Datasheet > DSTEMPCKW713

DSTEMPCKW713

更新时间： 2024-11-18 12:52:31

品牌	Logo	应用领域
美国微芯 - MICROCHIP		驱动器转换器
页数	文件大小	规格书
28页	452K
描述
4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers

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DSTEMPCKW713 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 10 V per count.

• Resolution on 200 mV Scale: 10 V

• True Differential Input and Reference

• Low Power Consumption: 500 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 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.

Applications:

• Full-Featured Multimeters

• Digital Measurement Devices

Device Selection Table

Package

Code

Layout

Temperature

Range

Package

TC7129CPL

Normal

40-Pin PDIP

44-PinPQFP

44-PinPLCC

0C to +70C

TC7129CKW Formed

TC7129CLW

–

Typical Application

Low Battery

Continuity

V+

5 pF

20 19 18 17 16 15 14 13 12 11 10

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

V+

0.1

µF

kΩ

0.1 µF

1 µF

150 kΩ

10 kΩ

100 kΩ

–

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

 2002-2012 Microchip Technology Inc.

DS21459E-page 1

12 3 4 5 6 7...28

中文翻译

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与DSTEMPCKW713相关器件

型号	品牌	获取价格	描述	数据表
DSTEMPCLW	MICROCHIP	获取价格	4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers
DSTEMP-E/SN	MICROCHIP	获取价格	2K 5.0V I2C Serial EEPROM
DSTEMP-I/ML	MICROCHIP	获取价格	Parallel I/O Port
DSTEMP-I/MNY	MICROCHIP	获取价格	2K 5.0V I2C Serial EEPROM
DSTEMP-I/P	MICROCHIP	获取价格	2K 5.0V I2C Serial EEPROM
DSTEMP-I/SL	MICROCHIP	获取价格	SPECIALTY CONSUMER CIRCUIT, PDSO14, 3.90 MM, LEAD FREE, PLASTIC, SOIC-14
DSTEMP-I/SS	MICROCHIP	获取价格	Parallel I/O Port
DSTEMP-I/ST	MICROCHIP	获取价格	SPECIALTY CONSUMER CIRCUIT, PDSO14, 4.40 MM, PLASTIC, TSSOP-14
DSTEMP-IML	MICROCHIP	获取价格	16-Bit I2C I/O Expander
DSTEMP-IP	MICROCHIP	获取价格	16-Bit I2C I/O Expander

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