Product details

Device type Current sensing Peak-to-peak input voltage range (V) 250mV Interface type Serial Sample rate (max) (Msps) 0.04 Rating Catalog CMTI (min) (kV/µs) 15 Number of input channels 1 Architecture Delta-Sigma SNR (dB) 85 Operating temperature range (°C) -40 to 105 Power consumption (typ) (mW) 80 SFDR (dB) 95 Isolation rating Basic Withstand isolation voltage (VISO) (Vrms) 4000 Working isolation voltage (VIOWM) (Vrms) 560 Transient isolation voltage (VIOTM) (VPK) 4 Creepage (min) (mm) 8 Clearance (min) (mm) 8
Device type Current sensing Peak-to-peak input voltage range (V) 250mV Interface type Serial Sample rate (max) (Msps) 0.04 Rating Catalog CMTI (min) (kV/µs) 15 Number of input channels 1 Architecture Delta-Sigma SNR (dB) 85 Operating temperature range (°C) -40 to 105 Power consumption (typ) (mW) 80 SFDR (dB) 95 Isolation rating Basic Withstand isolation voltage (VISO) (Vrms) 4000 Working isolation voltage (VIOWM) (Vrms) 560 Transient isolation voltage (VIOTM) (VPK) 4 Creepage (min) (mm) 8 Clearance (min) (mm) 8
SOIC (DW) 16 106.09 mm² 10.3 x 10.3 SOP (DUB) 8 98.8 mm² 9.5 x 10.4 SOP (PSA) 8 41.633 mm² 5.27 x 7.9
  • 16-Bit Resolution
  • SNR: 80.5dB min
  • THD: –88dB max (AMC1203B)
  • ±280mV Input Range with +5V Supply
  • Internal 2.5V Reference Voltage: 1% Accuracy
  • Gain Error: ±1% (AMC1203B)
  • UL1577, IEC60747-5-2 (VDE0884, Rev. 2), and IEC61010-1 Approved
    • Isolation: 4000VPEAK,
      Working Voltage: 560V
    • Transient Immunity: 15kV/µs
  • Typical 25-Year Life at Rated Working Voltage
    (see Application Report SLLA197)
  • Specified Temperature Range:
    –40°C to +105°C
  • APPLICATIONS
    • Shunt Based Current Sensing in:
      • Motor Control
      • Uninterruptible Power Supplies
      • Power Inverters
      • Industrial Process Control

All other trademarks are the property of their respective owners

  • 16-Bit Resolution
  • SNR: 80.5dB min
  • THD: –88dB max (AMC1203B)
  • ±280mV Input Range with +5V Supply
  • Internal 2.5V Reference Voltage: 1% Accuracy
  • Gain Error: ±1% (AMC1203B)
  • UL1577, IEC60747-5-2 (VDE0884, Rev. 2), and IEC61010-1 Approved
    • Isolation: 4000VPEAK,
      Working Voltage: 560V
    • Transient Immunity: 15kV/µs
  • Typical 25-Year Life at Rated Working Voltage
    (see Application Report SLLA197)
  • Specified Temperature Range:
    –40°C to +105°C
  • APPLICATIONS
    • Shunt Based Current Sensing in:
      • Motor Control
      • Uninterruptible Power Supplies
      • Power Inverters
      • Industrial Process Control

All other trademarks are the property of their respective owners

The AMC1203 is a 1-bit, 10MHz, isolated delta-sigma (ΔΣ) modulator with an output buffer separated from the input interface circuitry by a silicon dioxide (SiO2) isolation barrier. This barrier provides galvanic isolation of up to 4000VPEAK. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry.

The AMC1203 modulator operates from a +5V supply with a dynamic range of 95dB. The differential inputs are ideal for direct connection to shunt resistors or other low-level signal sources. With the appropriate digital filter and modulator rate, the device can be used to achieve 16-bit analog-to-digital (A/D) conversion with no missing codes. An effective resolution of 14 bits and an SNR of 85dB (typical) can be maintained with a sinc3 filter with a decimation ratio of 256.

