LM75A_4
?NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 04  10 July 2007
15 of 24
NXP Semiconductors
LM75A
Digital temperature sensor and thermal watchdog
11. Static characteristics
[1]   Typical values are at V
CC
= 3.3 V and T
amb
= 25 癈.
[2]   Conv = device A-to-D conversion.
Table 17.   Static characteristics
V
CC
= 2.8 V to 5.5 V; T
amb
= 55 癈 to +125 癈; unless otherwise specied.
Symbol
Parameter
Conditions
Min
Typ
[1]
Max
Unit
T
ACC
temperature accuracy
T
amb
 = 25 癈 to +100 癈
2
-
+2
T
amb
 = 55 癈 to +125 癈
3
-
+3
T
res
temperature resolution
11-bit digital temp data
-
0.125
-
T
CONV(T)
temperature conversion
time
normal mode
-
100
-
ms
I
DD
supply current
normal mode: I
2
C-bus inactive
-
100
-
normal mode: I
2
C-bus active
-
-
1.0
mA
shutdown mode
-
3.5
-
V
IH
HIGH-level input voltage    digital pins (SCL, SDA, A2 to A0)
0.7 ?V
CC
-
V
CC
+ 0.3    V
V
IL
LOW-level input voltage
digital pins
0.3
-
0.3 ?V
CC
V
V
IHYS
input voltage hysteresis
SCL and SDA pins
-
300
-
mV
A2, A1, A0 pins
-
150
-
mv
I
IH
HIGH-level input current
digital pins; V
I
= V
CC
1.0
-
+1.0
I
IL
LOW-level input current
digital pins; V
I
 = 0 V
1.0
-
+1.0
V
OL
LOW-level output voltage   SDA and OS pins; I
OL
= 3 mA
-
-
0.4
V
I
OL
= 4 mA
-
-
0.8
V
I
LO
output leakage current
SDA and OS pins; V
OH
= V
CC
-
-
10
OSQ
OS fault queue
programmable
1
-
6
Conv
[2]
T
os
overtemperature
shutdown threshold
default value
-
80
-
T
hyst
hysteresis temperature
default value
-
75
-
C
i
input capacitance
digital pins
-
20
-
pF
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