TC7129CPL

更新时间： 2024-11-22 22:42:27

品牌	Logo	应用领域
美国微芯 - MICROCHIP		驱动器转换器光电二极管
页数	文件大小	规格书
24页	550K
描述
4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers

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中文翻译

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TC7129CPL 数据手册

TC7129

4-1/2 Digit Analog-to-Digital Converters with

On-Chip LCD Drivers

Features

General Description

• Count Resolution: ±19,999

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 10µV per count.

• Resolution on 200mV Scale: 10µV

• True Differential Input and Reference

• Low Power Consumption: 500µA at 9V

• Direct LCD Driver for 4-1/2 Digits, Decimal Points,

Low Battery Indicator, and Continuity Indicator

• Over Range and Under Range Outputs

• Range Select Input: 10:1

• High Common Mode Rejection Ratio: 110dB

• External Phase Compensation Not Required

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. Over range and under range

outputs and 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.

Applications

• Full Featured Multimeters

• Digital Measurement Devices

Device Selection Table

Package

Code

Layout

Temperature

Range

Package

TC7129CPL

Normal

40-Pin PDIP

44-Pin PQFP

44-Pin PLCC

0°C to +70°C

TC7129CKW Formed

TC7129CLW

–

Typical Application

Low Battery

Continuity

V+

5pF

20 19 18 17 16 15 14 13 12 11 10

TC7129

120kHz

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

330kΩ

0.1µF

10pF

0.1

µF

0.1µF

1µF

150kΩ

kΩ

V+

10kΩ

100kΩ

*Note: RC network between Pins 26 and 28 is not required.

–

2002 Microchip Technology Inc.

DS21459B-page 1

12 3 4 5 6 7...24

中文翻译

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TC7129CPL 替代型号

型号	品牌	替代类型	描述	数据表
TC7106CPL	MICROCHIP	类似代替	3-1/2 Digit Analog-to-Digital Converters
TC7117ACPL	MICROCHIP	类似代替	3-1/2 Digit Analog-to-Digital Converters with Hold
TC7106ACPL	MICROCHIP	类似代替	3-1/2 Digit Analog-to-Digital Converters

与TC7129CPL相关器件

型号	品牌	获取价格	描述	数据表
TC7129CPL713	MICROCHIP	获取价格	4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers
TC7129IJL	MICROCHIP	获取价格	1-CH DUAL-SLOPE ADC, CDIP40, CERAMIC, DIP-40
TC7129IJL713	MICROCHIP	获取价格	4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers
TC7129IKW713	MICROCHIP	获取价格	4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers
TC7129ILW713	MICROCHIP	获取价格	4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers
TC7129IPL	MICROCHIP	获取价格	1-CH DUAL-SLOPE ADC, PDIP40, 0.600 INCH, MO-011, PLASTIC, DIP-40
TC7129IPL713	MICROCHIP	获取价格	4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers
TC7135	TELCOM	获取价格	4-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTER
TC7135	MICROCHIP	获取价格	4-1/2 Digit A/D Converter
TC7135_04	MICROCHIP	获取价格	4-1/2 Digit A/D Converter

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