MAX5443AEUA+T

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Data Acquisition Digital to Analog (DAC) Converters are used to digitize analog signals, allowing measurement and storage of a wide range of information. One DAC type is the MAX5443AEUA+T, a high-precision, low-power Digital to Analog Converter (DAC) with on-chip voltage reference. It’s suitable for a variety of applications that require a high-accuracy digital-to-analog conversion. This article will discuss the application field and working principle of the MAX5443AEUA+T.

The MAX5443AEUA+T is appropriate for a range of applications involving current and voltage sources, systems with amplified signals, and power supplies where precision and accuracy are important. It offers various features such as low power consumption, 16-bit/18-bit resolution and 8-channel (branch) selection. Designed for industrial, automotive and medical applications, this DAC offers low power consumption, excellent linearity and thermal performance. Its full-scale step size is adjustable from 1 µV to 10 µV, with a current output drive capability of ±4 mA (max) and a total accuracy of ±0.025%. This DAC also features an on-chip voltage reference which guarantees a true bipolar output voltage.

The MAX5443AEUA+T operates in a 3-wire serial bus protocol, using digital communication interface (I2C) as well as a SPI selectable digital output interface. The SPI interface comprises of two-wire serial data, a bit clock and chip select inputs. The I2C interface includes a two-wire serial clock and data inputs. The design includes two independent digital-to-analog conversion blocks and digital compensation circuitry. The multiplexer (MUX) cascades the digital inputs to the DAC array. The MUX is addressable, allowing control of each DAC individually.

The MAX5443AEUA+T features require a dual-supply voltage from 4.5V to 20V to deliver a full-scale output. The supply voltage is also used to power the device and provide an accurate reference voltage from an on-chip reference with an accuracy of ±0.01%. The device also requires an external trim cap for fine tuning the DAC’s full-scale accuracy.

With its superior 8-channel DAC performance and its extremely low power requirements, the MAX5443AEUA+T is an excellent choice for a wide range of digital-to-analog conversion applications. Its flexible digital interface and low-cost make it ideal for use in industrial, automotive, and medical applications. It is easy to use and provides high-performance accuracy and precision measurement.

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