AMC1300B-Q1

• AEC-Q100 qualified for automotive applications:
  • Temperature grade 1: –40°C to 125°C, T_A
• ±250-mV input voltage range optimized for current measurements using shunt resistors
• Fixed gain: 8.2
• Low DC errors:
  • Offset error: ±0.2 mV (max)
  • Offset drift: ±0.9 µV/°C (max)
  • Gain error: ±0.3% (max)
  • Gain drift: ±30 ppm/°C (max)
  • Nonlinearity: 0.03% (max)
• 3.3-V or 5-V operation on high-side and low-side
• Failsafe output
• High CMTI : 100 kV/µs (min)
• Low EMI, meets CISPR-11 and CISPR-25 standards
• Safety-related certifications:
  • 7071-V_PK reinforced isolation per DIN VDE V 0884-11: 2017-01
  • 5000-V_RMS isolation for 1 minute per UL1577

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The AMC1300B-Q1 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 kV_RMS according to VDE V 0884-11 and UL1577, and supports a working voltage of up to 1.5 kV_RMS.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-voltage side from hazardous voltages and damage.

The input of the AMC1300B-Q1 is optimized for direct connection to a low-impedance shunt resistor or other low-impedance voltage source with low signal levels. The excellent DC accuracy and low temperature drift supports accurate current control in PFC stages, DC/DC converters, traction inverters, and OBCs over the full automotive temperature range from –40°C to +125°C.

The integrated missing-shunt and missing high-side supply detection features simplify system-level design and diagnostics.