LTC1451CS8#TRPBF

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Numerous applications in the industrial, commercial and telecom markets rely on precise analog control and monitoring systems. As such, many companies and industries rely on digital-to-analog converters (DACs) to accurately convert digital into analog signals. The LTC1451CS8#TRPBF is a precision DAC that can accurately convert digital information into analog signals for applications such as test and measurement, data acquisition, medical equipment, security and surveillance.

The LTC1451CS8#TRPBF is a single-channel, 14-bit voltage output DAC that is ideal for precision 16-bit digital-to-analog conversion. This model incorporates a flexible serial communications interface that allows different analog voltages to be updated on a single wire, enabling faster systems response times. The total unadjusted differential nonlinearity (DNL) is less than ± 0.4LSB and the total unadjusted integral nonlinearity (INL) is less than ± 1LSB. This model also offers a range of full-scale output voltages from 0 to 4.096V and a fully specified temperature range from -40°C to +85°C, making this model well-suited for many demanding industrial, telecom and automotive applications.

At the core of the LTC1451CS8#TRPBF is a CMOS switched capacitor digital-to-analog converter (DAC) circuit. The heart of this circuit is a small, highly accurate circuit that is capable of converting 16-bit binary digital words into a precise analogous voltage. The circuit uses a series of CMOS switches, capacitors, and resistors connected in an array to constructed a number of parallel digital-to-analog conversion stages. Each stage is controlled by the 16-bit digital word which is sent to the DAC via a single-wire serial interface. The precision of this DAC circuit is maintained by two symmetrical, low-noise reference voltages. The working voltage reference is generated internally and set to 4.096V and the accuracy of this voltage reference is ± 0.02%. The zero voltage reference is generated by a second low-noise external reference voltage that is applied to the zero input of the DAC.

Besides external accuracy trimming options, the LTC1451CS8#TRPBF offers onboard features such as an end-of-conversion (EOC) flag output, an overrange flag output, an external reset line, and an optional internal reset pin. Each of these features is included to enhance system ease-of-use and performance. The end-of-conversion flag output is especially useful, helping the designer save time by informing them when the DAC has completed its conversion and the analog voltage is ready for use.

In short, the LTC1451CS8#TRPBF is a highly efficient, accurate, and cost effective digital-to-analog converter for many industrial, commercial and telecom applications. This model is well-suited for systems where precision, low power consumption and wide temperature specifications are key.

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