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AMC1106M05

AMC1106M05 Series

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

Manufacturer: Texas Instruments

Catalog

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

Key Features

±50-mV input voltage range optimized for current measurement with shunt resistorsManchester coded or uncoded bitstream optionsExcellent 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 barrierSystem-level diagnostic featuresHigh electromagnetic field immunity(see theISO72x Digital Isolator Magnetic-Field Immunityapplication report)Safety-related certifications:5657-VPKbasic isolation per DIN VDE V 0884-11: 2017-014000-VRMSisolation for 1 minute per UL1577CAN/CSA No. 5A-component acceptance service noticeand DIN EN 61010-1 end equipment standard±50-mV input voltage range optimized for current measurement with shunt resistorsManchester coded or uncoded bitstream optionsExcellent 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 barrierSystem-level diagnostic featuresHigh electromagnetic field immunity(see theISO72x Digital Isolator Magnetic-Field Immunityapplication report)Safety-related certifications:5657-VPKbasic isolation per DIN VDE V 0884-11: 2017-014000-VRMSisolation for 1 minute per UL1577CAN/CSA No. 5A-component acceptance service noticeand DIN EN 61010-1 end equipment standard

Description

AI
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. TheMSP430F67x,TMS320F2807x, andTMS320F2837xmicrocontrollers, and theAMC1210integrate these digital filters for seamless operation with the AMC1106. On the high-side, the modulator is supplied by a3.3-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. 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. TheMSP430F67x,TMS320F2807x, andTMS320F2837xmicrocontrollers, and theAMC1210integrate these digital filters for seamless operation with the AMC1106. On the high-side, the modulator is supplied by a3.3-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.