The DG1411, DG1412, DG1413 are ± 15 V precision monolithic quad single-pole single-throw (SPST) CMOS analog switches. Built on a new CMOS process, the Vishay Siliconix DG1411, DG1412, and DG1413 offer low on-resistance of 1.5 . The low and flat resistance over the full signal range ensures excellent linearity and low signal distortion. The new CMOS platform provides low power dissipation, minimized parasitic capacitance, and low charge injection. The devices operate from either a single 4.5 V to 24 V power supply, or from dual ± 4.5 V to ± 15 V power supplies. The analog switches don't require a VL logic supply, while all digital inputs have 0.8 V and 2 V logic thresholds to ensure low-voltage TTL / CMOS compatibility. The DG1411, DG1412, and DG1413 are bi-directional and support analog signals up to the supply voltage when on, and block them when off. The devices each feature four independently selectable SPST switches. The DG1411 is normally closed, while the DG1412 is normally open. The DG1413 has two normally open and two normally closed switches with guaranteed break-before-make operation. Combined with fast 100 ns switching times, the improved performance of the DG1411, DG1412, and DG1413 make the devices ideal for signal switching and relay replacement in data acquisition, industrial control and automation, communication, and A/V systems, in addition to medical instrumentation and automated test equipment. The switches are available in RoHS-compliant, halogen-free TSSOP16 and QFN16 4 mm by 4 mm packages.