Texas Instruments AMC1300/AMC1300-Q1 Precision Isolated Amplifiers

Texas Instruments AMC1300/AMC1300-Q1 Precision Isolated Amplifiers come with an output separated from the input circuitry by an isolation barrier highly resistant to magnetic interference. This barrier is certified to provide reinforced galvanic isolation of up to 5kVRMS 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.

Features

  • ±250mV Input voltage range optimized for current measurement using shunt resistors
  • Low offset error and drift
    • AMC1300B: ±0.2mV (max), ±3µV/°C (max)
    • AMC1300: ±2mV (max), ±4µV/°C (max)
  • 8.2 Fixed gain
  • Very low gain error and drift
    • AMC1300B: ±0.3% (max), ±50ppm/°C (max)
    • AMC1300: ±1% (max), ±50ppm/°C (typ)
  • 0.03%, 1ppm/°C (typ) Low nonlinearity and drift
  • 3.3V Operation on high-side (AMC1300B)
  • System-level diagnostic features
  • Safety-related certifications
    • 7071VPK Reinforced Isolation per DIN V VDE V 0884-11: 2017-01
    • 5000VRMS Isolation for 1 minute per UL1577
  • 140kV/µs (typ) High CMTI on AMC1300B

Applications

  • Shunt-resistor-based current sensing in
    • Motordrives
    • Frequency inverters
    • Uninterruptible power supplies

Videos

Functional Block Diagram

Block Diagram - Texas Instruments AMC1300/AMC1300-Q1 Precision Isolated Amplifiers
Publicado: 2018-07-03 | Actualizado: 2025-03-26