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TC7129CLW PDF预览

TC7129CLW

更新时间： 2024-11-18 22:42:27
品牌 Logo 应用领域
TELCOM 驱动器转换器
页数 文件大小 规格书
15页 213K
描述
4-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTER WITH ON-CHIP LCD DRIVERS

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中文翻译

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TC7129CLW 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：PLASTIC, LCC-44Reach Compliance Code：unknown
风险等级：5.72最大模拟输入电压：2 V
转换器类型：ADC, DUAL-SLOPEJESD-30 代码：S-PQCC-J44
JESD-609代码：e0标称负供电电压：-9 V
模拟输入通道数量：1功能数量：1
端子数量：44最高工作温度：70 °C
最低工作温度：输出位码：BINARY
封装主体材料：PLASTIC/EPOXY封装代码：QCCJ
封装等效代码：LDCC44,.7SQ封装形状：SQUARE
封装形式：CHIP CARRIER电源：9 V
认证状态：Not Qualified子类别：Analog to Digital Converters
标称供电电压：9 V表面贴装：YES
技术：CMOS温度等级：COMMERCIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：J BEND
端子节距：1.27 mm端子位置：QUAD
Base Number Matches：1

TC7129CLW 数据手册

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3
TC7129  
4-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTER  
WITH ON-CHIP LCD DRIVERS  
FEATURES  
GENERAL DESCRIPTION  
■ 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  
The TC7129 is a 4-1/2 digit analog-to-digital converter  
(ADC) that directly drives a multiplexed liquid crystal dis-  
play (LCD). Fabricated in high-performance, low-power  
CMOS, the TC7129 ADC is designed specifically for high-  
resolution, battery-powered digital multimeter applications.  
The traditional dual-slope method of A/D conversion has  
been enhanced with a successive integration technique to  
produce readings accurate 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 condition.  
Acontinuityoutputdrivesanannunciatoronthedisplay, and  
can be used with an external driver to sound an audible  
alarm. Overrange and underrange outputs and a range-  
change input provide the ability to create auto-ranging  
instruments. For snapshot readings, 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.  
ORDERING INFORMATION  
Pin  
Layout  
Temperature  
Range  
Part No.  
Package  
TC7129CKW  
TC7129CLW  
TC7129CPL  
Formed  
—
44-Pin PQFP  
44-Pin PLCC  
40-Pin PDIP  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
Normal  
TYPICAL OPERATING CIRCUIT  
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
120 kHz  
TC7129  
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40  
330 kΩ  
*
0.1 µF  
10 pF  
0.1  
+
µF  
20  
0.1 µF  
1 µF  
150 kΩ  
kΩ  
TC04  
+
V
10 kΩ  
+
100 kΩ  
9V  
+
–
V
IN  
NOTE:  
RC network between pins 26 and 28 is not required.  
*
TC7129-5 10/18/96  
TELCOM SEMICONDUCTOR, INC.  
3-231  
1234567...15

中文翻译

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