ADS8405IPFBT

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Analog-to-Digital Converters (ADC) are essential in many data acquisition systems. They are responsible for converting analog information (gradually varying voltages and currents) into digital representations that can be interpreted by digital components and systems. The ADS8405IPFBT is a high performance, ultra-low power, Sigma-Delta analog-to-digital converter (ADC) with a throughput of up to 2MS/s and a resolution range of up to 18 bits. This article will discuss the application field of the ADS8405IPFBT as well as its working principle.

The superior dynamic range of the ADS8405IPFBT makes it ideally suited for application in audio, low voltage signal measurement, low power sensor nodes, battery powered systems and non‐isolated power feedback controls. The ADC has an onboard clock circuitry, thereby eliminating the need for an external oscillator and providing a lower expense. It also features selectable on-chip oversampling ratios which can be used to reduce emissions or noise, which makes it useful in applications where electromagnetic interference (EMI) is a concern. In addition, its configurable input mux and hardware-driven interface provide flexibility for how ADC channels are connected for data capture.

The ADS8405IPFBT uses the sigma-delta (Σ-Δ) modulation technique for conversion. This technique is based on oversampling, noise shaping and digital filtering. First of all, the signal is oversampled by having the input signal amplified and quantized. This quantization reduces the signal to a finite set of values. The result of this step is then shaped into a high frequency signal which is filtered out as postprocessing. The noise shaped signal is then used to sample and capture the required data. The overall goal is to reduce the total amount of data that needs to be sampled, while getting better resolution and accuracy than what could be attained by traditional analog-to-digital conversion techniques.

The ADS8405IPFBT has a throughput as high as 2MS/s with a resolution range of up to 18 bits. It is also capable of operating in various output formats, including I2S, parallel and serial modes. The ADC can operate on a range of power supply voltages, from 1.8V to 5.5V and at temperatures of up to 70°C. With its high performance, ultra-low power consumption and flexible interface, the ADS8405IPFBT is an ideal choice for a multitude of applications.

In conclusion, the ADS8405IPFBT is a high performance, ultra-low power, Sigma-Delta analog-to-digital converter (ADC) with a throughput of up to 2MS/s and a resolution range of up to 18 bits. Its superior dynamic range and configurable interface make it useful for a wide variety of applications. In addition, the use of the sigma-delta modulation technique allows for accurate and precise data acquisition.

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