ACPL-C799

±50mV Optically Isolated Sigma-Delta Modulator

ACPL-C799_wht.jpg
ACPL-C799_wht.jpg

  • 77 dB SNR typ
  • 1.3 μV/°C maximum offset drift
  • 10 MHz internal clock
  • 1-bit, second-order sigma-delta modulator

The ACPL-C799 is a 1-bit, second-order sigma-delta (Σ-Δ) modulator that converts an analog input signal into a high-speed data stream with galvanic isolation based on optical coupling technology.The ACPL-C799 operates from a 5V power supply with dynamic range of 77 dB with an appropriate digital filter. The differential inputs of ±50 mV (full scale ±80 mV) are ideal for direct connection to shunt resistors or other low-level signal sources in applications such as motor phase current measurement.

 

 

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  • ±50 mV linear range with single 5 V supply (±80 mV full scale)
  • 77 dB SNR typ
  • 1.3 μV/°C maximum offset drift
  • 10 MHz internal clock
  • 1-bit, second-order sigma-delta modulator
  • ±1% gain error
  • 25 kV/μs common-mode transient immunity
  • Safety approval UL, CSA and IEC/EN/DIN EN 60747-5-5
  • Motor phase and rail current sensing
  • Power inverter current sensing
  • General purpose current sensing
  • Servo and Motor Drive