PCM1789TPWRQ1

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Data acquisition is an important area in the field of modern electronics, allowing devices to measure and store data from physical sources. With such applications as communication systems, automotive systems, medical applications and aerospace, the devices involved must be precise, reliable and accurate. The PCM1789TPWRQ1 from Texas Instruments is a high precision special purpose data acquisition device designed for use in these high demanding applications. This article explores the applications and working principles of the PCM1789TPWRQ1.

The PCM1789TPWRQ1 is a 96-bit pipelined ADCs with I2S serial output, multiplexed 4-channel inputs and line driving capability. It is capable of producing a wide range of output resolutions, from 16-bit to 27-bit, and can operate in either single-ended or differential mode. It can be used in a variety of applications, including high precision data acquisition, medical imaging, industrial process control and testing. The device is also suitable for applications requiring data conversion accuracy as well as wide dynamic range. It has been designed to help eliminate any type of noise, either in the analog signal or the power supply, allowing maximum system accuracy and repeatability.

The PCM1789TPWRQ1 is an integrated device that has been designed to allow for easy connection to other components within the data acquisition system. It features on-chip integration of the signal chain reduce needed resources and improve system-level performance. The device incorporates a low power requirement, operating in either active or power down modes, allowing flexibility when managing battery applications. It also features a programmable-gain amplifier that can be used to adjust signal gain, allowing precise control over the system\'s dynamic range. In addition, the device includes built-in filtering and other signal processing options, helping to further reduce noise and improve system accuracy.

The PCM1789TPWRQ1 is powered by a single 3.3V supply. It includes a power up/down reset pin, allowing for easy power-down-and-up sequences. This helps keep the device\'s power consumption low and makes it ideal for battery-powered applications. Additionally, the device supports SPI, allowing for system-level communications. This helps make sure the device can easily communicate with other system components, making development and debugging of the system simpler.

The PCM1789TPWRQ1 incorporates several design features that make it suitable for high-end data acquisition applications. The device includes a single-ended to differential converter, allowing for easy connection of single-ended input signals. It also includes noise rejection circuitry, helping to further reduce input noise and help improve data accuracy. Additionally, the device includes a built-in closed-loop gain compensation block, allowing for precise control over the device\'s gain and its output dynamic range. This helps ensure the highest possible accuracy and repeatability of the system.

The PCM1789TPWRQ1 is designed to operate from a 9.2kHz switching frequency and supports 95W of sample power. The device can also operate from a 14.4kHz switching frequency and can handle up to 150W of sample power. It features an advanced clock-yielding scheme, allowing the input clock to be dynamically adjusted with respect to the output data rate, helping to ensure that the analogue samples are synchronized with the digital outputs.

The PCM1789TPWRQ1 is a high precision data acquisition device, making it suitable for use in a wide range of applications. With its low power requirement, support for multiplexed 4-channel inputs, built-in signal processing and closed-loop gain compensation block, the device is well suited for data acquisition applications requiring low noise and a wide dynamic range. Its high precision and wide dynamic range also make it a great choice for medical and industrial applications. Its integrated design, low power requirements and support for SPI communications also make it an ideal choice for a variety of applications, including automotive, medical and communications systems.

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