AMC1100DWVR

The AMC1100 is a precision isolation amplifier with an output separated from the input circuit by a silicon dioxide (SiO2) barrier that provides high resistance to magnetic interference. The barrier is certified per DIN VDE V 0884-11: 2017-01 and UL1577, providing galvanic isolation up to 4250 VPEAK. When used with an isolated power supply, the device prevents noise currents on high common-mode voltage lines from entering the local ground and interfering with or damaging sensitive circuitry. The AMC1100 input is optimized for direct connection to shunt resistors or other low-voltage-level signal sources. The device's outstanding performance enables precise measurement of current and voltage in energy metering applications. The output signal common-mode voltage is automatically adjusted to a 3-V or 5-V low-side supply. The AMC1100 is fully specified over an extended industrial temperature range of -40°C to +105°C, and is available in SMD-type, wide-body SOIC-8 (DWV) and Gull-Wing-8 (DUB) packages.

Applications

• Electricity meters
• String inverters
• Power measurement applications

Key features

• Optimized ±250 mV input voltage range for shunt resistors
• Very low nonlinearity: 0.075% maximum (at 5 V)
• Low offset error: 1.5 mV maximum
• Low noise: 3.1 mVRMS typical
• Low-side supply current: 8 mA maximum (at 5 V)
• Input bandwidth: 60 kHz minimum
• Fixed gain: 8 (0.5% accuracy)
• High CMRR: 108 dB
• Low-side operation: 3.3 V
• Safety-related certifications: Basic isolation 4250-VPK per DIN VDE V 0884-11: 2017-01, 3005-VFMS isolation 1-minute per UL1577, CAN/CSA Component Acceptance Service Notice Part 5A, and DIN EN 61010-1
• Working voltage: 1200 VPEAK
• Transient immunity: 2.5 kV/μs minimum
• Fully specified over extended industrial temperature range