UC39431D

UC39431D Application Field and Working Principle

UC39431D is a voltage reference integrated circuit (IC) product developed by Texas Instruments. It is a precision voltage reference with typical temperature coefficient of 50 ppm/°C, ideal for touch panel and system power management applications. This voltage reference IC integrates an 8-bit D/A converter and can achieve an output range that is adjustable from 0.8V to 5.0V. It is a very versatile voltage reference product with lower power consumption, faster response time, high accuracy and wide temperature range.

UC39431D Application Field

UC39431D is a voltage reference suitable for various medical device and automotive touch panel applications. Since it has a very precise voltage reference and wide temperature range, it is preferred by medical device and consumer device OEM’s as it can ensure reliable and accurate operation even in extreme environmental conditions. It also has very good thermal performance, so it is suitable for use in applications where temperature variations may occur. Besides, the product is designed for cost sensitive system power management applications, making it an ideal choice for touch panel makers.

UC39431D Working Principle

The UC39431D is a Pin-Selectable Adjustable Voltage Reference. It is powered by an internal 2.5V precision voltage reference which in turn supplies a 2-bit binary coded voltage setting that is translated into an analog output voltage through 8 bits of onboard digital-to-analog conversion. The wide output range can be programmed through a simple two-bit binary code that corresponds to the specified voltage range. The voltage reference output can also be trimmed by an external resistor for higher accuracy. With its very low temperature coefficient, the UC39431D can maintain a high degree of accuracy over a very wide temperature range.

Summary

UC39431D is a voltage reference IC product developed by Texas Instruments. It is an 8-bit D/A converter with a precision voltage reference, ideal for touch panel and cost sensitive system power management applications. The IC integrates a 2.5V precision voltage reference and an 8-bit D/A converter that can deliver an adjustable output ranging from 0.8V to 5.0V over a wide temperature range. With its low power consumption, fast response time, high accuracy and wide temperature range, the UC39431D is a popular choice among medical device and consumer device makers that require reliable and accurate operation.