The Broadcom® ACPL-C740 is a 1-bit, second-order sigmadelta (-) modulator that converts an analog input signal into a high-speed data stream with galvanic isolation based on optical coupling technology.
Key Features
Superior optical isolation and insulation.
20-MHz internal clock.
1-bit, second-order sigma-delta modulator.
16 bits resolution no missing codes (12 bits ENOB).
86 dB SNR.
1 µV/°C maximum offset drift.
±1% gain error.
Internal reference voltage.
±200-mV linear range with single 5V supply (±320 mV
full scale).
3V to 5.5V wide supply range for digital interface.
Single-Channel and Dual-Channel High-Speed 15-MBd CMOS Optocoupler
Full PDF Text Transcription for ACPL-C740 (Reference)
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ACPL-C740. For precise diagrams, tables, and layout, please refer to the original PDF.
ACPL-C740 Optically Isolated Sigma-Delta Modulator Data Sheet Description The Broadcom® ACPL-C740 is a 1-bit, second-order sigmadelta (-) modulator that converts an ana...
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a 1-bit, second-order sigmadelta (-) modulator that converts an analog input signal into a high-speed data stream with galvanic isolation based on optical coupling technology. The ACPL-C740 operates from a 5V power supply with dynamic range of 86 dB with an appropriate digital filter. The differential inputs of ±200 mV (full scale ±320 mV) are ideal for direct connection to shunt resistors or other low-level signal sources in applications, such as motor phase current measurement. The analog input is continuously sampled by a means of sigma-delta over-sampling using an onboard clock.
ACPL-C740 Datasheet
