ADAU1978WBCPZ

The ADAU1978WBCPZ from Analog Devices is a quad analog-to-digital converter (ADC) designed for high-performance audio and automotive applications. It features four 2 V rms differential inputs with a 24-bit sigma-delta architecture and a continuous time front end for low electromagnetic interference. The on-chip phase-locked loop (PLL) generates the master clock, reducing external component count. Key specifications include 109 dB dynamic range, -95 dB THD+N, and support for sampling rates from 8 kHz to 192 kHz. The device operates from a single 3.3V supply and includes a selectable digital high-pass filter and software-controllable clickless mute. It communicates via I2C or SPI interfaces and supports master/slave modes. Housed in a 40-lead LFCSP package (6x6mm), the ADAU1978 is qualified for automotive environments with an operating temperature range of -40°C to 105°C. The part is RoHS3 compliant (unverified) and has MSL level 1.