The AMC1301 is a precision, reinforced isolated amplifier optimized for shunt-resistor-based current measurements in motor drives, frequency inverters, uninterruptible power supplies (UPS), and other high-voltage applications. With a ±250-mV input voltage range and fixed gain of 8.2 V/V, this amplifier delivers exceptional DC accuracy, low offset, minimal gain error, and high linearity, ensuring reliable and precise current sensing. Its reinforced isolation barrier provides up to 7070 VPEAK protection according to DIN EN IEC 60747-17 (VDE 0884-17) and 5000 VRMS per UL1577 standards, making it ideal for applications requiring operator safety and system protection. Operating from 3.3 V on both high-side and low-side circuits, the AMC1301 also includes system-level diagnostics, common-mode overvoltage detection, and missing high-side supply detection to simplify design and enhance reliability. Fully specified for industrial temperature ranges of –40°C to +125°C, the AMC1301 comes in an 8-pin SOIC (DWV) package, with the AMC1301S variant rated for –55°C to +125°C.

Features:

• ±250-mV input voltage range for shunt resistor measurements
• Fixed gain: 8.2 V/V
• Low DC errors: offset ±0.2 mV max, offset drift ±3 μV/°C max, gain error ±0.3% max, gain drift ±50 ppm/°C max, nonlinearity 0.03% max
• 3.3-V operation on high-side and low-side
• System-level diagnostics and protection
• Reinforced isolation: 7070-VPEAK per DIN EN IEC 60747-17 (VDE 0884-17)
• 5000-VRMS isolation per UL1577
• Fully specified industrial temperature range –40°C to +125°C
• Wide-body 8-pin SOIC (DWV) package

Specifications:

• Input Voltage Range: ±250 mV
• Gain: 8.2 V/V fixed
• Offset Error: ±0.2 mV max
• Offset Drift: ±3 μV/°C max
• Gain Error: ±0.3% max
• Gain Drift: ±50 ppm/°C max
• Nonlinearity: 0.03% max
• Supply Voltage: 3.3 V high-side and low-side
• Isolation Voltage: 7070 VPEAK reinforced, 5000 VRMS for 1 min
• Operating Temperature: –40°C to +125°C (AMC1301), –55°C to +125°C (AMC1301S)
• Package: 8-pin SOIC (DWV)

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