DAC1282AIPW

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The DAC1282AIPW is an integrated circuit from Texas Instruments that is designed for data acquisition and signal conditioning. This device is part of TI’s advanced family of device solutions that are optimized for cost-sensitive applications. It is a low-power, monolithic, 8-bit do-it-all ADC and DAC, which offers a wide range of integrated functions, including integration and calibration, filtering, and more, to improve system performance and reduce overall design time.

The DAC1282AIPW is used for data acquisition applications such as high-resolution instrumentation, current and voltage measurements, quiescent current measurement, and digital signal processing. Its integrated 8-bit ADC and DAC provide reliable and repeatable measurements with an accuracy of up to 16-bits and offer a total of 128K of memory for storing data, thus making it suitable for applications such as test and measurement, process control, and embedded systems. It also features an onboard temperature sensor for temperature measurements, which can be connected to an external temperature source for remote sensing, enabling temperature control over long distances.

The DAC1282AIPW has a programmable, low-power reference voltage circuitry that can be used to power other components within the system. It has an external 12V supply voltage and provides a single output voltage of 1.25V and an LDO output of 3.3V. The DAC1282AIPW also provides programmable input and output amplifiers, allowing designers to optimize the device for their application. The gain and offset of the input amplifier are both adjustable and the output amplifier can be configured to provide an external resistor termination, low-pass filtering, and more.

In terms of data acquisition, the DAC1282AIPW latency of less than 18 ns makes it suitable for fast sampling applications as it requires only two clock cycles for a full 8-bit conversion. The DAC1282AIPW is also capable of self-calibration during power-on through a unique calibration circuit that allows for a minimum of accuracy drift over temperature and is suitable for high-speed applications. Additionally, the self-calibration feature ensures the stable temperature performance with minimal calibration cycle overhead.

The DAC1282AIPW can also be used for signal conditioning, thanks to its programmable voltage reference circuitry. It offers programmable gain and offset settings, allowing designers to optimize the device’s performance for their application. The programmable input and output amplifiers also allow for more precision in signal conditioning. Additionally, the programmable voltage reference offers higher accuracy than many traditional voltage references and the ability to use external sources.

In terms of performance, the DAC1282AIPW offers a wide gain and offset range, low power consumption, and extends linearity and accuracy performance over temperature. It also has on-chip temperature compensation and individual channel calibration, allowing for improved system performance and accuracy. Additionally, it has an internal short-circuit-protection output, allowing for safe operation by protecting the chip from accidental over-currents.

All in all, the DAC1282AIPW from TI is a highly integrated monolithic device that offers a wide range of features for data acquisition and signal conditioning. It is suitable for a variety of applications from high-resolution instrumentation to process control and embedded systems. Its low power consumption, fast sampling, integrated functions, and programmable features make it an ideal choice for cost-sensitive applications.

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