LTC2630ISC6-LM12

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Data Acquisition - Digital to Analog Converters (DAC) are an integral component of electronic systems in a wide variety of applications, from industrial and automotive, to sensors and power systems. The LTC2630ISC6-LM12 is a 12-bit resolution, dual output, voltage output, digital-to-analog converter (DAC) in a low-profile MSOP package. This article will discuss the application field and working principle of the LTC2630ISC6-LM12.

Application Field

The LTC2630ISC6-LM12 is a low-cost, 8-pin DAC that utilizes a proprietary CMOS process to achieve a wide operating temperature range of -40°C to 105°C and an ultra-high precision of ±1 LSB integral nonlinearity (INL). It is particularly well suited for industrial and automotive applications because of its low profile MSOP package enabling easy in-line cluster mounting. Automotive applications, in particular, benefit from its fast settling time of only 5µs, making it feasible to rapidly convert a short, high-resolution signal during the brief ON cycle of automotive systems.

This DAC is also very useful in a variety of other applications, including sensor control, medical equipment, and power control systems. In those systems, the LTC2630ISC6-LM12 provides superior accuracy that makes it easy to adjust or fine-tune the system’s output. Furthermore, its fast settling time makes it suitable for applications that require quickly changing analog outputs.

Working Principle

Like all DACs, the LTC2630ISC6-LM12 uses a digital input to generate an analog output. In this particular design, the data is stored in a register, which is then applied to the input of a high-performance 12-bit resistor string DAC core. A reference voltage is also applied to the DAC core, and a 12-bit digital output is used to generate equally weighted voltage steps that add up to the reference voltage. The final output voltage is determined by the digital word and the relative values of the reference voltage.

In addition, the LTC2630ISC6-LM12 provides two separate analog outputs. Each of the outputs has its own data register, enabling them to output different signals if desired. It also features a programmable power-down feature, which can be used to minimize power consumption when the DAC is not in use. Finally, the device is tolerant of ESD, allowing reliable operation in many harsh environments.

Conclusion

The LTC2630ISC6-LM12 is an excellent choice for automotive, medical, and industrial applications where fast settling time and ultra-precise results are needed. With its low power consumption, wide operating temperature range and programmable power-down feature, this DAC offers a unique combination of features that make it ideally suited for these types of systems.

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