LTC1854/LTC1855/LTC1856 inTernal reFerence characTerisTicsThe l denotes the specifications which apply over the fulloperating temperature range, otherwise specifications are at TA = 25°C. (Note 5) PARAMETERCONDITIONSMINTYPMAXUNITS VREF Output Voltage IOUT = 0 l 2.475 2.50 2.525 V VREF Output Temperature Coefficient IOUT = 0 ±10 ppm/°C VREF Output Impedance –0.1mA ≤ IOUT ≤ 0.1mA 8 kΩ VREFCOMP Output Voltage IOUT = 0 4.096 V DigiTal inpuTs anD DigiTal ouTpuTsThe l denotes the specifications which apply over the fulloperating temperature range, otherwise specifications are at TA = 25°C. (Note 5) SYMBOLPARAMETERCONDITIONSMINTYPMAXUNITS VIH High Level Input Voltage VDD = 5.25V l 2.4 V VIL Low Level Input Voltage VDD = 4.75V l 0.8 V IIN Digital Input Current VIN = 0V to VDD l ±10 µA CIN Digital Input Capacitance 5 pF VOH High Level Output Voltage VDD = 4.75V, IO = –10µA, OVDD = VDD 4.74 V VDD = 4.75V, IO = –200µA, OVDD = VDD l 4 V VOL Low Level Output Voltage VDD = 4.75V, IO = 160µA, OVDD = VDD 0.05 V VDD = 4.75V, IO = 1.6mA, OVDD = VDD l 0.10 0.4 V IOZ Hi-Z Output Leakage VOUT = 0V to VDD, RD = High l ±10 µA COZ Hi-Z Output Capacitance RD = High 15 pF ISOURCE Output Source Current VOUT = 0V –10 mA ISINK Output Sink Current VOUT = VDD 10 mA power requiremenTsThe l denotes the specifications which apply over the full operating temperaturerange, otherwise specifications are at TA = 25°C. (Note 5) PARAMETERCONDITIONSMINTYPMAXUNITS Positive Supply Voltage (Notes 9 and 10) 4.75 5.00 5.25 V Positive Supply Current l 8.0 12 mA Nap Mode 5.5 7 mA Sleep Mode CONVST = 0V or 5V 8.0 13 µA Power Dissipation 40.0 mW Nap Mode 27.5 mW Sleep Mode CONVST = 0V or 5V 40.0 µW 185456fa 4 Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Typical Performance Characteristics Pin Functions Applications Information Package Description Typical Application Related Parts