THS1215IPWG4

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Data Acquisition - Analog to Digital Converters (ADC) make it possible to convert analog signals into digital signals, and one such converter numerous engineers make use of is the THS1215IPWG4. This device is a stable, self-calibrating, low-noise, low-power precision amplifier with an integrated excitation current source — and its analog to digital converter comes in an 8-pin package.

The THS1215IPWG4 is a current-input precision amplifier, ideal for use in applications such as amplified thermocouple readings, strain gauge readings, and other types of sensors. The device features a dual rail-to-rail MOSFET input stage with a high Common-Mode Rejection Ratio (CMRR), making it ideal for small signal processing in harsh environments. Thanks to its design, it is also able to accurately convert analog input signals into 12-bit digital signals.

An integrated current source in the device makes it possible to measure very low voltages — around 100nV — with an exceptional signal-to-noise ratio of up to 100dB which avoids any kind of measurement error caused by noise. Additionally, the device includes an in-built calibration logic which automatically adjusts the gain of the amplifier every 160 seconds, ensuring that the readings are up to date and accurate.

In the context of its specific data acquisition application, the THS1215IPWG4 stands out for its very low power consumption, measuring only 3.2mW in the typical mode of operation. This allows the device to be operated from a single battery, making it the ideal choice for extremely portable battery-powered systems such as mobile medical devices.

In order to make use of the THS1215IPWG4 device, engineers and designers must first connect an analog signal to the differential input of the device, followed by connecting it to the power supply, including ground. The output signals of the device must then be connected to an ADC — such as the one included on the Atmel ATSAM3X8E Arduino microcontroller — in order to be read. Once the device is connected, designers will be able to immediately benefit from its low power consumption, low noise, and high precision analog to digital converter.

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