LTC2327-18 DynaMic accuracy The l denotes the specifications which apply over the full operating temperature range,otherwise specifications are at TA = 25°C and AIN = –1dBFS. (Notes 4, 8) SYMBOLPARAMETERCONDITIONSMINTYPMAXUNITS Aperture Jitter 4 psRMS Transient Response Full-Scale Step 0.5 µs inTernal reFerence characTerisTicsThe l denotes the specifications which apply over thefull operating temperature range, otherwise specifications are at TA = 25°C. (Note 4)SYMBOLPARAMETERCONDITIONSMINTYPMAXUNITS VREFIN Internal Reference Output Voltage 2.043 2.048 2.053 V VREFIN Temperature Coefficient (Note 14) l 2 20 ppm/°C REFIN Output Impedance 15 kΩ VREFIN Line Regulation VDD = 4.75V to 5.25V 0.08 mV/V REFIN Input Voltage Range (REFIN Overdriven) (Note 5) 1.25 2.4 V reFerence buFFer characTerisTicsThe l denotes the specifications which apply over the fulloperating temperature range, otherwise specifications are at TA = 25°C. (Note 4)SYMBOL PARAMETERCONDITIONSMINTYPMAXUNITS VREFBUF Reference Buffer Output Voltage VREFIN = 2.048V l 4.091 4.096 4.101 V REFBUF Input Voltage Range (REFBUF Overdriven) (Notes 5, 9) l 2.5 5 V REFBUF Output Impedance VREFIN = 0V 13 kΩ IREFBUF REFBUF Load Current VREFBUF = 5V (REFBUF Overdriven) (Notes 9, 10) l 0.64 0.7 mA VREFBUF = 5V, Nap Mode (REFBUF Overdriven) (Note 9) 0.39 mA DigiTal inpuTs anD DigiTal ouTpuTsThe l denotes the specifications which apply over thefull operating temperature range, otherwise specifications are at TA = 25°C. (Note 4)SYMBOLPARAMETERCONDITIONSMINTYPMAXUNITS 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 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 –10 mA ISINK Output Sink Current VOUT = OVDD 10 mA 232718fb 4 For more information www.linear.com/LTC2327-18 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 Functional Block Diagram Timing Diagram Applications Information Board Layout Package Description Revision History Typical Application Related Parts
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