ACPL-7970 Optically Iso Sigma-Delta Modulators

Broadcom ACPL-7970 Optically Isolated Sigma-Delta Modulators are 1-bit, second-order sigma-delta (Σ-Δ) modulators that convert an analog input signal into a high-speed data stream with galvanic isolation based on optical coupling technology. Broadcom ACPL-7970 Optically Isolated Sigma-Delta Modulators operate from a 5V power supply with a dynamic range of 78dB with an appropriate digital filter. The differential inputs of ±200mV (full scale ±320mV) are ideal for direct connection to shunt resistors or other low-level signal sources in applications such as motor phase current measurement.