ADS1208IPWG4

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ADS1208IPWG4 is a high-precision, low-power, 8-channel simultaneous sampling A/D converter for data acquisition applications. It is widely used in a variety of fields in the industry and academia, including temperature and voltage measurement, precision analog-to-digital conversion, remote sensing and data acquisition in medical and ATE/instrumentation system. This article will discuss the application field and working principle of the ADS1208IPWG4.

The ADS1208IPWG4 can provide a wide range of day-and-night accuracy. Its maximum effective resolution is up to 18-bit and the maximum sampling rate is 650 ksps. This multichannel A/D converter provides up to 8 single-ended or 4 differential analog inputs with a programmable gain amplifier with gains from 1 to 128. With its built-in low noise, high-precision reference and internal temperature sensor, the ADS1208IPWG4 has a wide temperature operating range of -40 to +105 degrees Celsius. It also provides up to 4 general purpose IO ports for interfacing with external components or other data acquisition or control devices.

The ADS1208IPWG4 is a high-precision ADC with a 24-bit digital output. It features an on-chip, low-noise instrumentation amplifier, as well as built-in temperature and pressure sensors. The on-chip reference amplifier ensures maximum accuracy and stability over temperature and time. The ADS1208IPWG4 also includes an 8-channel multiplexer, a built-in charge pump, and an onboard 10-bit DAC that can provide output voltages of up to 3.2V.

The ADS1208IPWG4’s working principle is based on a successive approximation conversion technique. It works in two parts: a charge pumping stage to charge the unknown capacitor, and a successive approximation register (SAR) stage to compare the input voltage to an internal reference voltage. The SAR stage will adjust the charge on the capacitor until the output voltage is equal to the reference voltage. The SAR stage then records this value, which corresponds to the digital data of the A/D conversion.

The ADS1208IPWG4 is a high-precision and low-power device ideal for data acquisition applications. Its 18-bit resolution, temperature and pressure sensors, and 8-channel multiplexer make it suitable for a wide range of temperature and voltage measurement, precision analog-to-digital conversion, remote sensing and data acquisition in medical and ATE/instrumentation systems. Its on-chip charge pump ensures accurate charging of the unknown capacitor, while the successive approximation register (SAR) stage accurately measures the unknown voltage and converts it to a digital value.

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