Datasheet AD7981-KGD (Analog Devices) - 5

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Known Good Die AD7981-KGD TIMING SPECIFICATIONS
TA = −55°C to +175°C, VDD = 2.375 V to 2.625 V, VIO = 3.3 V to 5.5 V, unless otherwise stated. See Figure 2 and Figure 3 for load conditions.
Table 3. Parameter Symbol Min Typ Max Unit
Conversion Time: CNV Rising Edge to Data Available tCONV 625 1377 ns Acquisition Time tACQ 290 ns Time Between Conversions tCYC 1667 ns CNV Pulse Width (CS Mode) tCNVH 10 ns SCK Period (CS Mode) tSCK VIO Above 4.5 V 10.5 ns VIO Above 3 V 12 ns VIO Above 2.7 V 13 ns VIO Above 2.3 V 15 ns SCK Period (Chain Mode) tSCK VIO Above 4.5 V 11.5 ns VIO Above 3 V 13 ns VIO Above 2.7 V 14 ns VIO Above 2.3 V 16 ns SCK Low Time tSCKL 4.5 ns SCK High Time tSCKH 4.5 ns SCK Falling Edge to Data Remains Valid tHSDO 3 ns SCK Falling Edge to Data Valid Delay tDSDO VIO Above 4.5 V 9.5 ns VIO Above 3 V 11 ns VIO Above 2.7 V 12 ns VIO Above 2.3 V 14 ns CNV or SDI Low to SDO D15 MSB Valid (CS Mode) tEN VIO Above 3 V 10 ns VIO Above 2.3 V 15 ns CNV or SDI High or Last SCK Falling Edge to SDO High Impedance (CS Mode) tDIS 20 ns SDI Valid Setup Time from CNV Rising Edge tSSDICNV 5 ns SDI Valid Hold Time from CNV Rising Edge (CS Mode) tHSDICNV 2 ns SDI Valid Hold Time from CNV Rising Edge (Chain Mode) tHSDICNV 0 ns SCK Valid Setup Time from CNV Rising Edge (Chain Mode) tSSCKCNV 5 ns SCK Valid Hold Time from CNV Rising Edge (Chain Mode) tHSCKCNV 5 ns SDI Valid Setup Time from SCK Falling Edge (Chain Mode) tSSDISCK 2 ns SDI Valid Hold Time from SCK Falling Edge (Chain Mode) tHSDISCK 3 ns SDI High to SDO High (Chain Mode with Busy Indicator) tDSDOSDI 15 ns
500µA I Y% VIO1 OL X% VIO1 tDELAY tDELAY TO SDO 1.4V VIH2 VIH2 C V L IL2 VIL2 20pF 1FOR VIO ≤ 3.0V, X = 90 AND Y = 10; FOR VIO > 3.0V, X = 70 AND Y = 30.
002 003
500µA I 2 OH MINIMUM VIH AND MAXIMUM VIL USED. SEE DIGITAL INPUTS
12589-
SPECIFICATIONS IN TABLE 2.
12589- Figure 2. Load Circuit for Digital Interface Timing Figure 3. Voltage Levels for Timing Rev. A | Page 5 of 9 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TERMINOLOGY OUTLINE DIMENSIONS DIE SPECIFICATIONS AND ASSEMBLY RECOMMENDATIONS ORDERING GUIDE