LTC2636CMS-LMX10#TRPBF

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LTC2636CMS-LMX10#TRPBF is an integrated high-speed current-output digital to analog converter (DAC) designed to reduce the number of external components needed to interface the DACs to an analog system. The DACs have a direct connection to the microprocessor (MPU), programmable logic controller (PLC), or other basic input/output system (I/O). The DACs provide a low-cost, reliable solution for converting digital input data into an analog signal.

Application Field

The LTC2636CMS-LMX10#TRPBF is ideal for a wide range of applications, such as power system optimization, current monitoring and sensing, motor speed control, and industrial process control. This DAC is also useful for monitoring and controlling temperatures, flow rates, pressures, and other parameters in industrial and commercial environments. Additionally, it can be used for measurements in audio/video/telecommunications settings, such as current control for video production and synchronizing of audio and video signals.

Working Principle

The LTC2636CMS-LMX10#TRPBF DAC consists of two basic parts: the digital input register and the analog output circuit. The digital input register consists of a latch and a reference voltage buffer. The latch stores the input data during a write cycle, and the reference voltage buffer is configured to provide a reference voltage that is proportional to the input data. The analog output circuit consists of a sample-and-hold amplifier that accepts the reference voltage as its input, and a current-mirroring circuit that converts the output voltage to a proportional current.

To generate the analog signal, the microcontroller or data source sends the digital word to the DAC. This word is stored in the latch and the reference voltage is generated and applied to the sample-and-hold amplifier. The sample-and-hold amplifier then produces a voltage that is proportional to the reference voltage. This voltage is then converted to a current through the current-mirroring circuit and applied to the analog output. This output current is proportional to the digital input, resulting in an analog output that is faithful to the digital input.

Summary

The LTC2636CMS-LMX10#TRPBF is a versatile, high-performance current-output digital to analog converter (DAC). This DAC is ideally suited to a wide range of applications, including power system optimization, current monitoring and sensing, motor speed control, industrial process control, and audio/video/telecommunications settings. Its operation is based on the principle of converting digital input data into a proportional analog signal using a reference voltage, sample-and-hold amplifier, and current-mirroring circuit.

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