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DS2740
 
15 of 16
 
 
ABSOLUTE MAXIMUM RATINGS*
Voltage on V
DD
, DQ, IS1, IS2, PIO, Relative to V
SS
 
 
-0.3V to +6V
Voltage on SNS, Relative to V
SS
     
 
 
 
-0.3V to +6V
Operating Temperature Range
 
 
 
 
-40癈 to +85癈
Storage Temperature Range
 
 
 
 
-55癈 to +125癈
Soldering Temperature
See IPC/JEDECJ-STD-020A
 
* This is a stress rating only and functional operation of the device at these or any other conditions above
those indicated in the operation sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods of time may affect reliability.
 
RECOMMENDED DC OPERATING CONDITIONS
(2.7V d V
DD
 d 5.5V; T
A
 = 0癈 to +70癈.) 
PARAMETER
SYMBOL
CONDITIONS
MIN     TYP     MAX     UNITS
Supply Voltage
V
DD
(Note 1)
2.7
 
5.5
V
Data Pin
DQ
(Note 1)
-0.3
 
+5.5
V
 
DC ELECTRICAL CHARACTERISTICS
 
(2.7V d V
DD
 d 4.2V; T
A
 = 0癈 to +70癈.) 
PARAMETER
SYMBOL
CONDITIONS
MIN     TYP     MAX     UNITS
 
 
50
65
Active Current
I
ACTIVE
V
DD
= 5.5V
 
 
85
糀
V
DD
= 2.0V,
DQ = PIO = V
SS
 
0.6
1.0
Sleep-Mode Current
I
SLEEP
V
DD
= 4.2V,
DQ = PIO = V
SS
 
0.9
1.25
糀
Undervoltage Sleep
Threshold
V
UV
 
2.3
2.5
2.7
V
DS2740U
 
1.5625
 
Current Resolution
I
LSB
DS2740BU
 
6.25
 
糣/R
SNS
Current Full-Scale
Magnitude
I
FS
 
 
51.2
 
mV/R
SNS
DS2740U (Note 2)
-3
+1
+5
Current Measurement
Offset (Auto
Calibrated)
I
OERR
DS2740BU (Note 2)
-2
0
+2
LSb
Current Gain Error
I
GERR
 
-1
 
+1
% of
reading
Accumulated Current
Resolution
q
CA
 
 
6.25
 
糣h
Current Sample Clock
Frequency
f
SAMP
 
 
18.6
 
kHz
V
DD
= 3.5V at +25癈
-1
 
+1
Timebase Accuracy
t
ERR
 
-4
 
+4
%
Input Logic High:
OVD
V
IH
(Note 1)
V
DD
-
0.2V
 
 
V
Input Logic High: DQ,
PIO
V
IH
(Note 1)
1.5
 
 
V
Input Logic Low:
OVD
V
IL
(Note 1)
 
 
V
SS
 +
0.2
V
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