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AD7810YN 데이터시트(PDF) 4 Page - Analog Devices |
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AD7810YN 데이터시트(HTML) 4 Page - Analog Devices |
4 / 11 page AD7810 –4– REV. A PIN FUNCTION DESCRIPTIONS Pin No. Mnemonic Description 1 CONVST Convert Start. Falling edge puts the track-and-hold into hold mode and initiates a conversion. A rising edge on the CONVST pin enables the serial port of the AD7810. This is useful in multi- package applications where a number of devices share the same serial bus. The state of this pin at the end of conversion also determines whether the part is powered down or not. See Operating Modes section of this data sheet. 2VIN+ Positive input of the pseudo differential analog input. 3VIN– Negative input of the pseudo differential analog input. 4 GND Ground reference for analog and digital circuitry. 5VREF External reference is connected here. 6DOUT Serial data is shifted out on this pin. 7 SCLK Serial Clock. An external serial clock is applied here. 8V DD Positive Supply Voltage 2.7 V to 5.5 V. PIN CONFIGURATION DIP/SOIC 1 2 3 4 8 7 6 5 TOP VIEW (Not to Scale) AD7810 CONVST VIN+ VIN– GND VDD SCLK DOUT VREF THROUGHPUT – kSPS 10 1 0.01 030 10 0.1 20 40 50 Figure 2. Power vs. Throughput Typical Performance Characteristics FREQUENCY BINS –115 –95 –75 –55 –35 –15 2048 POINT FFT SAMPLING 357.142kSPS FIN = 30kHz Figure 3. AD7810 SNR |
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