Vishay Intertechnology, Inc. 85OHM Analog Switch and Multiplexer IC DG485DJ

The DG485DJ is an octal analog switch array featuring eight single-pole, single-throw (SPST) switches that can be controlled via a serial interface. It is designed for applications such as audio switching, data acquisition, and process control. The device operates with a wide power supply voltage range of up to 44 V and has a low on-resistance of 55 ohms, which contributes to minimal signal distortion. The DG485DJ supports fast switching speeds with a typical turn-on time of 170 ns, making it suitable for high-speed applications. It allows for daisy chaining of multiple arrays, facilitating system expansion. The device is TTL and CMOS compatible, ensuring easy integration into various digital systems. It operates over a temperature range of -40 to 85¬8C and is available in an 18-pin plastic DIP package. Engineers considering the DG485DJ should note its low power dissipation of 35 nW, making it ideal for battery-powered remote systems. The device's ability to block rail-to-rail voltages when off enhances its versatility in different circuit configurations.