LTC2640HTS8-HM10#TRPBF

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Digital Analog Converters (DACs) are essential components of almost any system in which analog values need to be generated, most commonly used in communications, control and audio/video systems. The LTC2640HTS8-HM10#TRPBF is a low-voltage, 8-bit 8-Channel SPI DAC with ±2LSBs INL. It provides a complete system interface solution with a single supply operation, on-chip voltage reference, and a flexible SPI interface, making this device ideal for a diverse range of application fields.

Application Fields

The LTC2640HTS8-HM10#TRPBF DAC is ideal for applications with signals that vary in amplitude, frequency, or phase. Its low-voltage design makes it ideal for applications such as precision Power Supplies, Voltage/Current Regulation and Control,Automation, Current and Frequency Control, Test Equipment, and Audio/Video Systems. It is also used in data acquisition and sampling systems, as it can generate accurate analog representations of digital inputs.

The LTC2640HTS8-HM10#TRPBF is designed for use in battery-powered systems, and offers high-precision performance, low power consumption, and a wide operating temperature range (up to +85°C). It is available in a 10-Lead MSOP package, and is an excellent choice for space-restricted applications.

Working Principle

The LTC2640HTS8-HM10#TRPBF is designed to convert a digital code to an adjustable voltage or current. It works by using an internal voltage reference and an R-2R resistor ladder network to ensure that precise currents are driven through the external load connected to the Vout pin. The digital input is provided to the SDI, SCLK, and CS pins and is then processed by the device\'s internal digital controller.

The internal voltage reference ensures that the output voltage is accurate, while the R-2R ladder network ensures that precise currents are driven through the Vout pin. The output resolution of the DAC is 8 bits offering 256 possible voltage or current levels. The maximum output voltage/current is determined by the external reference voltage.

The LTC2640HTS8-HM10#TRPBF DAC provides a flexible SPI interface that allows programming and readback of the internal register. This allows the device to be configured for various output ranges (e.g. 0V-5V, 10V-20V) and works with various SPI clock speeds. It also provides protective features to ensure correct operation and reduced power consumption at all times.

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