Datasheet

DS2781
3 of 31
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Voltage Full-Scale V
FS
0 9.9902 V
Voltage Error V
ERR
±100 mV
Current Resolution I
LSB
1.56 µV
Current Full-Scale I
FS
±51.2 mV
Current Gain Error I
GERR
(Note 2) ±1
% Full-
Scale
Current Offset Error I
OERR
0°C ≤ T
A
≤ +70°C,
(Note 4)
- 7.82 + 12.5
μV
Accumulated Current Offset q
OERR
0°C ≤ T
A
≤ +70°C,
V
SNS
= V
SS
(Notes 3, 4)
- 188 + 0
μVhr/
day
T
A
= +25°C, V
DD
= 7.6V ±1
Timebase Error t
ERR
±2
%
ELECTRICAL CHARACTERISTICS: 1-WIRE INTERFACE, STANDARD
(V
DD
= 2.5V to 10V, T
A
= -20°C to +70°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Time Slot t
SLOT
60 120
μs
Recovery Time t
REC
1
μs
Write-0 Low Time t
LOW0
60 120
μs
Write-1 Low Time t
LOW1
1 15
μs
Read Data Valid t
RDV
15
μs
Reset Time High t
RSTH
480
μs
Reset Time Low t
RSTL
480 960
μs
Presence Detect High t
PDH
15 60
μs
Presence Detect Low t
PDL
60 240
μs
ELECTRICAL CHARACTERISTICS: 1-Wire INTERFACE, OVERDRIVE
(V
DD
= 2.5V to 10V, T
A
= -20°C to +70°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Time Slot t
SLOT
6 16
μs
Recovery Time t
REC
1
μs
Write-0 Low Time t
LOW0
6 16
μs
Write-1 Low Time t
LOW1
1 2
μs
Read Data Valid t
RDV
2
μs
Reset-Time High t
RSTH
48
μs
Reset-Time Low t
RSTL
48 80
μs
Presence-Detect High t
PDH
2 6
μs
Presence-Detect Low t
PDL
8 24
μs