Datasheet LTC2480 (Analog Devices) - 5

LTC2480
ANALOG INPUTS AND DIGITAL OUTPUTS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IIN Digital Input Current SCK 0V ≤ VIN ≤ VCC (Note 10) l –10 10 µA CIN Digital Input Capacitance CS, fO, SDI 10 pF CIN Digital Input Capacitance SCK 10 pF VOH High Level Output Voltage SDO IO = –800µA l VCC – 0.5 V VOL Low Level Output Voltage SDO IO = 1.6mA l 0.4 V VOH High Level Output Voltage SCK IO = –800µA l VCC – 0.5 V VOL Low Level Output Voltage SCK IO = 1.6mA l 0.4 V IOZ Hi-Z Output Leakage SDO l –10 10 µA
POWER REQUIREMENTS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VCC Supply Voltage l 2.7 5.5 V ICC Supply Current Conversion Mode (Note 12) l 160 250 µA Sleep Mode (Note 12) l 1 2 µA H-Grade l 20 µA
TIMING CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
fEOSC External Oscillator Frequency Range (Note 15) l 10 1000 kHz tHEO External Oscillator High Period l 0.125 100 µs tLEO External Oscillator Low Period l 0.125 100 µs tCONV_1 Conversion Time for 1x Speed Mode 50Hz Mode l 157.2 160.3 163.5 ms 50Hz Mode (H-Grade) l 157.2 160.3 165.1 ms 60Hz Mode l 131.0 133.6 136.3 ms 60Hz Mode (H-Grade) l 131.0 133.6 137.6 ms Simultaneous 50Hz/60Hz Mode l 144.1 146.9 149.9 ms Simultaneous 50Hz/60Hz Mode (H-Grade) l 144.1 146.9 151.0 ms External Oscillator l 41036/fEOSC (in kHz) ms tCONV_2 Conversion Time for 2x Speed Mode 50Hz Mode l 78.7 80.3 81.9 ms 50Hz Mode (H-Grade) l 82.7 ms 60Hz Mode l 65.6 66.9 68.2 ms 60Hz Mode (H-Grade) l 68.9 ms Simultaneous 50Hz/60Hz Mode l 72.2 73.6 75.1 ms Simultaneous 50Hz/60Hz Mode (H-Grade) l 75.6 ms External Oscillator l 20556/fEOSC (in kHz) ms fISCK Internal SCK Frequency Internal Oscillator (Note 10) 38.4 kHz External Oscillator (Notes 10, 11) fEOSC/8 kHz DISCK Internal SCK Duty Cycle (Note 10) l 45 55 % fESCK External SCK Frequency Range (Note 10) l 4000 kHz 2480fe For more information www.linear.com/LTC2480 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics (Normal Speed) Electrical Characteristics (2X Speed) Converter Characteristics Analog Input and Reference Analog Inputs and Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuits Timing Diagrams Applications Information Package Description Revision History Typical Application Related Parts