MAXIM MAX333A Precision Quad SPDT CMOS Analog Switch handbook
Datasheet
MAX333A is a precision, quad, single-pole double-throw (SPDT) analog switch from Maxim that offers low on resistance, low power consumption, high voltage range, and high isolation, making it suitable for a wide range of applications including test equipment, communications systems, PBX, PABX, heads-up displays, and portable instruments.