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LC2 MOS 5V单电源供电，低功耗的12位采样模数转换器AD7880
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The AD7880 is a high speed， low power， 12-bit A/D converter which operates from a single +5 V supply. It consists of a 3 µs track/hold amplifier， a 12 µs successive-approximation ADC， versatile interface logic and a multiple-input-range circuit. The part also includes a power save feature. An internal resistor network allows the part to accept both unipolar and bipolar input signals while operating from a single +5 V supply. Fast bus access times and standard control inputs ensure easy interfacing to modern microprocessors and digital signal processors. The AD7880 features a total throughput time of 15 µs and can convert full power signals up to 33 kHz with a sampling frequency of 66 kHz. In addition to the traditional dc accuracy specifications such as linearity， full-scale and offset errors， the AD7880 is also fully specified for dynamic performance parameters including harmonic distortion and signal-to-noise ratio. The AD7880 is fabricated in Analog Devices’ Linear Compatible CMOS （LC2 MOS） process， a mixed technology process that combines precision bipolar circuits with low power CMOS logic. The part is available in a 24-pin， 0.3 inch-wide， plastic or hermetic dual-in-line package （DIP） as well as a small 24-lead SOIC package.
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