ACPL-C799 Datasheet | Broadcom

Description The Avago Technologies’ ACPL-C799 is a 1-bit, second-order sigma-delta (-) modulator 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 d B with an appropriate digital filter. The differential inputs of ±50 m V (full scale ±80 m V) 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 on-board clock. The signal information is contained in the modulator data, as a density of ones with data rate of 10 MHz, and the data are encoded and transmitted across the isolation boundary where they are recovered and decoded into high-speed data stream of digital ones and zeros. The original signal information can be reconstructed with a digital filter. The serial...