參數資料
型號: TC7126IPL
廠商: Microchip Technology Inc.
英文描述: 3-1/2 Digit Analog-to-Digital Converters
中文描述: 3-1/2數字模擬數字轉換器
文件頁數: 12/13頁
文件大小: 198K
代理商: TC7126IPL
3-228
TELCOM SEMICONDUCTOR, INC.
3-1/2 DIGIT
ANALOG-TO-DIGITAL CONVERTERS
TC7126
TC7126A
8
2.2
μF
14
7
13
12
11
10
9
1
2
3
4
5
6
TC7126A
V+
REF
V–
REF
ANALOG
COMMON
V+
IN
9V
+
VIN
9 M
900 k
90 k
10 k
2V
20V
200V
200 mV
1N4148
10 M
1 M
0.02
μF
1 M
10%
47 k
1W
10%
20 k
10%
6.8 μF
1 μF
COM
C1 = 3 pF TO 10 pF, VARIABLE
C2 = 132 pF, VARIABLE
+
+
AD636
0.01
μF
10 k
240 k
SEGMENT
DRIVE
LCD
39
40
28
27
38
29
26
V–
1
35
32
31
30
26
36
BP
V+
V+
OUT
V–
C1
C2
Figure 9. Decimal Point and Annunciator Drives
Figure 11. 3-1/2 Digit True RMS AC DMM
V
REF
V
REF
+
V
IN
+
V
IN
ANALOG
COMMON
TC7126A
LCD
R
STANDARD
R
UNKNOWN
V+
TC7126A
DECIMAL
POINT
SELECT
V+
V+
TEST
GND
4030
TO LCD
DECIMAL
POINTS
BP
TC7126A
BP
TEST37
21
V+
V+
GND
TO LCD
DECIMAL
POINT
TO
BACKPLANE
4049
Multiple Decimal Point or
Annunciator Driver
Simple Inverter for Fixed Decimal Point
or Display Annunciator
Figure 10. Low Parts Count Ratiometric Resistance Measurement
相關PDF資料
PDF描述
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