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參數資料
| 型號： | TC7129CLWTR |
| 元件分類： | ADC |
| 英文描述： | 1-CH 4-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQCC44 |
| 封裝： | PLASTIC, MO-047, LCC-44 |
| 文件頁數： | 1/28頁 |
| 文件大小： | 544K |
| 代理商： | TC7129CLWTR |
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2006 Microchip Technology Inc.
DS21459D-page 1
TC7129
Features:
Count Resolution: ±19,999
Resolution on 200 mV Scale: 10
μV
True Differential Input and Reference
Low Power Consumption: 500
μA at 9V
Direct LCD Driver for 4-1/2 Digits, Decimal Points,
Low Battery Indicator, and Continuity Indicator
Overrange and Underrange Outputs
Range Select Input: 10:1
High Common Mode Rejection Ratio: 110 dB
External Phase Compensation Not Required
Applications:
Full-Featured Multimeters
Digital Measurement Devices
Device Selection Table
General Description:
The TC7129 is a 4-1/2 digit Analog-to-Digital Converter
(ADC) that directly drives a multiplexed Liquid Crystal
Display (LCD). Fabricated in high-performance, low-
power CMOS, the TC7129 ADC is designed specifi-
cally for high-resolution, battery-powered digital multi-
meter applications. The traditional dual-slope method
of A/D conversion has been enhanced with a succes-
sive integration technique to produce readings accu-
rate to better than 0.005% of full-scale and resolution
down to 10
μV per count.
The TC7129 includes features important to multimeter
applications. It detects and indicates low battery condi-
tion. A continuity output drives an annunciator on the
display and can be used with an external driver to sound
an audible alarm. Overrange and underrange outputs,
along with a range-change input, provide the ability to
create auto-ranging instruments. For snapshot read-
ings, the TC7129 includes a latch-and-hold input to
freeze the present reading. This combination of features
makes the TC7129 the ideal choice for full-featured
multimeter and digital measurement applications.
Typical Application
Package
Code
Pin
Layout
Package
Temperature
Range
TC7129CPL
Normal
40-Pin PDIP
0
°C to +70°C
TC7129CKW
Formed
44-Pin PQFP
0
°C to +70°C
TC7129CLW
–
44-Pin PLCC
0
°C to +70°C
TC7129
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
9V
+
Low Battery
Continuity
V+
5 pF
120 kHz
10 pF
0.1 F
20
k
Ω
0.1
F
100 k
Ω
1 F
0.1 F
150 k
Ω
10 k
Ω
V+
VIN
–
+
*
*N
ote: RC network between pins 26 and 28 is not required.
330 k
Ω
4-1/2 Digit Analog-to-Digital Converters with
On-Chip LCD Drivers
相關PDF資料 |
PDF描述 |
|---|---|
| TC7129CJL | 1-CH DUAL-SLOPE ADC, CDIP40 |
| TC7129IKW | 1-CH DUAL-SLOPE ADC, PQFP44 |
| TC7129ILW | 1-CH DUAL-SLOPE ADC, PQCC44 |
| TC7129IPL | 1-CH DUAL-SLOPE ADC, PDIP40 |
| TC7129CPL | 1-CH 4-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PDIP40 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TC7129CPL | 功能描述:LCD 驅動器 w/LCD Driver RoHS:否 制造商:Maxim Integrated 數位數量:4.5 片段數量: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 |
| TC7129CPL713 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers |
| TC7129IJL713 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers |
| TC7129IKW713 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers |
| TC7129ILW713 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers |
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