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TMP421 Datasheet(PDF) 8 Page - Texas Instruments

Part # TMP421
Description  TMP42x-Q1 ±1°C Remote and Local Temperature Sensor
PDF  38 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

TMP421 Datasheet(HTML) 8 Page - Texas Instruments

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R (W)
S
2.0
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
0
3500
500
1000
1500
2000
2500
3000
V+=2.7V
V+=5.5V
3
2
1
0
-1
-2
-3
Capacitance(nF)
0
0.5
1.0
1.5
2.0
2.5
3.0
R
W
( )
S
2.0
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
0
3500
500
1000
1500
2000
2500
3000
V+=2.7V
V+=5.5V
60
40
20
0
-20
-40
-60
LeakageResistance(M )
W
0
5
10
15
20
25
30
R
GND
-
R
V+
-
AmbientTemperature,T (
A °C)
3
2
1
0
-1
-2
-3
-50
125
-25
0
25
50
75
100
50UnitsShown
V+=3.3V
3
2
1
0
-
1
-
2
-
3
AmbientTemperature,T ( C)
°
A
-
50
-
25
125
100
75
50
25
0
V+=3.3V
T
=+25 C
REMOTE
°
30TypicalUnitsShown
h
=1.008
8
TMP421-Q1, TMP422-Q1, TMP423-Q1
SBOS821 – NOVEMBER 2016
www.ti.com
Product Folder Links: TMP421-Q1 TMP422-Q1 TMP423-Q1
Submit Documentation Feedback
Copyright © 2016, Texas Instruments Incorporated
7.7 Typical Characteristics
at TA = 25°C and V+ = 5 V (unless otherwise noted)
Figure 2. Remote Temperature Error vs Temperature
Figure 3. Local Temperature Error vs Temperature
Figure 4. Remote Temperature Error vs Leakage Resistance
Figure 5. Remote Temperature Error vs Series Resistance
(Diode-Connected Transistor, 2N3906 PNP)
Figure 6. Remote Temperature Error vs Series Resistance
(GND Collector-Connected Transistor, 2N3906 PNP)
Figure 7. Remote Temperature Error vs Differential
Capacitance



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