MAX5479ETE#G16

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Data Acquisition – Digital Potentiometers (MAX5479ETE#G16) features a new innovation that is a low current, high-precision, voltage-controlled digital potentiometer. It provides user’s multiple control options and integrated temperature coefficient compensation. This allows users to adjust the potentiometer’s resistance dynamically with an external voltage. Additionally, this device boasts an extremely low power operation and occupies very little board space making it highly suitable for applications that demand precision control, and it is capable of providing accuracy and resolution over a wide range of different settings.

The MAX5479ETE#G16 application field includes automotive, medical device, industrial automation, semiconductors, motor control, amplifier control, power conversion, audio, video, digital signal processing, networking and communication systems. Specifically, this device can be used as digital pot for instrumentation gain and offset adjustments, amplifier controls, and analog-to-digital converter (ADC) offset trim.

The working principle behind the MAX5479ETE#G16 is the EIA potentiometer interface. This is a two-wire serial interface that connects the host processor to specialize resistant elements used to perform control and measurement tasks. The two lines of this interface are an SCLK (serial clock) line and an SDI/SDO (serial data in/out) line. Through this interface, users can access three adjustable terminals and program a desired resistance between them. The direction of the data is controlled by the host, with the host processor issuing a write command that is then forcefully carried out by the digital pot.

The resistance of the digital pot is increased or decreased by the digital logic “1” or “0” on the data input line. The resistance of the potentiometer varies in direct proportion to the voltage supply of the external voltage. Additionally, this device includes temperature coefficient compensation that works to reduce drift due to temperature variation. This is particularly helpful for applications with demanding accuracy and precision requirements.

In conclusion, the MAX5479ETE#G16 digital potentiometer is a cost-effective, precision device that offers users a wide range of features and benefits. It offers multiple control options, high precision, and low power consumption. It is suitable for a broad range of automotive, medical device, industrial automation, semiconductors, and other applications. This device operates using an EIA potentiometer interface that allows users to control the resistance between three adjustable terminals and program a desired resistance value. Additionally, it features temperature coefficient compensation for improved accuracy and precision.

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