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AMC1106M05
  • AMC1106M05
  • AMC1106M05

AMC1106M05

ACTIVE

±50-mV input, precision current sensing basic isolated modulator

Texas Instruments AMC1106M05 Product Info

1 April 2026 4

Parameters

Device type

Current sensing

Peak-to-peak input voltage range (V)

50mV

Interface type

Serial CMOS

Sample rate (max) (Msps)

21

Rating

Catalog

CMTI (min) (kV/µs)

15

Number of input channels

1

Architecture

Delta-Sigma

SNR (dB)

82.5

Operating temperature range (°C)

-40 to 125

Power consumption (typ) (mW)

45

SFDR (dB)

83

Isolation rating

Basic

Withstand isolation voltage (VISO) (Vrms)

4000

Working isolation voltage (VIOWM) (Vrms)

600

Transient isolation voltage (VIOTM) (VPK)

5.657

Creepage (min) (mm)

8.5

Clearance (min) (mm)

8.5

Package

SOIC (DWV)-8-67.275 mm² 5.85 x 11.5

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
  • ±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

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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