AMC1303E2520

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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) 34.3 SFDR (dB) 100 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) 34.3 SFDR (dB) 100 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
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 VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. R) 12 Jul 2022
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
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 ±250-mV input, precision current sensing reinforced isolated modulator with 20-MHz int 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 AMC3306M25 ±250-mV input, precision current sensing reinforced isolated modulator with integrated DC/DC
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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 ±250-mV input, precision current sensing reinforced isolated modulator with 20-MHz int 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
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SOIC (DWV) 8 View options

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