The modulator output is translated to a balanced signal and then transferred by the capacitive isolation barrier. Across the isolation barrier, a differential comparator receives the logic transition information, and then sets or resets a flip-flop and the output circuit accordingly.

The AMC1203 is available in SOP-8 gull-wing, SOP-8, and SOIC-16 packages. The AMC1203 is characterized for operation over the ambient temperature range of –40°C to +105°C.

The AMC1203 is a 1-bit, 10MHz, isolated delta-sigma (ΔΣ) modulator with an output buffer separated from the input interface circuitry by a silicon dioxide (SiO2) isolation barrier. This barrier provides galvanic isolation of up to 4000VPEAK. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry.

The AMC1203 modulator operates from a +5V supply with a dynamic range of 95dB. The differential inputs are ideal for direct connection to shunt resistors or other low-level signal sources. With the appropriate digital filter and modulator rate, the device can be used to achieve 16-bit analog-to-digital (A/D) conversion with no missing codes. An effective resolution of 14 bits and an SNR of 85dB (typical) can be maintained with a sinc3 filter with a decimation ratio of 256.

The modulator output is translated to a balanced signal and then transferred by the capacitive isolation barrier. Across the isolation barrier, a differential comparator receives the logic transition information, and then sets or resets a flip-flop and the output circuit accordingly.

The AMC1203 is available in SOP-8 gull-wing, SOP-8, and SOIC-16 packages. The AMC1203 is characterized for operation over the ambient temperature range of –40°C to +105°C.

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Technical documentation

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Type Title Date
* Data sheet 1-Bit, 10MHz, 2nd-Order, Isolated Delta-Sigma Modulator datasheet (Rev. C) 10 Jun 2011
Certificate VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. W) 31 Jan 2024
Application brief Shunt Resistor Selection for Isolated Data Converters PDF | HTML 04 May 2023
Certificate UL Certificate of Compliance File E181974 Vol 4 Sec 1 (Rev. A) 05 Aug 2022
White paper Comparing isolated amplifiers and isolated modulators (Rev. A) 28 Feb 2019
Certificate CSA Certification (Certificate: 220991) (Rev. A) 23 Oct 2015
EVM User's guide AMC1203EVM User's Guide 06 Aug 2010

Design & development

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

Evaluation board

AMC1203EVM — AMC1203 evaluation module for 1-bit, 10-MHz, second-order, isolated delta-sigma modulator

The AMC1203 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. The AMC1203EVM is a small form factor board containing all the necessary (...)

User guide: PDF
Not available on TI.com
Evaluation board

AMC1204EVM — AMC1204 evaluation module for 1-bit, 20-MHz, second-order, isolated delta-sigma modulator

The AMC1204 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. The AMC1204EVM is a small form factor board containing all the necessary (...)

User guide: PDF
Not available on TI.com
Evaluation board

AMC1210MB-EVM — AMC1210 motherboard evaluation module

The AMC1210MB-EVM is a complete evaluation kit for the AMC1210 & ADS1205 in resolver applications and part of a modular evaluation system for evaluating TI delta-sigma modulators. The AMC1210MB-EVM software allows use of the AMC1210 in a variety of configurations for resolver and current shunt (...)

User guide: PDF
Simulation model

AMC1203 IBIS Model

SLOM167.ZIP (20 KB) - IBIS Model
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
Reference designs

TIDA-RESOLVER-APPLICATIONS-REFERENCE-DESIGN — Motherboard/controller for the AMC1210

This is a reference design for resolver applications and part of a modular system for evaluating our delta-sigma modulators. The software included allows use of the AMC1210 in a variety of configurations for resolver and current-shunt applications and features a data-export utility to support data (...)
Test report: PDF
Schematic: PDF
Package Pins Download
SOIC (DW) 16 View options
SOP (DUB) 8 View options
SOP (PSA) 8 View options

Ordering & quality

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  • MSL rating/Peak reflow
  • MTBF/FIT estimates
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  • Qualification summary
  • Ongoing reliability monitoring

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