
  • System-level diagnostic features
  • Safety-related certifications:
    • 7000VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5000VRMS 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 AMC1303 (AMC1303x0510, AMC1303x0520, AMC1303x2510, and AMC1303x2520) is a family of precision, isolated delta-sigma (ΔΣ) modulators. The output is separated from the input circuitry by a capacitive isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced isolation of up to 7000VPK according to the DIN EN IEC 60747-17 (VDE 0884-17) and UL1577 standards, and supports a working voltage up to 1.5kVRMS

The input of the AMC1303 device is optimized for direct connection to shunt resistors or other, low-impedance signal sources. The small size, high DC accuracy, low temperature drift, and high common-mode transient immunity (CMTI) support accurate isolated current sensing in noisy high-voltage applications.

The output bitstream of the AMC1303 is synchronized to the internally generated clock and is Manchester coded (AMC1303Ex) or uncoded (AMC1303Mx). Combined with a digital low-pass filter (such as a Sinc-filter) the device achieves 85dB of dynamic range at an effective output data rate of 78kSPS.

The AMC1303 (AMC1303x0510, AMC1303x0520, AMC1303x2510, and AMC1303x2520) is a family of precision, isolated delta-sigma (ΔΣ) modulators. The output is separated from the input circuitry by a capacitive isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced isolation of up to 7000VPK according to the DIN EN IEC 60747-17 (VDE 0884-17) and UL1577 standards, and supports a working voltage up to 1.5kVRMS

The input of the AMC1303 device is optimized for direct connection to shunt resistors or other, low-impedance signal sources. The small size, high DC accuracy, low temperature drift, and high common-mode transient immunity (CMTI) support accurate isolated current sensing in noisy high-voltage applications.

The output bitstream of the AMC1303 is synchronized to the internally generated clock and is Manchester coded (AMC1303Ex) or uncoded (AMC1303Mx). Combined with a digital low-pass filter (such as a Sinc-filter) the device achieves 85dB of dynamic range at an effective output data rate of 78kSPS.
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Technical documentation

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Type Title Date
* Data sheet AMC1303x Small, High-Precision, Reinforced Isolated Delta-Sigma Modulators With Internal Clock datasheet (Rev. D) PDF | HTML 29 Oct 2024
Application brief Shunt-Widerstandsauswahl für isolierte Datenwandler PDF | HTML 15 Aug 2024
Application brief 절연 데이터 컨버터를 위한 션트 레지스터 선택 PDF | HTML 15 Aug 2024
Application note Taktflankenverzögerungskompensation mit isolierten Modulatoren Digitale Schnittstelle zu MCUs (Rev. A) PDF | HTML 16 Jul 2024
White paper Vergleich isolierter Verstärker und isolierter Modulatoren (Rev. B) PDF | HTML 02 Jul 2024
White paper 절연 증폭기와 절연 모듈레이터 비교 (Rev. B) PDF | HTML 02 Jul 2024
Application note MCU로의 절연 모듈레이터 디지털 인터페이스를 사용한 클록 에지 지 연 보상 (Rev. A) PDF | HTML 31 May 2024
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. S) 29 Feb 2024
Application note Clock Edge Delay Compensation With Isolated Modulators Digital Interface to MCUs (Rev. A) PDF | HTML 12 Jan 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
Certificate UL Certificate of Compliance Vol4 Sec5 E181974 (Rev. A) 23 Jan 2023
Certificate TUEV Technical Report No. 713203936 20 Oct 2021
White paper Comparing isolated amplifiers and isolated modulators (Rev. A) 28 Feb 2019

Design & development

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Evaluation board

AMC1303EVM — AMC1303 small, high-precision, reinforced isolated modulator evaluation module

The AMC1303 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, AMC1303 (...)
User guide: PDF
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Simulation model

AMC1303X IBIS Model

SBAM327.ZIP (29 KB) - IBIS Model
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Calculation tool

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.
Supported products & hardware

