LTC2635CUD-HMI12#TRPBF

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LTC2635CUD-HMI12#TRPBF is a family of 12-bit voltage output digital-to-analog converters (DACs) with integrated EEPROM and an I²C compatible serial interface. It is offered in an 8-pin, 3 mm × 3 mm QFN package and is specified for operation over the temperature range of –55°C to +125°C. It has an internal voltage reference enabling software programmable offset and gain calibration.

The LTC2635CUD-HMI12#TRPBF data acquisition component is typically used in applications like Software Programmable Offset & Gain Calibration, I2C Compatible Serial Interface, Memory Access, Non-Volatile Memory, Temperature Sensor Control, Voltage-Controlled Oscillator Control, and DAC Control.

The integrated EEPROM provides storage for custom-defined value ranges in terms of voltage offsets and gain settings. The memory feature eliminates the need for potentiometers and expensive trimming, significantly reducing the component count and board layout requirements.

The LTC2635CUD-HMI12#TRPBF also provides a flexible control port that can be used to select voltage ranges and gain settings through programming the EEPROM. The on-chip EEPROM also allows for fast write times, which is important when high-speed data processing systems are involved.

The LTC2635CUD-HMI12#TRPBF DAC also features a built-in offset adjustment pin that can be used to tweak the musical note generated by the DAC output. This feature allows users to adjust the output in order to achieve a specific note, or frequency.

The voltage output range and offset can be programmed using the EEPROM, and the voltage-controlled oscillator control of the DAC provides precise tuning of the output signal over wide frequency ranges. The on-chip, high-speed I²C compatible serial interface provides fast data acquisition and control.

The working principle of LTC2635CUD-HMI12#TRPBF is based on the conversion of the digital codes supplied by the microcontroller or by the host processor into analog signals. The device consists of an input register, a control register, a Serial Peripheral Interface (SPI), and a DAC core. The input register and control register inputs/outputs are multiplexed onto the SPI bus, allowing for communication between the components.

The device then serializes the digital code and sends it out through the SPI bus. In the DAC core, the 12-bit code is decoded into a corresponding 8-bit analog voltage. The output voltage is then buffered and converted to its corresponding analog value and the result is the corresponding output voltage.

The LTC2635CUD-HMI12#TRPBF is an ideal component for applications such as temperature control, voltage-controlled oscillator (VCO) control, and DAC control. With its integrated EEPROM and I²C compatible serial interface, the component can provide fast data acquisition and control for systems that require precise voltage tuning or analog voltage outputs.

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