參數(shù)資料
型號(hào): TLV320AIC29IRGZR
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQCC48
封裝: 7 X 7 MM, GREEN, PLASTIC, QFN-48
文件頁數(shù): 30/87頁
文件大?。?/td> 1051K
代理商: TLV320AIC29IRGZR
TLV320AIC29
SLAS494B DECEMBER 2005 REVISED OCTOBER 2007
www.ti.com
36
a few millivolts. The temperature coefficient of this voltage is typically 2 mV/
°C. During the final test of the end
product, the diode voltage at a known room temperature should be stored in nonvolatile memory. Further
calibration can be done to calculate the precise temperature coefficient of the particular. This method has a
temperature resolution of approximately 0.3
°C/LSB and accuracy of approximately ±2°C with two-temperature
calibration. Figure 26 and Figure 27 shows typical plots with single and two-temperature calibration
respectively.
TEMP0
TEMP1
Temperature Select
X+
MUX
A/D
Converter
Figure 25. Functional Block Diagram of Temperature Measurement Mode
10
8
6
4
2
0
2
4
6
8
10
40
20
0
20
40
60
80
100
Error
in
Measurement
TA Free-Air Temperature 5C
C
°
Figure 26. Typical Plot of Single Measurement Method After Calibrating for Offset at Room Temperature
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