Supported products & hardware

Products
Isolated ADCs
AMC1303E0510 — ±50-mV input, current sensing reinforced isolated modulator with 10-MHz int clock & Manchester code AMC1303E0520 — ±50-mV input, current sensing reinforced isolated modulator with 20-MHz int clock & Manchester code AMC1303E2510 — ±250-mV input, current sensing reinforced isolated modulator with 10-MHz int clock & Manchester code AMC1303E2520 — ±250-mV input, current sensing reinforced isolated modulator with 20-MHz int clock & Manchester code AMC1303M0510 — ±50-mV input, precision current sensing reinforced isolated modulator with 10-MHz int clock AMC1303M0520 — ±50-mV input, precision current sensing reinforced isolated modulator with 20-MHz int clock AMC1303M2510 — ±250-mV input, precision current sensing reinforced isolated modulator with 10-MHz int clock AMC1303M2520 — ±250mV input, precision current sensing reinforced isolated modulator with 20MHz internal clock AMC1304L05 — ±50-mV input, precision current sensing reinforced isolated modulator with LDO & LVDS interface AMC1304L05-Q1 — Automotive, ±50-mV input, current sensing reinforced isolated modulator with LDO & LVDS interface AMC1304L25 — ±250-mV input, precision current sensing reinforced isolated modulator with LDO & LVDS Interface AMC1304L25-Q1 — Automotive, ±250-mV input, current sensing reinforced isolated modulator with LDO & LVDS Interface AMC1304M05 — ±50-mV input, precision current sensing reinforced isolated modulator with LDO AMC1304M05-Q1 — Automotive, ±50-mV input, precision current sensing reinforced isolated modulator with LDO AMC1304M25 — ±250-mV input, precision current sensing reinforced isolated modulator with LDO AMC1304M25-Q1 — Automotive, ±250-mV input, precision current sensing reinforced isolated modulator with LDO AMC1305L25 — ±250-mV input, precision current sensing reinforced isolated modulator with LVDS interface AMC1305L25-Q1 — Automotive, ±250-mV input, current sensing reinforced isolated modulator with LVDS Interface AMC1305M05 — ±50-mV input, precision current sensing reinforced isolated modulator AMC1305M05-Q1 — Automotive, ±50-mV input, precision current sensing reinforced isolated modulator AMC1305M25 — ±250-mV input, precision current sensing reinforced isolated modulator AMC1305M25-Q1 — Automotive, ±250-mV input, precision current sensing reinforced isolated modulator AMC1306E05 — ±50-mV input, precision current sensing reinforced isolated modulator with Manchester code AMC1306E25 — ±250-mV input, precision current sensing reinforced isolated modulator with Manchester code AMC1306M05 — ±50-mV input, precision current sensing reinforced isolated modulator AMC1306M05-Q1 — Automotive, ±50-mV input, precision current sensing reinforced isolated modulator AMC1306M25 — ±250-mV input, precision current sensing reinforced isolated modulator AMC1306M25-Q1 — Automotive, ±250-mV input, precision current sensing reinforced isolated modulator AMC1306M25E — Reinforced isolated modulator with -55C extended temperature range AMC3306M05 — ±50-mV input, precision current sensing reinforced isolated modulator with integrated DC/DC AMC3306M05-Q1 — Automotive, ±50-mV reinforced isolated modulator with integrated DC/DC AMC3306M25 — ±250-mV input, precision current sensing reinforced isolated modulator with integrated DC/DC AMC3306M25-Q1 — Automotive, ±250-mV reinforced isolated modulator with integrated DC/DC
Download options
Calculation tool

