LTC2635HMSE-LZ10#PBF

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Data acquisition is a major branch of digital electronics with a wide range of devices and applications. One of the major devices commonly utilized in digital to analog converters (DAC) is the LTC2635HMSE-LZ10#PBF. It is an ultra-low power \(\pm 10\) V dual-channel 10-bit digitally controlled potentiometer (DCP). Its compact size and low power make it suitable for battery-powered applications.

Application Field

The LTC2635HMSE-LZ10#PBF is suitable for a wide range of applications. It is designed for resistive sensing, control and calibration applications in the automotive, industrial, and medical fields. In the automotive field, it is used in motor control, HVAC and other motor-related applications. In the industrial field, it is used in fluid-level sensing, valve position control, servo-motor control, calibration and other industrial motion control applications. In the medical field, it is used in laboratory and patient monitors, blood-gas analyzers and blood glucose meters.

Other applications include use in pump and fan controls, audio amplifiers, security systems, and smart meters.

Working Principle

The LTC2635HMSE-LZ10#PBF combines two separately settable 10-bit digital potentiometers and a high-accuracy 10-bit analog to digital converter in a single package. The potentiometers are both adjustable from a voltage range of \(\pm 10\) V. The output of each potentiometer is a voltage that is proportional to the digital input codes. The output can be adjusted in either direction from a maximum to a minimum value.

The device is controlled by a 3-wire serial interface which can be configured for either SPI or I²C. Using the serial interface, the user can read and write the potentiometers without the need for an analog voltage source. The device can be used in either single-ended or differential voltage measurement applications.

It also has programmable soft-start functionality that reduces inrush current, allowing it to be used in applications with high starting currents, such as motor control applications. It has a wide operating temperature range of -40°C to +125°C. It also has a sleep mode that can be used to reduce power consumption when it is not in use.

Conclusion

The LTC2635HMSE-LZ10#PBF is a versatile and powerful device that can be used in a wide range of applications. Its compact size, low power consumption and wide operating temperature range make it suitable for battery-powered and industrial applications. Its programmable soft-start functionality and sleep mode make it an ideal choice for motor control, audio amplifiers and many other applications.

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