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| 型号： | TC7129CLW |
| 厂商： | Microchip Technology |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC ADC 4 1/2DGT LCD DVR 44-PLCC |
| 标准包装： | 27 |
| 显示器类型： | LCD |
| 配置： | 7 段显示 |
| 数字或字符： | A/D，4.5 位数字 |
| 电流 - 电源： | 800µA |
| 电源电压： | 6 V ~ 12 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-LCC（J 形引线） |
| 供应商设备封装： | 44-PLCC |
| 包装： | 管件 |
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TC7129
4-1/2 Digit Analog-to-Digital Converters with
On-Chip LCD Drivers
Features:
General Description:
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Count Resolution: ±19,999
Resolution on 200 mV Scale: 10 μ V
True Differential Input and Reference
Low Power Consumption: 500 μ A 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
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 μ V per count.
The TC7129 includes features important to multimeter
applications. It detects and indicates low battery condi-
Applications:
? Full-Featured Multimeters
? Digital Measurement Devices
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-
Device Selection Table
Package Pin
Package
Code Layout
Temperature
Range
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.
TC7129CPL
TC7129CKW
TC7129CLW
Normal
Formed
–
40-Pin PDIP
44-Pin PQFP
44-Pin PLCC
0 ° C to +70 ° C
0 ° C to +70 ° C
0 ° C to +70 ° C
Typical Application
Low Battery
Continuity
V+
5 pF
20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
TC7129
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
*
330 k Ω
120 kHz
+
9V
0.1 μF
1 μF
150 k Ω
10 k Ω
+
0.1
μF
20
k Ω
100 k Ω
0.1 μF
10 pF
V+
–
+
V IN
*Note: RC network between pins 26 and 28 is not required.
? 2006 Microchip Technology Inc.
DS21459D-page 1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TC7129CLW713 | 功能描述:LCD 驱动器 w/LCD Driver RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TC7129CPL | 功能描述:LCD 驱动器 w/LCD Driver RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TC7129CPL713 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers |
| TC7129IJL713 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers |
| TC7129IKW713 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers |
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