ADS127L01IPBSR

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Data acquisition technology is an important aspect of research and design. In particular, analog to digital converters (ADC) are used to convert analog signals into digital ones. ADS127L01IPBSR is a popular ADC chip produced by Texas Instruments, and it is designed to enable high-speed data acquisition. This article will discuss the application field and working principle of the ADS127L01IPBSR.

Application Field

The ADS127L01IPBSR is a low-power, 16-bit pixel-level analog to digital converter with 16 configurable single-ended inputs. It is mainly used in image sensors, line scan sensors, flat panel arrays, and other high-speed, low-noise imaging applications. It is also used for conversion of low-frequency low-frequency signals, such as ultrasound and radioactive emissions, as well as medium-frequency signals from geophones, accelerometers, and other sensors.

Because of its high-speed, low-noise-amplitude characteristics, the ADS127L01IPBSR is suitable for data acquisition applications in a variety of fields, such as medical imaging, industrial automation, security, and automotive industries.

Working Principle

The ADS127L01IPBSR has two parts: the ADC front end and the control logic. The ADC front end consists of four differential input stages and two 16-bit ADC channels, each of which has its own switching circuit. The front end’s input is connected to the corresponding differential-input stage and then to the two ADC channels. The ADC is capable of converting 16 analog inputs into two 16-bit digital words in parallel. The maximum conversion rate is 200 MSPS.

The control logic contains the main ADC control registers and the serial LSB-first interface. The control registers are used to configure the digital output data and the transfer sequence, select the desired differential stages, and configure the digital output noise-level reduction level. This control logic also allows to manage the serial input and output of the ADC front end and the control registers.

The conversion process starts when the reset line is asserted high. When the reset line is asserted and the ADC is enabled, the pixel clock and the sampling system start to work. The data is then shuffled through the four differential stages and each of the two ADC channels. The data is then ready for conversion and the result is stored into the internal register. Finally the data is shifted out from the serial output LSB-first interface.

In summary, the ADS127L01IPBSR is a popular ADC chip from Texas Instruments. Its application field includes image sensors, line scan sensors, flat panel arrays, and so on. It also excels at converting low-frequency and medium-frequency signals into digital data. Its working principle involves four differential input stages and two 16-bit ADC channels, and the conversion process is managed by a control logic.

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