LTC1257IS8#TRPBF

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Data acquisition includes obtaining data from different sources and converting them into more useful forms. Digital to Analog Converters (DAC) play a vital role in data acquisition as they assist in converting digital signals into analog signals. The LTC1257IS8#TRPBF are cost-effective DACs that belong to the LTC series of 12-bit and 8-bit high precision sample-and-hold DACs. It has voltage output ranges from 0 to 10V, 100kΩ switch drive, and utilizing a current steering DAC design. With low cost, fast settling time and good accuracy, the LTC1257IS8#TRPBF is a good choice when considering chip DACs.

The main applications of the LTC1257IS8#TRPBF are for applications that are demanding high precision, such as medical imaging, data acquisition, ATE systems, and digital-audio. It has a compact QFN-32L package, and is pin compatible with the LTC1257 series which offers full-scale outputs from 2.5V to 10V.

The working principle of the LTC1257IS8#TRPBF is to utilize delta-sigma architecture, with an external resistor network setting the gain. A DS20040B14CAL is a good match for this application. The input can come with a single-ended or complementary differential inputs, 12-bit or 8-bit resolution, and a two\'s complement format. Its sample rate is 1 MSPS max and its typical differential nonlinearity (DNL) is only 0.2 LSB maximum. Outputs can be retrieved using buffered analog outputs or using separate logic levels.

The LTC1257IS8#TRPBF has a supply voltage of 4.65V to 5.5V, with a minimum supply current of only 10mA. It also has a power-down power supply pin that can be connected to a digital I/O line for quick power-down and low power dissipation. It has a digital interface that consists of SCLK and SDATA and also includes a digital gain adjustment (DGA) pin for specific gain control. It has a maximum output frequency of 160kHz and the total harmonic distortion is 72dB. Its dynamic performance includes guaranteed settling time of 6.9usec (1LSB) max, and 600V/usec slew rate.

The LTC1257IS8#TRPBF is relatively easy to use and electrical characteristic with its natural gain DAC architecture. It has outstanding accuracy, high resolution, accurate data transfer, and is suitable for low speed data conversion. It has a wide range of voltage output levels, high tolerance to clock noise, and is an industry standard. It is designed to provide interoperability with a wide range of microcontrollers, FPGAs and processors, making it an ideal choice for applications that require a high performance, cost-effective analog solution.

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