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Resistor Networks, Arrays

The CAT16-303J4LF is a 9-pin Resistor Network/Array device that makes use of eight high-accuracy resistor elements to create a software adjustable divider or sub-circuit. The CAT16-303J4LF is commonly used in the design of amplifiers, active filters, current sensors, level shifters, and various other applications.

Application Field

The CAT16-303J4LF can be used in a wide range of applications as a either a voltage divider or a current divider. Thanks to its high accuracy and its ability to create proper multilayer resistor networks, it is often used for calibration and to set temperature reference or other voltage or current fixed/variable references. Furthermore, it is regularly used to balance multiple inputs, maintain inputs at specific references, and set bias points for components that require one.

The CAT16-303J4LF has highly precise resistor elements which allows it to create precise voltage dividers, with little to no voltage variations because of temperature changes, making the device suitable for applications in all kinds of environments. This makes it suitable for use in automotive designs and other applications that require high accuracy in a wide temperature range.

Working principle

The CAT16-303J4LF works by combining the 8 resistor elements, connected in a series or parallel arrangement, and using the configuration that best suits the application requirements. This combined resistor network is software adjustable, allowing the user to quickly and precisely set the resistor elements for the required voltage divider ratio.

The CAT16-303J4LF also features a built-in chip resistors which can be used as a separate current divider or as part of the configuration of the overall resistor network. The integrated chip resistors also provide a degree of thermal tracking, greatly increasing the accuracy of the device.

The CAT16-303J4LF can be configured as a voltage divider by connecting the middle-pin with one end of the resistor elements and connecting the opposing end with an external voltage source. This connection allows for a software adjustable voltage divider for creating a wide range of voltage references.

The CAT16-303J4LF can also be used as a current divider in a similar way. By connecting the end-pin to a voltage source, such as the ground, and the middle-pin to a current source, the device can be used to provide precise current dividers for current sensing applications.

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