Voltage level translator offers autonomous bidirectional operation

Direction-free operation for networks and servers is offered with the latest low voltage level translators from Diodes.

The PI4GTL2002 offers simple and autonomous bidirectional operation. The 2-bit level shifter is designed to translate signals conditioned for one voltage level to signals at a higher or lower voltage, such as gunner transceiver logic (GTL) or GTL+ to LVTTL/TTL. GTL+ interfaces in processors is driving the need for high performance level translators in applications such as server or data centres and networking. The PI4GTL2002 meets that demand with the added benefit of not imposing the need for directional control, says Diodes.

The open-drain design of the PI4GTL2002 means the device can translate voltage levels in either direction without incurring the design complexity or performance penalty of a dedicated direction control signal. The device operates in either direction, shifting between 0.8V and 5.0V (CMOS), with less than 1.5 nano second propagation delay between inputs and outputs. The PI4GTL2002 can therefore support a number of use cases, including standard and fast mode I2C.

The translator’s NMOS-based pass transistors use a common gate to enable bidirectional operation, with reference voltages for each of the two signals. This enables a different voltage to be applied to either side of the device, allowing voltage translation between signals ranging from 0.8V to 5.0V.

The pin-out of the PI4GTL2002 follows a convenient flow-through design for ease of PCB layout. A low input and output capacitance keeps the propagation delay low, while the device also features an on-resistance of just 3.5Ohm to minimise signal distortion.

The PI4GTL2002UEX is available in the U-QFN package, the PI4GTL2002 is also available in the W-QFN package (PI4GTL2002WEX) and the XT-QFN (PI4GTL2002XTEX) package.

Diodes manufactures and supplies application specific standard products within the broad discrete, logic, analogue and mixed-signal semiconductor markets. Diodes serves the consumer electronics, computing, communications, industrial, and automotive markets with a broad range of products that include diodes, rectifiers, transistors, MOSFETs, protection devices, function-specific arrays, single gate logic, amplifiers and comparators, Hall-effect and temperature sensors, power management devices, including LED drivers, AC/DC converters and controllers, DC/DC switching and linear voltage regulators and voltage references along with special function devices, such as USB power switches, load switches, voltage supervisors, and motor controllers. Diodes also has timing, connectivity, switching, and signal integrity solutions for high-speed signals.


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