The DG2522 is a low on-resistance SP3T analog switch design to operation from 1.6 V to 5.5 V. The DG2522 switches signals in either direction with amplitudes up to V+. Protection circuit is built in to isolate the signals if any of them swings above V+. It guaranteed low leakage level for isolation in power down mode. Built on Vishay Siliconix's sub-micro CMOS technology, the DG2522 achieves switch on-resistance of 0.8 at 4.5 V V+ with 0.6 flatness. It has superior 0.008 % THD (total harmonic distortion) over frequency of 20 Hz to 20 kHz. It provides - 59 dB off-Isolation, - 65 dB crosstalk at 1 MHz, and 105 MHz - 3 dB bandwidth.