1 Features
• ±250-mV input voltage range optimized for current
measurement using shunt resistors
• Fixed gain: 8.2
• Low DC errors:
– AMC1300B:
• Offset error: ±0.2 mV (maximum)
• Offset drift: ±0.9 μV/°C (maximum)
• Gain error: ±0.3% (maximum)
• Gain drift: ±30 ppm/°C (maximum)
– AMC1300:
• Offset error: ±2 mV (maximum)
• Offset drift: ±4 μV/°C (maximum)
• Gain error: ±1% (maximum)
• Gain drift: ±50 ppm/°C (typical)
– Nonlinearity: 0.03% (maximum)
• 3.3-V operation on high-side (AMC1300B)
• High CMTI: 100 kV/μs (minimum) (AMC1300B)
• Low EMI, meets CISPR-11 and CISPR-25
standards
• System-level diagnostic features
• Safety-related certifications:
– 7071-VPK reinforced isolation per DIN VDE V
0884-11: 2017-01
– 5000-VRMS isolation for 1 minute per UL1577

2 Applications
• Shunt-resistor-based current sensing in:
– Motor drives
– Frequency inverters
– Uninterruptible power supplies

3 Description
The AMC1300 is a precision, isolated amplifier
with an output separated from the input circuitry
by an isolation barrier that is highly resistant to
magnetic interference. This barrier is certified to
provide reinforced galvanic isolation of up to 5 kVRMS
according to VDE V 0884-11 and UL1577. Used
in conjunction with isolated power supplies, this
isolated amplifier separates parts of the system that
operate on different common-mode voltage levels and
protects lower-voltage parts from damage.
The input of the AMC1300 is optimized for direct
connection to shunt resistors or other low voltagelevel
signal sources. The excellent performance of
the device supports accurate current control resulting
in system-level power savings and, especially in
motor control applications, lower torque ripple. The
integrated common-mode overvoltage and missing
high-side supply voltage detection features of
the AMC1300 simplify system-level design and
diagnostics.
The AMC1300 is offered with two performance
grade options: the AMC1300B is specified over the
extended industrial temperature range of –55°C to
+125°C, and the AMC1300 for operation at –40°C to
+125°C.