TLC3578IDWR

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The TLC3578IDWR is an 8-bit, single-channel low-power analog-to-digital converter (ADC) that is built into a standard 16-package. It is a most suitable ADC device for low-power applications. The TLC3578IDWR contains one 8-bit ADC core and supports a sampling rate of 16-bit at 125MHz. It is designed with a low-power architecture, which enables it to consume below 1mW at 300kHz, making it an energy-saving device for system applications.

The TLC3578IDWR is an ideal solution for applications requiring low-latency digital access to analog samples such as: biometric readings, analog-to-digital signal processing, embedded digital signal processing and other instrumentation applications. It is useful for data acquisition applications requiring digital sampling or processing of fast-changing analog signals.

The TLC3578IDWR provides a high-speed differential input sampling stage and a lower-speed, high-quantity single-ended input sampling stage, ideal for capturing both fast-changing and slow-changing analog signals simultaneously at relatively low switching currents. The output of the TLC3578IDWR is mapped to an 8-bit resolution output code.

The working principle of the TLC3578IDWR mainly centers around a low-power conversion architecture that enables it to consume below 1mW at 300kHz while providing accurate 8-bit results. It works on an oversampling Architecture and a Sigma-Delta Modulator. The oversampling method, 8x or 16x oversampling, is an analog-to-digital conversion technique for increasing the resolution (i.e., the number of bits per sample). By oversampling, the sampled signal is better represented by the ADC, allowing for higher-accuracy conversions.

The TLC3578IDWR also deploys a sigma-delta modulator for improved conversion accuracy and also for DC-offset elimination. The modulator is a switched capacitor filter. The modulator is used to convert the variable-amplitude analog input into a variable-frequency output with variable-width pulses. The averaged width of the pulses is directly proportional to the input voltage and is converted to a digital code. By increasing the sampling rate, the modulator\'s output contains an average value of the input signal.

The TLC3578IDWR is an 8-bit, low-power ADC in its 16-pin package. It is suitable for low-power applications such as biometrics, analog-to-digital signal processing, data acquisition, and embedded digital signal processing. Its low-power architecture enables it to consume below 1mW at 300kHz, making it a cost-effective solution for any system. Its oversampling and sigma-delta modulator architecture increases the accuracy of the conversions, providing an 8-bit resolution result.

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