Datasheet LTC2320-12 (Analog Devices) - 4

LTC2320-12
INTERNAL REFERENCE CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C (Note 4). SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VREFOUT1,2,3,4 Internal Reference Output Voltage 4.75V < VDD < 5.25V l 4.078 4.096 4.115 V 3.13V < VDD < 3.47V l 2.034 2.048 2.064 V VREF Temperature Coefficient (Note 14) l 3 20 ppm/°C REFOUT1,2,3,4 Output Impedance 0.25 Ω VREFOUT1,2,3,4 Line Regulation 4.75V < VDD < 5.25V 0.3 mV/V IREFOUT1,2,3,4 External Reference Current REFBUFEN = 0V REFOUT1,2,3,4 = 4.096V 385 μA REFOUT1,2,3,4 = 2.048V 204 μA (Notes 9, 10)
DIGITAL 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 4). SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS CMOS Digital Inputs and Outputs
CMOS/LVDS = GND VIH High Level Input Voltage l 0.8 • OVDD V VIL Low Level Input Voltage l 0.2 • OVDD V IIN Digital Input Current VIN = 0V to OVDD l –10 10 μA CIN Digital Input Capacitance l 5 pF VOH High Level Output Voltage IO = –500μA l OVDD – 0.2 V VOL Low Level Output Voltage IO = 500μA l 0.2 V IOZ Hi-Z Output Leakage Current VOUT = 0V to OVDD l –10 10 μA ISOURCE Output Source Current VOUT = 0V l –10 mA ISINK Output Sink Current VOUT = OVDD l 10 mA
LVDS Digital Inputs and Outputs
CMOS/LVDS = OVDD VID LVDS Differential Input Voltage 100Ω Differential Termination l 240 600 mV OVDD = 2.5V VIS LVDS Common Mode Input Voltage 100Ω Differential Termination l 1 1.45 V OVDD = 2.5V VOD LVDS Differential Output Voltage 100Ω Differential Termination l 220 350 600 mV OVDD = 2.5V VOS LVDS Common Mode Output Voltage 100Ω Differential Termination l 0.85 1.2 1.4 V OVDD = 2.5V VOD_LP Low Power LVDS Differential Output Voltage 100Ω Differential Termination l 100 200 350 mV OVDD = 2.5V VOS_LP Low Power LVDS Common Mode Output Voltage 100Ω Differential Termination l 0.85 1.2 1.4 V OVDD = 2.5V Rev B 4 For more information www.analog.com Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Converter Characteristics Internal Reference Characteristics Digital Inputs And Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Applications Information Package Description Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Internal Reference Characteristics Digital Inputs And Digital Outputs Power Requirements ADC Timing Characteristics ADC Timing Characteristics ADC Timing Characteristics Typical Performance Characteristics Pin Functions CMOS data output option (CMOS/LVDS = low) LVDS data output option (CMOS/LVDS = high or FLOAT) Functional Block Diagram Timing Diagram Applications Information OVERVIEW CONVERTER OPERATION TRANSFER FUNCTION INPUT DRIVE CIRCUITS ADC REFERENCE DYNAMIC PERFORMANCE POWER CONSIDERATIONS TIMING AND CONTROL DIGITAL INTERFACE BOARD LAYOUT Package Description Revision History Typical Application Related Parts