1°C Accurate Remote/Local Temperature
Sensor with SMBus Serial Interface
MAX6654
Typical Operating Characteristics
(V
CC
= +3.3V to +5.5V, T
A
= +25°C, unless otherwise noted.)
TEMPERATURE ERROR vs.
REMOTE-DIODE TEMPERATURE
FAIRCHILD 2N3904
MAX6654 toc01
TEMPERATURE ERROR vs.
POWER-SUPPLY NOISE FREQUENCY
MAX6654 toc02
TEMPERATURE ERROR vs.
COMMON-MODE NOISE FREQUENCY
MAX6654 toc03
2
16
V
IN
= 500mVp-p LOCAL
TEMPERATURE ERROR (°C)
12
V
IN
= 500mVp-p REMOTE
8
3
TEMPERATURE ERROR (°C)
1
TEMPERATURE ERROR (°C)
2
0
1
-1
4
-2
-50 -30 -10 10 30 50 70 90 110 130 150
TEMPERATURE (°C)
0
1
100
10k
FREQUENCY (Hz)
1M
100M
0
1k
100k
FREQUENCY (Hz)
10M
TEMPERATURE ERROR vs.
DXP-DXN CAPACITANCE
V
CC
= +5V
7
TEMPERATURE ERROR (°C)
6
5
4
3
2
1
0
0
10 20 30 40 50 60 70 80 90 100
DXP-DXN CAPACITANCE (nF)
MAX6654 toc04
STANDBY SUPPLY CURRENT vs.
SUPPLY VOLTAGE
MAX6654 toc05
8
100
STANDBY SUPPLY CURRENT (µA)
90
80
70
60
50
40
3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0
SUPPLY VOLTAGE (V)
4
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
