AD7768集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）規(guī)格書PDF中文資料

AD7768屬于集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD7768模數(shù)轉(zhuǎn)換器（ADC）模數(shù)轉(zhuǎn)換器（ADC、A/D 或 A 轉(zhuǎn) D）對模擬信號進(jìn)行采樣，例如由麥克風(fēng)采集的聲音或傳感器的輸出，然后將其轉(zhuǎn)換為數(shù)字信號。一般來說，數(shù)字輸出是二進(jìn)制補(bǔ)碼二進(jìn)制數(shù)，與輸入成比例。輸入類型可能是差分、偽差分或單端輸入。模數(shù)轉(zhuǎn)換器可按照位數(shù)、采樣率、輸入數(shù)、接口、轉(zhuǎn)換器數(shù)和架構(gòu)（例如自適應(yīng)增量、雙斜率、折疊、流水線、SAR、三角積分、兩步式）進(jìn)行選擇。

FEATURES

? Precision ac and dc performance

? 8-/4-channel simultaneous sampling

? 256 kSPS maximum ADC ODR per channel

? 108 dB dynamic range

? DC to 110.8 kHz maximum input bandwidth (?3 dB bandwidth)

? ?120 dB THD, typical

? ±2 ppm of full-scale range (FSR) integral nonlinearity (INL),

±50 μV offset error, ±30 ppm of FSR gain error

? Optimized power dissipation vs. noise vs. input bandwidth

? Selectable power, speed, and input bandwidth

? Fast (highest speed): 110.8 kHz bandwidth, 51.5 mW per

channel

? Median (half speed): 55.4 kHz bandwidth, 27.5 mW per

channel

? Low power (lowest power): 13.8 kHz bandwidth, 9.375 mW

per channel

? Per channel digital filter

? Programmable input bandwidth/sampling rates

? CRC error checking on data interface

? Daisy-chaining

? Linear phase digital filter

? Low latency sinc5 filter

? Wideband brick wall filter: ±0.005 dB pass band ripple to

102.4 kHz

? Analog input precharge and reference precharge buffers

? Power supply

? AVDD1 = 5.0 V, AVDD2 = 2.25 V to 5.0 V

? IOVDD = 2.5 V to 3.3 V or IOVDD = 1.8 V

? 64-lead LQFP, no exposed pad

? Temperature range: ?40°C to +105°C

APPLICATIONS

? Data acquisition systems: USB/PXI/Ethernet

? Instrumentation and industrial control loops

? Audio testing and measurement

? Vibration and asset condition monitoring

? 3-phase power quality analysis

? Sonar

? High precision medical electroencephalogram (EEG)/electromyography

(EMG)/electrocardiogram (ECG)