DS1859B-050+T&R/B

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Data Acquisition - Digital Potentiometers is a broad area that includes technologies used to measure changes in electrical signals, measure and record temperature, pressure and other parameters, monitor digital logic signals, and transfer electrical and logic signals over long distances. The DS1859B-050+T&R/B has been designed to provide users with the ideal solution for the two major applications that require digital potentiometers, namely temperature control and amplitude modulation. The following paragraphs discuss the application field and working principle of the DS1859B-050+T&R/B digital potentiometer.

Temperature Control: The DS1859B-050+T&R/B is designed to provide users with the ability to control the temperature of a system or application accurately and quickly. It uses a four-wire technique to sense and control temperature, providing excellent accuracy, high precision, and fast response time. The device is capable of providing up to sixteen bits of resolution for better performance and control. Furthermore, the internal nonvolatile control can be written and read from the EEPROM of the device.

Amplitude Modulation: Amplitude modulation is an integral part of many communications systems and applications. The DS1859B-050+T&R/B digital potentiometer makes amplitude modulation easy and efficient. The device can be used to precisely modify and control the amplitude of a signal by using two 7-bit linear segments. The linear segments have a range of 0 to 100 and a resolution of 16 bits. The DS1859B-050+T&R/B also features a temperature monitoring amplifier that provides excellent accuracy and precision for temperature control.

Working Principle: The DS1859B-050+T&R/B digital potentiometer works on the principle of reverse polarity regulated monolithic Zener diode. It utilizes an internal non-volatile control to allow the values of both control and setpoints to be written and read from an EEPROM memory. The device includes two linear segments, an output shift register, and an EPROM data latch. The output shift register is activated by an internal shift pulse and shifts the current through the FETs, controlling the value of the analog output. The EPROM data latch is used to store the value of the device’s control and setpoints. The device is fully compliant with the IEC standards for isolation and operation, meaning it is suitable for use in a wide range of applications.

In conclusion, the DS1859B-050+T&R/B digital potentiometer is a versatile device that can be used for temperature control and amplitude modulation. It is designed with a four-wire temperature sensing technique, providing excellent accuracy and high resolution. Furthermore, the device works on the principle of reverse polarity regulated monolithic Zener diode and is fully compliant with IEC standards for isolation and operation. As such, the DS1859B-050+T&R/B digital potentiometer is an ideal solution for applications requiring precision temperature control and modulation of signal amplitude.

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