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AD7902 データシート(PDF) 6 Page - Analog Devices |
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AD7902 データシート(HTML) 6 Page - Analog Devices |
6 / 29 page Data Sheet AD7903 Rev. A | Page 5 of 28 TIMING SPECIFICATIONS −40°C to +125°C, VDD = 2.37 V to 2.63 V, VIO = 2.3 V to 5.5 V, unless otherwise stated. See Figure 2 and Figure 3 for load conditions. Table 4. Parameter Symbol Min Typ Max Unit Conversion Time (CNVx Rising Edge to Data Available) tCONV 500 710 ns Acquisition Time tACQ 290 ns Time Between Conversions tCYC VIOx Above 2.3 V 1000 ns CNVx Pulse Width (CS Mode) tCNVH 10 ns SCKx Period (CS Mode) tSCK VIOx Above 4.5 V 10.5 ns VIOx Above 3 V 12 ns VIOx Above 2.7 V 13 ns VIOx Above 2.3 V 15 ns SCKx Period (Chain mode) tSCK VIOx Above 4.5 V 11.5 ns VIOx Above 3 V 13 ns VIOx Above 2.7 V 14 ns VIOx Above 2.3 V 16 ns SCKx Low Time tSCKL 4.5 ns SCKx High Time tSCKH 4.5 ns SCKx Falling Edge to Data Remains Valid tHSDO 3 ns SCKx Falling Edge to Data Valid Delay tDSDO VIOx Above 4.5 V 9.5 ns VIOx Above 3 V 11 ns VIOx Above 2.7 V 12 ns VIOx Above 2.3 V 14 ns CNVx or SDIx Low to SDOx, D15 (MSB) Valid (CS Mode) tEN VIOx Above 3 V 10 ns VIOx Above 2.3 V 15 ns CNVx or SDIx High or Last SCKx Falling Edge to SDOx High Impedance (CS Mode) tDIS 20 ns SDIx Valid Setup Time from CNVx Rising Edge (CS Mode) tSSDICNV 5 ns SDIx Valid Hold Time from CNVx Rising Edge (CS Mode) tHSDICNV 2 ns SCKx Valid Setup Time from CNVx Rising Edge (Chain Mode) tSSCKCNV 5 ns SCKx Valid Hold Time from CNVx Rising Edge (Chain Mode) tHSCKCNV 5 ns SDIx Valid Setup Time from SCKx Falling Edge (Chain Mode) tSSDISCK 2 ns SDIx Valid Hold Time from SCKx Falling Edge (Chain Mode) tHSDISCK 3 ns SDIx High to SDOx High (Chain Mode with Busy Indicator) tDSDOSDI 15 ns Figure 2. Load Circuit for Digital Interface Timing Figure 3. Voltage Levels for Timing 500µA IOL 500µA IOH 1.4V TO SDOx CL 20pF X% VIOx1 Y% VIOx1 VIH2 VIL2 VIL2 VIH2 tDELAY tDELAY 1 FOR VIOx ≤ 3.0V, X = 90 AND Y = 10; FOR VIOx > 3.0V, X = 70 AND Y = 30. 2 MINIMUM VIH AND MAXIMUM VIL USED. SEE SPECIFICATIONS FOR DIGITAL INPUTS PARAMETER IN TABLE 3. |
同様の部品番号 - AD7902 |
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同様の説明 - AD7902 |
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