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AD771x 24位 ΣΔ A D转换器在低频，高精度工业传
消耗积分:5 |
格式:rar |
大小:168 |
2009-06-10
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The AD771x Series is a family of ADCs that are designed
specifically for low frequency, high accuracy industrial
transducer applications. Figure 1 shows a block diagram
of one of these devices. The analog front end, which in
some cases also includes excitation sources for sensors,
accepts low level signals that can be amplified by the
internal programmable gain amplifier before being
applied to a sigma-delta modulator. The pulse stream
appearing at the output of this modulator is applied to a
digital filter which produces a low-pass filtered, high
resolution, serial output.
specifically for low frequency, high accuracy industrial
transducer applications. Figure 1 shows a block diagram
of one of these devices. The analog front end, which in
some cases also includes excitation sources for sensors,
accepts low level signals that can be amplified by the
internal programmable gain amplifier before being
applied to a sigma-delta modulator. The pulse stream
appearing at the output of this modulator is applied to a
digital filter which produces a low-pass filtered, high
resolution, serial output.
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