DS1822-PAR
AC ELECTRICAL CHARACTERISTICS:
(-55°C to +100°C; V PU = 3.0V to 5.5V)
PARAMETER SYMBOL
Temperature Conversion
t CONV
Time
CONDITION
9-bit resolution
10-bit resolution
MIN
TYP
MAX
93.75
187.5
UNITS NOTES
ms 1
ms 1
11-bit resolution
12-bit resolution
375
750
ms 1
ms 1
Time to Strong Pullup
t SPON
Start Convert T
10
μs
On
Command Issued
Time Slot
Recovery Time
Write 0 Low Time
Write 1 Low Time
t SLOT
t REC
r LOW0
t LOW1
60
1
60
1
120
120
15
μs
μs
μs
μs
1
1
1
1
Read Data Valid
Reset Time High
t RDV
t RSTH
480
15
μs
μs
1
1
Reset Time Low
Presence Detect High
Presence Detect Low
Capacitance
t RSTL
t PDHIGH
t PDLOW
C IN/OUT
480
15
60
960
60
240
25
μs
μs
μs
pF
1,2
1
1
NOTES:
1. Refer to timing diagrams in Figure 16.
2. If t RSTL > 960 μ s, a power on reset may occur.
TYPICAL PERFORMANCE CURVE Figure 15
DS1822-PAR Typical Performance Curve
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
-1.2
+3s Error
Mean Error
-3s Error
-10
0
10
20
30 40 50
60
70
80
Temperature (°C)
18 of 19
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