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參數(shù)資料
| 型號： | TC7135CPI |
| 廠商： | TelCom Semiconductor, Inc. |
| 英文描述： | 4-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTER |
| 中文描述： | 4-1/2數(shù)字模擬到數(shù)字轉(zhuǎn)換器 |
| 文件頁數(shù)： | 11/13頁 |
| 文件大?。?/td> | 224K |
| 代理商： | TC7135CPI |
3-123
TELCOM SEMICONDUCTOR, INC.
7
6
5
4
3
1
2
8
TC7135
4-1/2 DIGIT
ANALOG-TO-DIGITAL CONVERTER
is disabled for one clock pulse at the beginning of the
reference integrate (deintegrate) phase. This one-count
delay compensates for the delay of the zero-crossing flip-
flop, and allows the correct number to be latched into the
display. Similarly, a one-count delay at the beginning of
auto-zero gives an overload display of 0000 instead of 0001.
No delay occurs during signal integrate, so true ratiometric
readings result.
Generating a Negative Supply
A negative voltage can be generated from the positive
supply by using a TC7660. (See Figure 9.)
TC7660
TC7135
11
1
+5V
8
2
3
(–5V)
V+
V–
24
10 μF
5
4
10 μF
+
+
Figure 9. Negative Supply Voltage Generator
TYPICAL APPLICATIONS
R2
R1
fO
GATES ARE 74C04
C
+5V
VOUT
390 pF
30 k
7
8
2
3
16 k
0.22
μ
F
16 k
4
1 k
1
+5V
VOUT
2
3
1
4
7
6
R2
100 k
R2
100 k
R3
50 k
C2
10 pF
R4
2 k
C1
0.1
μ
F
–
+
LM311
–
+
LM311
56 k
Comparator Clock Circuit
RC Oscillator Circuit
1. f
O
≈
, R
P
=
a. If R = R
1
= R
2
, f
0.55/RC
b. If R
2
>> R
1
, f
0.45/R
1
C
c. If R
2
<<
R
1
, f
0.72/R
1
C
2. Examples:
a. f = 120 kHz, C = 420 pF
R
1
= R
2
≈
10.9 k
b. f = 120 kHz, C = 420 pF, R
2
= 50 k
R
1
= 8.93 k
c. f = 120 kHz, C = 220 pF, R
2
= 5 k
R
1
= 27.3 k
1
2 C[0.41 R
P
+ 0.70 R
1
]
R
1
R
2
R
1
+ R
2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TC7136 | LOW POWER, 3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS |
| TC7136 | Low Power 3-1/2 Digit Analog-to-Digital Converter |
| TC7136A | Low Power 3-1/2 Digit Analog-to-Digital Converter |
| TC7136ACLW | Low Power 3-1/2 Digit Analog-to-Digital Converter |
| TC7136ACPI | Low Power 3-1/2 Digit Analog-to-Digital Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TC7135CPL | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:4-1/2 Digit A/D Converter |
| TC7136 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Low Power 3-1/2 Digit Analog-to-Digital Converter |
| TC7136A | 制造商:TELCOM 制造商全稱:TelCom Semiconductor, Inc 功能描述:LOW POWER, 3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS |
| TC7136ACKW | 功能描述:LCD 驅(qū)動器 Low Power RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
| TC7136ACKW713 | 功能描述:LCD 驅(qū)動器 Low Power RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
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