AD7886JD

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Introduction to AD7886JD

The AD7886JD is an 8-channel simultaneous Sampling Analog-to-Digital Converter (ADC) with a 12-bit resolution for applications that require robust data acquisition and wide bandwidth. The AD7886JD features a high-bandwidth data input range from 20kHz to 100kHz and a wide analog input range from -10 V to +10 V. This makes it an ideal choice for high-end data acquisition applications such as automated test systems, remote data acquisition, and scientific instrumentation. Additionally, it features a high-sampling rate of 90MSPS, making it perfect for high-speed data acquisition applications.

Application Field of the AD7886JD

The AD7886JD is designed for a variety of data acquisition applications where high performance and robustness are essential. Its performance and versatility make it suitable for use in a variety of applications including seismic data acquisition, motor control systems, industrial process monitoring, aircraft instrumentation, and audio systems. It also offers a low noise output with fast settling times which makes it ideal for applications such as medical imaging systems, industrial control systems, and laboratory instrumentation.

Working Principle of the AD7886JD

The AD7886JD is an 8-channel simultaneous sampling ADC that uses a pipelined architecture to sample and convert analog signals. This type of architecture breaks down an ADC process into two separate steps: the input stage, which samples the analog signal, and the output stage, which converts the data from the input stage into digital information. The input stage uses an in-amp for amplification and a track-and-hold circuit to sample the signal. The track-and-hold circuit is triggered by an external clock signal and is responsible for maintaining the sample and hold times required for the ADC. The output stage uses a sigma-delta modulator to convert the analog signal into a sequential digital output. The modulator is responsible for performing digital signal processing operations such as filtering, averaging, and decimation to provide the desired output.

The AD7886JD has an input range of -10 V to +10 V and can handle an input frequency of up to 100 kHz. It also has an internal reference voltage of 2.5 V and a maximum input voltage of +/- 3.3 V. The ADC has an analog-to-digital conversion rate of 90 MSPS and a 12-bit resolution. This means that it is capable of measuring and displaying the analog signals with a resolution of 4096 steps per volt. Additionally, the ADC has a power consumption of just 6 mW, making it ideal for portable data acquisition applications.

The AD7886JD also features an integrated data bus interface for communication between it and a host processor. This allows for fast and reliable data transfer for applications such as remote data acquisition, automatic test systems, and scientific instrumentation. The integrated data bus interface is compatible with both Serial Peripheral Interface (SPI) and Inter-Integrated Circuit (I2C) protocols.

Conclusion

To summarize, the AD7886JD is an 8-channel simultaneous Sampling Analog-to-Digital Converter with a 12-bit resolution and a high-sampling rate of 90 MSPS. This makes it an ideal choice for high-end data acquisition applications such as automated test systems, remote data acquisition, and scientific instrumentation. It has a wide range of applications and is perfect for a variety of data acquisition applications where robustness and high performance are essential. Additionally, it features a low-noise output with fast settling times, and an integrated data bus interface for communication with host processors, making it suitable for a variety of data acquisition applications.

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