MAX5411ETE+T

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Data Acquisition - Digital Potentiometers

A digital potentiometer is an electronically controlled variable resistor with an input channel, a DAC channel, and a network of resistors providing the adjustable resistance. The MAX5411ETE+T is a high-precision, volatile, bidirectional digital potentiometer, five-channel digitally programmable resistor. This digital potentiometer is designed to enable a broad range of application scenarios by delivering a low temperature coefficient and high accuracy.

The MAX5411ETE+T comes with a potentiometer and temperature measurement unit. The potentiometer is designed with 8 pin and 9 pin packages that can be driven using digital logic signals. The potentiometer provides up to 64 taps to allow for 256 resistance values. In addition, it can be programmed with a software interface to program different resistance values.

The temperature measurement unit in the MAX5411ETE+T is meant to detect temperature changes and adjust the resistance value accordingly. The temperature is measured by an onboard A/D converter and temperature range is between -55°C and +85°C. The temperature is specified to have a 0.15°C typical resolution and a 0.2°C typical accuracy.

The MAX5411ETE+T features a wide variety of features, including fast wiper switching speed, low wiper power dissipation, tuneable wiper nonlinearity and nonlinearity is minimized between adjacent taps. The MAX5411ETE+T is specified to have a temperature coefficient of 4ppm/°C, a wiper resistance of 0~100kΩ, and an adjustable resistance range of 10000:1. In addition, the device has a low voltage cutoff voltage of 0.7V.

The MAX5411ETE+T can be used in a variety of applications, such as volume control and instrumentation measurement. It is used in volume control applications as an analog-controlled digital potentiometer that is driven by an MCU or logic circuit. It\'s used in instrumentation measurement applications to provide resistance values in control loops or to set gains in amplifiers and filters.

The operating principle of the MAX5411ETE+T is simple. The digital potentiometer gets its input from a digital logic signal. The input signal is directed to a data input port and to a databus. The databus is connected to an 8-bit DAC which produces an analog voltage. The voltage from the DAC is then connected to the wiper, which produces a resistance across the potentiometer. The resistance is then sent to the wiper output port.

The MAX5411ETE+T is powered by a voltage ranging from 2.5V to 5.5V, and it operates in temperatures ranging from -55°C to +85°C. This digital potentiometer also features fast switching speeds, low wiper power dissipation, and a high accuracy of temperature measurement. By providing a range of features and advantages, the MAX5411ETE+T is an optimal solution for data acquisition and control applications.

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