Datasheet LTC2358-18 (Analog Devices) - 7

LTC2358-18
ADC TIMING CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 9) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
tCNVH CNV High Time l 40 ns tCNVL CNV Low Time l 750 ns tBUSYLH CNV↑ to BUSY Delay CL = 25pF l 30 ns tQUIET Digital I/O Quiet Time from CNV↑ l 20 ns tPDH PD High Time l 40 ns tPDL PD Low Time l 40 ns tWAKE REFBUF Wake-Up Time CREFBUF = 47μF, CREFIN = 0.1μF 200 ms
CMOS I/O Mode
tSCKI SCKI Period (Notes 18, 19) l 10 ns tSCKIH SCKI High Time l 4 ns tSCKIL SCKI Low Time l 4 ns tSSDISCKI SDI Setup Time from SCKI↑ (Note 18) l 2 ns tHSDISCKI SDI Hold Time from SCKI↑ (Note 18) l 1 ns tDSDOSCKI SDO Data Valid Delay from SCKI↑ CL = 25pF (Note 18) l 7.5 ns tHSDOSCKI SDO Remains Valid Delay from SCKI↑ CL = 25pF (Note 18) l 1.5 ns tSKEW SDO to SCKO Skew (Note 18) l –1 0 1 ns tDSDOBUSYL SDO Data Valid Delay from BUSY↓ CL = 25pF (Note 18) l 0 ns tEN Bus Enable Time After CS↓ (Note 18) l 15 ns tDIS Bus Relinquish Time After CS↑ (Note 18) l 15 ns
LVDS I/O Mode
tSCKI SCKI Period (Note 20) l 4 ns tSCKIH SCKI High Time (Note 20) l 1.5 ns tSCKIL SCKI Low Time (Note 20) l 1.5 ns tSSDISCKI SDI Setup Time from SCKI (Notes 11, 20) l 1.2 ns tHSDISCKI SDI Hold Time from SCKI (Notes 11, 20) l –0.2 ns tDSDOSCKI SDO Data Valid Delay from SCKI (Notes 11, 20) l 6 ns tHSDOSCKI SDO Remains Valid Delay from SCKI (Notes 11, 20) l 1 ns tSKEW SDO to SCKO Skew (Note 11) l –0.4 0 0.4 ns tDSDOBUSYL SDO Data Valid Delay from BUSY↓ (Note 11) l 0 ns tEN Bus Enable Time After CS↓ l 50 ns tDIS Bus Relinquish Time After CS↑ l 15 ns 235818f For more information www.linear.com/LTC2358-18 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Internal Reference Characteristics Reference Buffer Characteristics Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Configuration Tables Functional Block Diagram Timing Diagram Applications Information Board Layout Package Description Typical Application Related Parts