LTC2634IUD-LMX12#PBF

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The LTC2634IUD-LMX12#PBF is a Data Acquisition - Digital to Analog Converters (DAC). It is a CMOS, 10-bit, voltage output DAC in a space-saving SSOP-16 package. It is the perfect solution for converting the digital code from a microcontroller or other digital devices into a corresponding analog voltage.

The LTC2634IUD-LMX12#PBF monotonically and accurately translates digital code words into proportional analog output values with performance that is superior to most conventional D-t-A designs. The device offers a 0V to 4.096V full-scale output range and is linear to 6LSB, allowing VOUT to track the digital code’s BCD equivalent. The output buffer drives a discrete resistor string, current sink or other type of converter to generate a precise analog output. The DAC is available in different configurations including Device Identification and On-Board Programming Options. It operates from a single 5V power supply with a typical supply current of 1.8mA.

The DAC also features a power-up/power-down setting that allows the user to select one of two power-up states (zero-scale or mid-scale) for the DAC output. In addition, an input register latch allows separate write and update operations to reduce system overhead by enabling several code words to be loaded before initiating a conversion sequence. Other features include a power-down mode, a metallized SSOP package, and a -40°C to 125°C (LT suffix) operating temperature range.

The device offers simple digital command, allowing easy communication with a wide variety of common microcontrollers. The DAC is controlled by serial data transmitted via a three-wire, SPI/MICROWIRE® compatible interface which consists of Serial Data In (DIN), Serial Clock (CLK), and Load DAC Register/Chip Select (LDAC/CS). The DAC includes an on-board regulator which allows the device to be powered by either 3V or 5V logic systems. A power-on reset circuit guarantees that the DAC powers up with a mid-scale voltage.

The LTC2634IUD-LMX12#PBF has a wide range of applications. It can be used for linear control loops, industrial process control, home automation, motor driving, and systems involving analog signal conditioning. It can also be used in audio systems, sensor calibrations and compensations, remote device control, and data acquisition systems, as well as in various closed–loop and open-loop control applications.

The working principle of the DAC is based on the comparison of the reference voltage and the digital input. It generates the analog output voltage by comparing the reference voltage with the digital input code in each bit interval. The resulting analog output is proportional to the digital code word and can be manipulated simply by changing the digital code word.

In summary, the LTC2634IUD-LMX12#PBF is a Data Acquisition - Digital to Analog Converter that is ideal for applications involving analog signal conditioning, audio systems, sensor calibrations, remote device control, and data acquisition systems. It has a wide operating temperature range and simple digital commands that make communications with various microcontrollers easy. The device works by comparing the reference voltage with the digital input code and generating an analog output voltage proportional to the digital code word.

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