AMC1106E05

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Small Basic Isolated Delta-Sigma Modulator With ±50mV Input and Manchester-Encoded CMOS Interface

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Product details

Parameters

Input range (Vp-p) 50mV Interface type Serial CMOS Sample rate (Max) (MSPS) 21 Rating Catalog Isolation (kV peak) 5.657 CMTI (Min) (kV/µs) 15 Number of input channels 1 Architecture Delta-Sigma SNR (dB) 82.5 Operating temperature range (C) -40 to 125 INL (Max) (+/-LSB) 4 Power consumption (Typ) (mW) 45 open-in-new Find other Isolated ADCs

Package | Pins | Size

SOIC (DWV) 8 67 mm² 5.85 x 11.5 open-in-new Find other Isolated ADCs

Features

  • ±50-mV input voltage range optimized for current measurement with shunt resistors
  • Manchester coded or uncoded bitstream options
  • Excellent DC performance for high-precision sensing on system level:
    • Offset error and drift: ±50 µV, ±1 µV/°C (max)
    • Gain error and drift: ±0.2%, ±40 ppm/°C (max)
  • 3.3-V operation for reduced power dissipation on both sides of the isolation barrier
  • System-level diagnostic features
  • High electromagnetic field immunity
    (see the ISO72x Digital Isolator Magnetic-Field Immunity application report)
  • Safety-related certifications:
    • 5657-VPK basic isolation per DIN VDE V 0884-11: 2017-01
    • 4000-VRMS isolation for 1 minute per UL1577
    • CAN/CSA No. 5A-component acceptance service notice
      and DIN EN 61010-1 end equipment standard
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Description

The AMC1106 is a precision, delta-sigma (ΔΣ) modulator with the output separated from the input circuitry by a capacitive isolation barrier that is highly resistant to magnetic interference.

The input stage of the AMC1106 is optimized for direct connection to shunt resistors or other low voltage-level signal sources commonly used in multi-phase electricity meters to achieve excellent ac and dc performance. The device low input voltage range of ±50-mV allows use of small shunt resistor values to minimize power dissipation. Decimate the output bitstream of the AMC1106 with an appropriate digital filter. The MSP430F67x, TMS320F2807x, and TMS320F2837x microcontrollers, and the AMC1210 integrate these digital filters for seamless operation with the AMC1106.

On the high-side, the modulator is supplied by a
3.3-V or 5-V power supply (AVDD). The isolated digital interface operates from a 3.0-V, 3.3-V, or 5-V power supply (DVDD).

The AMC1106 is specified over the extended industrial temperature range of –40°C to +125°C.

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Technical documentation

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Type Title Date
* Data sheet AMC1106x Small, High-Precision, Basic Isolated Delta-Sigma Modulators datasheet (Rev. B) Apr. 30, 2020
User guide AMC1303, AMC1306, and AMC1336 Evaluation Module User's Guide (Rev. B) Dec. 16, 2019
White paper Comparing isolated amplifiers and isolated modulators (Rev. A) Feb. 28, 2019
Certificate UL Certification (File: E181974 Project: 478705069) (Rev. C) Jun. 11, 2018
Application note Digital Filter Types in Delta-Sigma ADCs Jun. 27, 2017
Technical article Get cerTIfied, not certi-FRIED! Electromagnetic compatibility testing explained (Part 4) Feb. 06, 2015
Technical article Using delta-sigma modulators for isolated high-voltage measurements Jan. 09, 2015
Technical article Part III: Get CerTIfied, not certi-FRIED! Electromagnetic compatibility testing explained Dec. 02, 2014

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
49
Description
The AMC1306 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, AMC1306 (...)
Features
  • Full-featured evaluation board for the AMC1306 single-channel delta-sigma modulators
  • Configurable AVDD and DVDD power supplies
  • Screw terminals for easy access to analog inputs and digital outputs

Design tools & simulation

CALCULATION TOOL Download
SBAR010.ZIP (3354 KB)

CAD/CAE symbols

Package Pins Download
SOIC (DWV) 8 View options

Ordering & quality

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  • Ongoing reliability monitoring

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