Datasheet

DS18S20-PAR
19 of 20
AC ELECTRICAL CHARACTERISTICS (-55°C to +100°C; V
PU
=3.0V to 5.5V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
Temperature Conversion
Time
t
CONV
750 ms 1
Time to Strong Pullup
On
t
SPON
Start Convert T or
Copy Scratchpad
Command Issued
10 µs
Time Slot t
SLOT
60 120 µs 1
Recovery Time t
REC
1µs1
Write 0 Low Time r
LOW0
60 120 µs 1
Write 1 Low Time t
LOW1
115µs1
Read Data Valid t
RDV
15 µs 1
Reset Time High t
RSTH
480 µs 1
Reset Time Low t
RSTL
480 960 µs 1,2
Presence Detect High t
PDHIGH
15 60 µs 1
Presence Detect Low t
PDLOW
60 240 µs 1
Capacitance C
IN/OUT
25 pF
NOTES:
1. Refer to timing diagrams in Figure 16.
2. If t
RSTL
> 960 ms, a power on reset may occur.
TYPICAL PERFORMANCE CURVE Figure 15
DS18S20-PAR Typical Error Curve
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
0 10203040506070
Reference Temp (°C)
Thermometer Error (°C)
Mean Error
+3s Error
-3s Error