AMC1300BDWVR

±250mV input voltage range, optimized for current measurement using shunt resistors. Fixed gain: 8.2. The AMC1300 is an isolated precision amplifier. The output and input circuits of the amplifier are separated by an isolation barrier with extremely strong anti-electromagnetic interference performance. According to the VDE V 0884-11 and UL1577 standards, this isolation barrier is certified to provide enhanced electrical isolation of up to 5kVRMS. When used in conjunction with an isolated power supply, this isolation amplifier can isolate devices in systems operating at different common-mode voltage levels and prevent damage to low-voltage devices. The input of the AMC1300 is optimized for direct connection to shunt resistors or other low-voltage level signal sources. The excellent performance of this device enables precise current control, thereby reducing system-level power consumption. Especially for motor control applications, it can reduce torque ripple. The integrated common-mode overvoltage and high-side supply voltage detection functions of the AMC1300 simplify system-level design and diagnosis. The AMC1300 offers two performance level options: AMC1300B and AMC1300. Their rated extended industrial temperature ranges are –55°C to +125°C and –40°C to +125°C respectively.

Applications

• Shunt resistor-based current sensing
• Motor drivers
• Inverters
• Uninterruptible power supplies

Key features

• ±250mV input voltage range, optimized for current measurement using shunt resistors
• Fixed gain: 8.2
• Low DC error
• AMC1300B: Offset voltage error: ±0.2mV (max), temperature drift: ±0.9μV/°C (max), gain error: ±0.3% (max), gain drift: ±30ppm/°C (max)
• AMC1300: Offset voltage error: ±2mV (max), temperature drift: ±4μV/°C (max), gain error: ±1% (max), gain drift: ±50ppm/°C (typ)
• Nonlinearity: 0.03% (max)
• High-side 3.3V operating voltage (AMC1300B)
• High CMTI: 100kV/μs (min) (AMC1300B)
• Low EMI, compliant with CISPR-11 and CISPR-25
• System-level diagnostic capability
• Safety-related certifications: ±7071-VPK reinforced isolation per DIN VDE V0884-11:2017-01, 5000VRMS isolation for 1 minute per UL1577