DS18B20-PAR 1-Wire Parasite-Power Digital Thermometer

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AC ELECTRICAL CHARACTERISTICSDS18B20-PAR(-55°C to +100°C; V PU =3.0V to 5.5V)PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTESTemperature Conversion t CONV 9-bit resolution 93.75 ms 1Time 10-bit resolution 187.5 ms 111-bit resolution 375 ms 112-bit resolution 750 ms 1Time to Strong PullupOnt SPONStart Convert T orCopy ScratchpadCommand Issued10 µsTime Slot t SLOT 60 120 µs 1Recovery Time t REC 1 µs 1Write 0 Low Time r LOW0 60 120 µs 1Write 1 Low Time t LOW1 1 15 µs 1Read Data Valid t RDV 15 µs 1Reset Time High t RSTH 480 µs 1Reset Time Low t RSTL 480 960 µs 1,2Presence Detect High t PDHIGH 15 60 µs 1Presence Detect Low t PDLOW 60 240 µs 1Capacitance C IN/OUT 25 pFNOTES:1. Refer to timing diagrams in Figure 17.2. If t RSTL > 960 s, a power on reset may occur.TYPICAL PERFORMANCE CURVE Figure 16DS18B20-PAR Typical Error Curve0.50.4Thermometer Error (C)0.3+3 Error0.20.100 10 20 30 40 50 60 70-0.1-0.2Mean Error-0.3-0.4-0.5Reference Temp (C)-3 Error18 of 19
TIMING DIAGRAMS Figure 17DS18B20-PAR19 of 19
Page 1: FEATURES Unique 1-Wire ® interface
Page 4 and 5: DS18B20-PARresolution, bits 1 and 0
Page 6 and 7: DS18B20-PAR MEMORY MAP Figure 6DS18
Page 8 and 9: DS18B20-PARHARDWARE CONFIGURATION F
Page 10 and 11: DS18B20-PARtransmitted least signif
Page 12 and 13: DS18B20-PAR FUNCTION COMMANDS FLOW
Page 14 and 15: DS18B20-PARThe DS18B20-PAR samples
Page 16 and 17: DS18B20-PARMASTER MODE DATA (LSB FI

DS18B20-PAR 1-Wire Parasite-Power Digital Thermometer

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