The LTC221 and LTC222 are micropower, quad CMOS analog switches which typically dissipate only 250W from 15V supplies and 40W from a single 5V supply. Onboard latches allow the LTC221 and LTC222 to interface directly to most microprocessor buses. The switches have 65 typical on resistance and a very high off resistance. A break before make characteristic is inherent in these switches to prevent the shorting of two channels. The signal range is 15V with a supply voltage of 15V and 0V to 5V with a single 5V supply. The switches have special charge compensation circuitry which greatly reduces charge injection to a maximum of 25pC (15V supplies).