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MAX6648 Datasheet(PDF) 4 Page - Maxim Integrated Products

Part No. MAX6648
Description  Precision SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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Precision SMBus-Compatible Remote/Local
Temperature Sensors with Overtemperature Alarms
4
_______________________________________________________________________________________
Typical Operating Characteristics
(VCC = 3.3V, TA = +25°C, unless otherwise noted.)
STANDBY SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
5.0
4.5
4.0
3.5
2.8
3.2
3.6
4.0
2.4
3.0
5.5
OPERATING SUPPLY CURRENT
vs. CONVERSION RATE
CONVERSION RATE (Hz)
4.00
2.00
1.00
0.50
0.25
0.13
100
200
300
400
500
600
0
0.63
REMOTE TEMPERATURE ERROR
vs. REMOTE-DIODE TEMPERATURE
TEMPERATURE (
°C)
100
75
50
25
-1.5
-0.5
0.5
1.5
2.5
-2.5
0
125
TA = +85
°C
FAIRCHILD 2N3906
LOCAL TEMPERATURE ERROR
vs. DIE TEMPERATURE
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
TEMPERATURE (
°C)
100
75
50
25
0
125
TEMPERATURE ERROR
vs. POWER-SUPPLY NOISE FREQUENCY
FREQUENCY (Hz)
10k
1k
1
10
100
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0
0.1
100k
LOCAL ERROR
REMOTE ERROR
VIN = SQUARE WAVE APPLIED TO VCC
WITH NO 0.1
µF VCC CAPACITOR
-1
0
1
2
3
4
5
6
7
8
9
-2
TEMPERATURE ERROR
vs. COMMON-MODE NOISE FREQUENCY
FREQUENCY (Hz)
100k
10k
10
100
1k
1
REMOTE ERROR
LOCAL ERROR
VIN = AC-COUPLED TO DXN
VIN = 100mVP-P
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
2.0
-2.0
TEMPERATURE ERROR
vs. DIFFERENTIAL-MODE NOISE FREQUENCY
FREQUENCY (Hz)
100k
10k
10
100
1k
1
VIN = 20mVP-P SQUARE WAVE
APPLIED TO DXP-DXN
TEMPERATURE ERROR
vs. DXP-DXN CAPACITANCE
DXP-DXN CAPACITANCE (nF)
10.000
1.000
-5
-4
-3
-2
-1
0
1
-6
0.100
100.000




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