AMC3330-Q1

• AEC-Q100 qualified for automotive applications:
  • Temperature grade 1: –40°C to 125°C, T_A
• 3.3-V or 5-V single supply operation with integrated DC/DC converter
• ±1-V input voltage range optimized for voltage measurements with high input impedance
• Fixed gain: 2.0
• Low DC errors:
  • Gain error: ±0.2% (max)
  • Gain drift: ±45 ppm/°C (max)
  • Offset error: ±0.3 mV (max)
  • Offset drift: ±4 µV/°C (max)
  • Nonlinearity: ±0.02% (max)
• High CMTI: 85 kV/µs (min)
• System-level diagnostic features
• Safety-related certifications:
  • 6000-V_PK reinforced isolation per DIN VDE V 0884-11 (VDE V 0884-11): 2017-01
  • 4250-V_RMS isolation for 1 minute per UL1577
• Meets CISPR-11 and CISPR-25 EMI standards

The AMC3330-Q1 is a precision, isolated amplifier with a fully integrated, isolated DC/DC converter that allows single-supply operation from the low-side of the device. The reinforced capacitive isolation barrier is certified according to VDE V 0884-11 and UL1577 and separates sections of the system that operate on different common-mode voltage levels and protects low-voltage domains from damage.

The input of the AMC3330-Q1 is optimized for direct connection to high-impedance, voltage-signal sources such as a resistor-divider network to sense high-voltage signals. The integrated isolated DC/DC converter allows measurement of non-ground-referenced signals and makes the device a unique solution for noisy, space-constrained applications.

The excellent performance of the device supports accurate voltage monitoring and control. The integrated DC/DC converter fault-detection and diagnostic output pin of the AMC3330-Q1 simplify system-level design and diagnostics.

The AMC3330-Q1 is specified over the temperature range of –40°C to +125°C.