The ADG3249 is a 2.5 V or 3.3 V, high performance 2:1 multiplexer/demultiplexerBus switch, manufactured on a low-voltage CMOS process, with low power consumption, high switching speed and very low on-resistance. The input can be connected to the output without causing additional propagation delay or additional ground bounce noise. When turned on, each switch of the ADG3249 conducts the same in both directions. The device is open-before-close to prevent transient short circuits when switching channels.
This device is ideal for requirementsLevel shiftingApplication . When operating from a 3.3 V supply, a 3.3 V input level can be converted to a 2.5 V output level. Similarly, if the device operates from a 2.5 V supply and a 2.5 V input is applied, the device converts to a 1.8 V output. In addition, the device contains a level shifting pin (
) 。 whileWhen low, VCCInternal reduction allows the 3.3 V input level to be converted to a 1.8 V output level.
The AD3249 is available in a small 8-lead SOT-23 package.