ACPL-798J

ACPL-798J Optically Isolated Sigma-Delta Modulator with LVDS Interface Data Sheet Lead (Pb) Free RoHS 6 fully compliant RoHS 6 fully compliant options available; -xxxE denotes a lead-free product Description The ACPL-798J is a 1-bit, second-order sigma-delta (Σ-∆) modulator that oversamples an analog input signal into a highspeed data stream with galvanic isolation based on optical coupling technology. The ACPL-798J operates from a 5 V power supply with dynamic range of 82 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 means of sigma-delta over-sampling using external clock, coupled across the isolation barrier, which allows synchronous operation with any digital controller. The signal information is contained in the modulator data, as a density of ...