ACPL-C799 Modulator

ACPL-C799 Modulator

Broadcom's 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 5 V 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.

Features
  • 10 MHz internal clock
  • 1-bit, second-order sigma-delta modulator
  • 16-bits resolution no missing codes (12-bits ENOB)
  • 77 dB SNR typ
  • 1.3 μV/°C maximum offset drift
  • ±1% gain error
  • Internal reference voltage
  • ±50 mV linear range with single 5 V supply (±80 mV full scale)
  • 3 V to 5.5 V wide supply range for digital interface
  • -40°C to +105°C operating temperature range
  • SSO-8 package
  • 25 kVμs common-mode transient immunity
  • Safety and regulatory approval:
    • IEC/EN/DIN EN 60747-5-5: 1414 VPEAK working insulation voltage
    • UL 1577: 5000 VRMS/1min isolation voltage
    • CSA: component acceptance notice #5
Applications
  • Servo drives and motors
  • Motor phase and rail current sensing
  • Power inverter current sensing
  • Industrial process control
  • Data acquisition systems
  • General purpose current sensing
  • Traditional current transducer replacements

New Products:

ACPL-C799-500E
Manufacturer