AD7870TQ

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The AD7870TQ is a single-channel, 16-bit, simultaneous-sampling, analog-to-digital converter (ADC) with a fast, low noise input buffer. It offers excellent linearity combined with low power consumption and fast sampling rate, making it an ideal choice for a wide range of applications.

The AD7870TQ is the top-end ADC solution in the AD78xx family, providing high resolution and dynamic range, low jitter and low noise. It is well suited for applications such as broadcast television, professional audio, video conferencing, and radar/sonar.

The device features low power consumption of only 79 mW, a fast 50 MHz sampling rate, a versatile set of input gain options, wide input range, and 10 MHz power line rejection. The AD7870TQ also features an Asynchronous Reset circuitry and a Power Down feature that reduces power consumption to less than 10 µW.

In terms of the working principle, the AD7870TQ uses an internal differential capacitor array architecture to sample input signals, which helps to maintain excellent linearity. The on-chip precision resistor-capacitor (RC) reference circuit provides a stable reference voltage to the ADC. A patented mixing circuit is used to reduce extraneous signals and tends to improve noise performance. The ADC also features an adjustable input gain, allowing users to optimize the performance for their specific application.

In summary, the AD7870TQ is an ideal ADC choice for a variety of applications including broadcast television, professional audio, video conferencing, and radar/sonar. Its low power consumption and wide input range make it an attractive solution for many power-sensitive projects, while the fast sampling rate and excellent linearity make it an ideal choice for applications requiring high accuracy.

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