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AD7910ARM-REEL7 데이터시트(PDF) 7 Page - Analog Devices |
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AD7910ARM-REEL7 데이터시트(HTML) 7 Page - Analog Devices |
7 / 20 page REV. B AD7910/AD7920 –7– PIN FUNCTION DESCRIPTIONS Mnemonic Function CS Chip Select. Active low logic input. This input provides the dual function of initiating conversions on the AD7910/ AD7920 and framing the serial data transfer. VDD Power Supply Input. The VDD range for the AD7910/AD7920 is from 2.35 V to 5.25 V. GND Analog Ground. Ground reference point for all circuitry on the AD7910/AD7920. All analog input signals should be referred to this GND voltage. VIN Analog Input. Single-ended analog input channel. The input range is 0 to VDD. SDATA Data Out. Logic output. The conversion result from the AD7910/AD7920 is provided on this output as a serial data stream. The bits are clocked out on the falling edge of the SCLK input. The data stream from the AD7920 consists of four leading zeros followed by the 12 bits of conversion data, which is provided MSB first. The data stream from the AD7910 consists of four leading zeros followed by the 10 bits of conversion data followed by two trailing zeros, which is also provided MSB first. SCLK Serial Clock. Logic input. SCLK provides the serial clock for accessing data from the part. This clock input is also used as the clock source for the AD7910/AD7920 conversion process. NC No Connect PIN CONFIGURATIONS 6-Lead SC70 TOP VIEW (Not to Scale) 6 5 4 1 2 3 VDD GND VIN CS SDATA SCLK AD7910/ AD7920 8-Lead MSOP 8 7 6 5 1 2 3 4 VDD SDATA CS VIN GND SCLK NC NC TOP VIEW (Not to Scale) AD7910/ AD7920 NC = NO CONNECT |
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