TLC2543CFNG3

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Data Acquisition - Analog to Digital Converters (ADC)

The TLC2543CFNG3 is a monolithic high resolution analog to digital (A/D) converter. It is designed for direct connection to a single-ended high impedance analog source such as a pack-aged microelectromechanical accelerometer, a bridge sensor circuit, a thermocouple, or other high impedance sources. The TLC2543CFNG3 offers an excellent combination of accuracy, dynamic range, and resolution while still being low-cost.

Application Field

The device was designed for use in consumer, automotive, industrial, and medical imaging applications that require dynamic range, accuracy, and resolution over a wide temperature range. Due to its low cost, high resolution, and excellent parameter tracking over temperature, the TLC2543CFNG3 is well suited for consumer, industrial, and medical imaging applications.

The single-ended input range is from -Vref to Vref, allowing the TLC2543CFNG3 to support dynamic range up to 16 bits in resolution. The device also offers low noise and wide bandwidth for signal acquisition over a wide frequency range. This enables it to be used for signal acquisition in a variety of imaging applications, such as fMRI and ultrasound.

Working Principle

The TLC2543CFNG3 works by converting the analog signal input into a digital signal. This is done by sampling the analog signal at a rate determined by the sample and hold circuit. The sample and hold circuit then holds the sample until the TLC2543CFNG3 is ready to convert it into a digital signal. The conversion is done using a charge-redistribution successive-approximation register (SAR) architecture, which consists of a high-resolution DAC and comparator circuit.

The high-resolution DAC is used to generate reference voltages that are compared against the held sample at each step of the conversion process. The comparator circuit is used to compare the held sample to the current reference voltage. The result of the comparison determines which reference voltage is used for the next step of the conversion process, until the output digital signal is ready to be read.

The TLC2543CFNG3 is capable of converting up to 16 bits of resolution, with an input voltage range from -Vref to Vref. The device is also capable of sampling up to 20 kSPS and features low noise and wide bandwidth in its input stage, making it suitable for signal acquisition over a large frequency range.

The TLC2543CFNG3 is an ideal solution for applications requiring accuracy, dynamic range and resolution over a wide temperature range. The device provides excellent parameter tracking over temperature, making it a perfect choice for consumer, industrial and medical imaging applications.

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