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ad7453伪差分555 kSPS的12位ADC在8引脚SOT-23数据表
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The AD74531 is a 12-bit， high speed， low power， successive approximation （SAR） analog-to-digital converter that features a pseudo differential analog input. This part operates from a single 2.7 V to 5.25 V power supply and features throughput rates up to 555 kSPS. The part contains a low noise， wide bandwidth， differential track-and-hold amplifier （T/H） that can handle input frequencies up to 3.5 MHz. The reference voltage for the AD7453 is applied externally to the VREF pin and can range from 100 mV to VDD， depending on the power supply and what suits the application. The conversion process and data acquisition are controlled using CS and the serial clock， allowing the device to interface with microprocessors or DSPs. The input signals are sampled on the falling edge of CS; the conversion is also initiated at this point. The SAR architecture of this part ensures that there are no pipeline delays. The AD7453 uses advanced design techniques to achieve very low power dissipation.
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