A guide to voltage translation with TXS-type translators

Modern trends are driving the need for lower supply voltages across many system-level designs. As most processor voltage levels continue to decrease in the interest of achieving the lowest possible power consumption, peripheral devices maintain a need for higher voltage levels, creating potential for voltage discontinuities within a system. To remedy this mixed voltage system incompatibility, a voltage translator can be used.

The TXS translators offer system designers a good solution to remedy mixed-voltage system incompatibilities when interfacing with open-drain drivers in applications such as I²C. These translators eliminate the need for provisioning a GPIO of a processor, since they change the direction of the data flow automatically without the use of a direction control pin. This can simplify software driver development and allows for solutions in smaller packages because of this direction control pin savings.

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