Product details

Input range (Vp-p) 250mV Interface type Serial Sample rate (Max) (MSPS) 0.04 Rating Catalog Isolation (kV peak) 4 CMTI (Min) (kV/µs) 15 Number of input channels 1 Architecture Delta-Sigma SNR (dB) 85 Operating temperature range (C) -40 to 105 INL (Max) (+/-LSB) 6 Power consumption (Typ) (mW) 80
Input range (Vp-p) 250mV Interface type Serial Sample rate (Max) (MSPS) 0.04 Rating Catalog Isolation (kV peak) 4 CMTI (Min) (kV/µs) 15 Number of input channels 1 Architecture Delta-Sigma SNR (dB) 85 Operating temperature range (C) -40 to 105 INL (Max) (+/-LSB) 6 Power consumption (Typ) (mW) 80
SOIC (DW) 16 SOP (DUB) 8 99 mm² 9.5 x 10.4 SOP (PSA) 8 42 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.

Download

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 13
Type Title Date
* Data sheet 1-Bit, 10MHz, 2nd-Order, Isolated Delta-Sigma Modulator datasheet (Rev. C) 10 Jun 2011
White paper Best in Class Radiated Emissions EMI Perf. with AMC1300B-Q1 Isolated Amplifier 29 Jun 2020
White paper Comparing isolated amplifiers and isolated modulators (Rev. A) 28 Feb 2019
Certificate UL Certification (File: E181974 Project: 478705069) (Rev. C) 11 Jun 2018
Application note Digital Filter Types in Delta-Sigma ADCs 27 Jun 2017
User guide AMC1210MB-EVM User's Guide (Rev. A) 04 Feb 2016
Certificate CSA Certification (Certificate: 220991) (Rev. A) 23 Oct 2015
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
User guide AMC1204EVM User Guide (Rev. A) 04 Sep 2013
User guide AMC1203EVM User's Guide 06 Aug 2010
User guide AMC1204EVM User 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 (...)

In stock
Limit: 3
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 (...)

In stock
Limit: 1
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 (...)

Simulation model

AMC1203 IBIS Model

SLOM167.ZIP (20 KB) - IBIS Model
Calculation tool

Delta Sigma Modulator Filter Calculator

SBAR010.ZIP (3354 KB)
参考设计

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 (...)
Package Pins Download
SOIC (DW) 16 View options
SOP (DUB) 8 View options
SOP (PSA) 8 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos