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Maxim delivers programmable mixed signal I/O device

18 Jun 2014  | Max Maxfield

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The use cases mentioned above assume that values from any ports configured as analogue or digital inputs are read by the MAX11300's digital control block and passed via the SPI or I2C interface out to the larger system. Similarly, the use cases assume that values from the larger system are passed via the SPI or I2C interface to the digital control block and written to the ports configured as analogue or digital outputs.

In reality, any two PIXI ports can be connected together and used as a uni-directional logic-level translator. The switching threshold of the input may be configured; also, the output can be inverted with respect to the input if required. Alternatively, any two adjacent PIXI ports can be used as a bi-directional logic-level translator. These uni-directional and bi-directional functions are not clocked, so any change on the port acting as an input will be reflected almost immediately on the corresponding port acting as an output.

The MAX11300 is complemented by an intuitive graphical user interface that supports drag-and-drop operation to generate the desired configuration. The output is a *.csv register configuration file that is used to program the PIXI.


PIXI devices are ideal for a wide range of applications including industrial automation (CNC machines, low-end PLCs, 12bit servo loop systems), test and measurement (power supplies, data acquisition systems), and wireless-wired infrastructure (power amplifier biasing and monitoring circuits, tunable laser biasing and monitoring circuit, backplane/rack power management).

If you are interested in evaluating one of these devices, the MAX11300 Pmod board, shown on the right side of the image below, can be used with a Xilinx ZedBoard or any Pmod-compatible board. The MAX11300 Pmod board is only $25.

 MAX11300 Pmod board

Alternatively, the MAX11300 Pmod board can be used in conjunction with an optional Maxim USB2PMB board—shown on the left side of the image above—which is available for $55.

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