ADG3304 Bidirectional Logic-Level Translators Analog Devices Inc. ADG3304 Logic-Level Translators include four bidirectional channels and are fully guaranteed over the 1.15V to 5.5V supply range. ADG3304's internal architecture enables the devices to perform bidirectional logic-level translation without requiring an additional signal to set the direction in which the translation takes place. The enable pin offers a three-state operation on the A-side and the Y-side pins. Both sides of the device operate in a high impedance state when the EN pin is pulled low.