ADG3249

Features:

225 ps Propagation Delay through the Switch
Data Rate 1.244 Gbps
2.5 V/3.3 V Supply Operation
Selectable Level Shifting/Translation
Level Translation
  3.3 V to 2.5 V
  3.3 V to 1.8 V
  2.5 V to 1.8 V
Small Signal Bandwidth 610 MHz
8-Lead SOT-23 Package


Application

3.3 V to 1.8 V Voltage Translation
3.3 V to 2.5 V Voltage Translation
2.5 V to 1.8 V Voltage Translation
Docking Stations
Memory Switching
Analog Switch Applications


Pinout




Specifications

V_CC to GND  . . . . . . . . . . . . . . . . . . . . . . . . .  0.5 V to +4.6 V
Digital Inputs to GND  . . . . . . . . . . . . . . . . .   0.5 V to +4.6 V
DC Input Voltage  . . . . . . . . . . . . . . . . . . . . . 0.5 V to +4.6 V
DC Output Current  . . . . . . . . . . . . . . . . .  25 mA per Channel
Operating Temperature Range
  Industrial (B Version)  . . . . . . . . . . . . . . . . . 40°C to +85°C
Storage Temperature Range  . . . . . . . . . . . 65°C to +150°C
Junction Temperature  . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Lead Temperature, Soldering (10 sec)  . . . . . . . . . . . . 300°C
IR Reflow, Peak Temperature (<20 sec)  . . . . . . . . . . . 235°C


Description

The ADG3249 is a 2.5 V or 3.3 V, high performance 2:1 multiplexer/demultiplexer bus switch. It is designed on a low voltage CMOS process, which provides low power dissipation yet gives high switching speed and very low on resistance. This allows the input to be connected to the output without additional propagation delay or generating additional ground bounce noise. Each switch of the ADG3249 conducts equally well in both directions when on. It exhibits break-before-make switching action, preventing momentary shorting when switching channels.

ADG3249 is ideal for applications requiring level translation.When operated from a 3.3 V supply, level translation from 3.3 V inputs to 2.5 V outputs is allowed. Similarly, if the device is operated from 2.5 V supply and 2.5 V inputs are applied, the device will translate the outputs to 1.8 V.