Datasheet AD7694 (Analog Devices) - 6

Data Sheet AD7694 TIMING SPECIFICATIONS
VDD = 4.75 V to 5.25 V; TA = −40°C to +85°C, unless otherwise stated.
Table 4. Parameter Symbol Min Typ Max Unit
Conversion Time: CNV Rising Edge to Data Available tCONV 3.2 µs Time Between Conversions tCYC 4 µs SCK Period tSCK 50 ns SCK Low Time tSCKL 20 ns SCK High Time tSCKH 20 ns SCK Falling Edge to Data Remains Valid tHSDO 5 ns SCK Falling Edge to Data Valid Delay tDSDO 20 ns CNV Low to SDO, D15 MSB Valid tEN 60 ns CNV High to SDO High Impedance tDIS 60 ns VDD = 2.7 V to 4.75 V; TA = −40°C to +85°C, unless otherwise stated.
Table 5. Parameter Symbol Min Typ Max Unit
Conversion Time: CNV Rising Edge to Data Available tCONV 4.66 µs Time Between Conversions tCYC 6.66 µs SCK Period tSCK 125 ns SCK Low Time tSCKL 50 ns SCK High Time tSCKH 50 ns SCK Falling Edge to Data Remains Valid tHSDO 5 ns SCK Falling Edge to Data Valid Delay tDSDO 50 ns CNV Low to SDO, D15 MSB Valid tEN 120 ns CNV High to SDO High Impedance tDIS 120 ns Rev. B | Page 5 of 16 Document Outline Features Applications General Description Application Diagram Table of Contents Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Terminology Typical Performance Characteristics Application Information Circuit Information Converter Operation Transfer Functions Typical Connection Diagram Analog Input Driver Amplifier Choice Voltage Reference Input Power Supply Supplying the ADC from the Reference Digital Interface Layout Evaluating the AD7694 Performance Outline Dimensions Ordering Guide