CAT16-4991F4LF

Resistor networks and arrays are basic components used in a variety of electronic and electrical engineering applications, such as signal conditioning, switching, and protection. The CAT16-4991F4LF is a resistor array from American Precision Instruments (API) specifically designed for optimum performance in these application areas. This paper will discuss the application fields of the CAT16-4991F4LF resistor array, as well as its working principle.

The CAT16-4991F4LF resistor array is a four channel, low-resistance shunt series of resistors. It is intended for use with high input capacitance devices, such as digital circuits, to help reduce switching noise and line loading. The resistor array has an operating voltage of from -55 V to +125 V and a current rating of 0.45 A. The resistors in the array have a maximum tolerance of 5% and are available in a range of resistance values from 22 Ω to 100 Ω. The CAT16-4991F4LF also has excellent temperature stability, with a temperature coefficient of 0.0038/°C and a temperature drift rating of 0.25%.

The primary application field for the CAT16-4991F4LF resistor array is in digital circuits, where it is used as a shunt series resistor to reduce input capacitance and reduce the possibility of interference and feedback. The resistor array is also well-suited for use in signal conditioning applications, such as A/D and D/A converters, and other switched circuits. In switched circuits, the resistor array helps reduce switching noise when changing circuit states. The resistor array is also often used in protection circuits, where it is used to limit the current in order to protect sensitive electronic components from damage due to over-current. Finally, the CAT16-4991F4LF is useful in power supply circuits, where it helps reduce the overall power dissipation by distributing the current among multiple resistors.

The working principle of the CAT16-4991F4LF is relatively simple. The array consists of four parallel resistors connected in series. As current passes through the resistors, it is divided up among them, with each resistor dissipating a portion of the load current. The resistors are made of a high-quality metal alloy which helps ensure excellent temperature stability and low noise performance. The clear boundaries between the channels also ensure that the current is evenly distributed among the resistors.

In conclusion, the CAT16-4991F4LF resistor array from API is an excellent choice for a variety of application fields. The resistor array can be used in digital circuits to reduce input capacitance, in signal conditioning applications, protection circuits, and power supply circuits. The four parallel resistors connected in series offer excellent load current distribution, temperature stability, and noise performance. These factors make the CAT16-4991F4LF an ideal solution for many applications.