TMP431_15 Datasheet, PDF (7/42 Pages) Texas Instruments – ±1°C Temperature Sensor with Series-R, η-Factor, and Automatic Beta Compensation

TMP431
TMP432
www.ti.com
SBOS441F – SEPTEMBER 2009 – REVISED AUGUST 2013
TYPICAL CHARACTERISTICS (continued)
At T_A = +25°C and V_S = 3.3V, unless otherwise noted.
REMOTE TEMPERATURE ERROR vs SERIES RESISTANCE
3
GND Collector-Connected Transistor, 2N3906 (PNP)⁽¹⁾⁽²⁾
2
REMOTE TEMPERATURE ERROR vs SERIES RESISTANCE
(Low-Beta Transistor)
2.5
2.0
1.5
1
1.0
0.5
0
(2)
Diode-Connected Transistor, 2N3906 (PNP)
-1
NOTES (1): Temperature offset is the result of
-2 ^{h-factor being automatically set to 1.000.}
Approximate h-factor of 2N3906 is 1.008.
(2) See Figure 11 for schematic configuration.
-3
0 100 200 300 400 500 600 700 800 900 1k
R_S (W)
Figure 7.
0
-0.5
-1.0
-1.5
-2.0
-2.5
0
100
200
300
400
500
R_S (W)
Figure 8.
REMOTE TEMPERATURE ERROR
vs DIFFERENTIAL CAPACITANCE
AT +25°C, V_CC = 3.3V, R_S = 0Ω
3
GND Collector-Connected Transistor (Auto)
2
1 ^{Low-Beta Transistor (Disabled)}
0
GND Collector-
Connected
Transistor (Disabled)
-1
Diode-Connected
Transistor (Auto, Disabled)
-2
-3
0
NOTE: See Figure 12 for schematic configuration.
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2
Capacitance (nF)
Figure 9.
REMOTE TEMPERATURE ERROR
vs DIFFERENTIAL CAPACITANCE with 45nm CPU
AT +25°C, V_CC = 3.3V, R_S = 0Ω, Beta = 011 (AUTO)
3
2
1
0
Low-Beta Transistor (Auto)
-1
-2
-3
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2
Capacitance (nF)
Figure 10.
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