SBAR010 — Delta Sigma Modulator Filter Calculator

Supported products & hardware

Supported products & hardware

Products
Isolated ADCs
AMC1106E05 — Small Basic Isolated Delta-Sigma Modulator With ±50mV Input and Manchester-Encoded CMOS Interface AMC1106M05 — ±50-mV input, precision current sensing basic isolated modulator AMC1203 — ±250-mV input, precision current sensing basic isolated modulator with int clock AMC1204 — ±250-mV input, precision current sensing basic isolated modulator AMC1204-Q1 — Automotive, ±250-mV input, precision current sensing basic isolated modulator AMC1210 — 4-channel digital filter for delta-sigma modulators AMC1303E0510 — ±50-mV input, current sensing reinforced isolated modulator with 10-MHz int clock & Manchester code AMC1303E0520 — ±50-mV input, current sensing reinforced isolated modulator with 20-MHz int clock & Manchester code AMC1303E2510 — ±250-mV input, current sensing reinforced isolated modulator with 10-MHz int clock & Manchester code AMC1303E2520 — ±250-mV input, current sensing reinforced isolated modulator with 20-MHz int clock & Manchester code AMC1303M0510 — ±50-mV input, precision current sensing reinforced isolated modulator with 10-MHz int clock AMC1303M0520 — ±50-mV input, precision current sensing reinforced isolated modulator with 20-MHz int clock AMC1303M2510 — ±250-mV input, precision current sensing reinforced isolated modulator with 10-MHz int clock AMC1303M2520 — ±250mV input, precision current sensing reinforced isolated modulator with 20MHz internal clock AMC1304L05 — ±50-mV input, precision current sensing reinforced isolated modulator with LDO & LVDS interface AMC1304L05-Q1 — Automotive, ±50-mV input, current sensing reinforced isolated modulator with LDO & LVDS interface AMC1304L25 — ±250-mV input, precision current sensing reinforced isolated modulator with LDO & LVDS Interface AMC1304L25-Q1 — Automotive, ±250-mV input, current sensing reinforced isolated modulator with LDO & LVDS Interface AMC1304M05 — ±50-mV input, precision current sensing reinforced isolated modulator with LDO AMC1304M05-Q1 — Automotive, ±50-mV input, precision current sensing reinforced isolated modulator with LDO AMC1304M25 — ±250-mV input, precision current sensing reinforced isolated modulator with LDO AMC1304M25-Q1 — Automotive, ±250-mV input, precision current sensing reinforced isolated modulator with LDO AMC1305L25 — ±250-mV input, precision current sensing reinforced isolated modulator with LVDS interface AMC1305L25-Q1 — Automotive, ±250-mV input, current sensing reinforced isolated modulator with LVDS Interface AMC1305M05 — ±50-mV input, precision current sensing reinforced isolated modulator AMC1305M05-Q1 — Automotive, ±50-mV input, precision current sensing reinforced isolated modulator AMC1305M25 — ±250-mV input, precision current sensing reinforced isolated modulator AMC1305M25-Q1 — Automotive, ±250-mV input, precision current sensing reinforced isolated modulator AMC1306E05 — ±50-mV input, precision current sensing reinforced isolated modulator with Manchester code AMC1306E25 — ±250-mV input, precision current sensing reinforced isolated modulator with Manchester code AMC1306M05 — ±50-mV input, precision current sensing reinforced isolated modulator AMC1306M25 — ±250-mV input, precision current sensing reinforced isolated modulator AMC1336 — ±1-V input, precision voltage sensing reinforced isolated modulator AMC1336-Q1 — Automotive, ±1-V input, precision voltage sensing reinforced isolated delta-sigma modulator AMC3306M05 — ±50-mV input, precision current sensing reinforced isolated modulator with integrated DC/DC AMC3306M25 — ±250-mV input, precision current sensing reinforced isolated modulator with integrated DC/DC AMC3336 — ±1-V input, precision voltage sensing reinforced isolated modulator with integrated DC/DC AMC3336-Q1 — Automotive ±1-V input, precision voltage sensing reinforced isolated modulator with integrated DC/DC
Precision ADCs
ADS1201 — High Dynamic Range Delta-Sigma Modulator ADS1202 — Current-shunt delta-sigma modulator, 10MHz CLK, +/-250mV input, 16-bit resolution ADS1203 — Current-shunt delta-sigma modulator, 10MHz CLK, +/-250mV input, 16-bit resolution, ext ref option ADS1204 — Four Delta-Sigma Modulators, 10MHz CLK, 0-5V Input, 16-Bit Resolution ADS1205 — Two 1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulator ADS1208 — 10MHz Modulator With Built-in Current Excitation for Hall Sensors ADS1209 — 16-Bit, 10MHz, 2-Ch, Delta-Sigma Modulator AMC1035 — Precision delta-sigma modulator with ±1-V bipolar input and 2.5-V reference output AMC1035-Q1 — Automotive precision delta-sigma modulator with ±1-V bipolar input and 2.5-V reference output
Hardware development
Evaluation board
AMC1304L25EVM — AMC1304L25 Evaluation Module
Download
Reference designs

TIDA-01349 — IPM Interface Reference Design for Inverters Using Single Package Six Channel Digital Isolator

This reference design realizes a three-phase inverter subsystem for AC inverter drives and servo drives using an intelligent power module (IPM). Reinforced isolation is present between the microcontroller (MCU) and the IPM-based power stage. The PWM signals are isolated using the single-package, (...)
Design guide: PDF
Schematic: PDF
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SOIC (DWV) 8 Ultra Librarian
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