AMC1303M2520

ACTIVE

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:
    • ±50-mV or ±250-mV input voltage ranges
    • Manchester coded or uncoded bistream options
    • 10-MHz and 20-MHz clock 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-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: –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 bistream options
    • 10-MHz and 20-MHz clock 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-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: –40°C to +125°C

The AMC1303 (AMC1303x0510, AMC1303x0520, AMC1303x2510, and AMC1303x2520) is a family of precision, delta-sigma (ΔΣ) modulators 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 VPK 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 AMC1303 is optimized for direct connection to shunt resistors or other low voltage-level signal sources. The ±50-mV input voltage range option allows significant reduction of the power dissipation through the shunt. The output bit-stream of the AMC1303 is synchronized to the internally generated clock and is Manchester coded (AMC1303Ex) or uncoded (AMC1303Mx). 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 an effective output data rate of 78 kSPS.

The bitstream output of the Manchester coded AMC1303Ex versions supports single-wire data and clock transfer without having to consider the setup and hold time requirements of the receiving device.

The AMC1303 (AMC1303x0510, AMC1303x0520, AMC1303x2510, and AMC1303x2520) is a family of precision, delta-sigma (ΔΣ) modulators 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 VPK 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 AMC1303 is optimized for direct connection to shunt resistors or other low voltage-level signal sources. The ±50-mV input voltage range option allows significant reduction of the power dissipation through the shunt. The output bit-stream of the AMC1303 is synchronized to the internally generated clock and is Manchester coded (AMC1303Ex) or uncoded (AMC1303Mx). 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 an effective output data rate of 78 kSPS.

The bitstream output of the Manchester coded AMC1303Ex versions supports 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 AMC1303x Small, High-Precision, Reinforced Isolated Delta-Sigma Modulators With Internal Clock datasheet (Rev. C) PDF | HTML 10 Feb 2020
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

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