AD7779 24-Bit Simultaneous Sampling ADCs

Analog Devices AD7779 includes 8-channel 24-bit simultaneous sampling ADCs designed to ensure that circuit breaker equipment powers up quickly in smart grid systems. The devices feature eight full sigma-delta (Σ-Δ) ADCs on the chip. The eight simultaneous sampling channels measure the output from current and voltage sensors in three-phase power applications. Each input channel includes a programmable gain stage enabling 1, 2, 4, and 8 gains to map lower amplitude sensor outputs in the full-scale ADC input range. This design maximizes the dynamic range of the signal chain.