AD7890BR-10

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The AD7890BR-10 is a special purpose data acquisition device, placed in the category of Analog-to-digital Converters (ADCs) and Digital-to-analog Converters (DACs). This device was designed to perform 12-bit, single-ended A/D conversions with sampling rates up to 1.25 MHz. This device is suited for applications that require high speed and low-power A/D conversion.

The application field for the AD7890BR-10 is quite broad; it can be used for a variety of data acquisition applications such as embedded control systems, data acquisition systems, industrial automation and process control. It can also be used in automotive diagnostic and testing applications.

In terms of its working principles, the AD7890BR-10 first converts the incoming single-ended signals from the analog world into digital equivalent through its 12-bit conversion. This conversion is done through successive approximation via a high-speed analog-to-digital converter (ADC). The sampled digital codes are then outputted to the digital world. This conversion process is done at a rate of 1.25 MHz.

The chip also features a p-channel MOSFET switch that allows the user to select between internal and external reference voltages. The chip also features a power-down mode which can help to reduce power consumption when the chip is in standby state.

In terms of electrical specifications, the AD7890BR-10 features a differential gain error that is lower than 02.5% and a total harmonic distortion of 0.75%. It also comes with a maximum (+VREF to -VREF ) input-voltage range of VDD+0.1V. Furthermore, the device has a very wide operating temperature range, from -40°C to +105°C.

To ensure proper operation, the user has to ensure that the power supply has sufficient decoupling, regulation, and filtering; otherwise, the chip could become malfunctioning or unstable. Furthermore, the user should also ensure that the signal to be converted by the chip is within the range of the device, and also ensure that it is filtered in order to avoid noise.

In summary, the AD7890BR-10 is a special purpose Analog-to-digital Converter (ADC) and Digital-to-analog Converter (DAC), designed with 12-bit, single-ended conversion and sampling rates up to 1.25 MHz. It can be used for a variety of data acquisition applications, including embedded control systems, data acquisition systems, industrial automation and process control, and automotive diagnostic and testing applications. It also has an impressive set of electrical specifications, including a differential gain error of less than 0.25%, a total harmonic distortion rate of 0.75%, and a very wide operating temperature range. In order to ensure proper operation, the user must also ensure that power supply has sufficient decoupling, regulation, and filtering, and that the signal to be converted by the chip is within the range of the device.

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