TC7135CLITR

更新时间： 2024-11-19 13:00:39

品牌	Logo	应用领域
美国微芯 - MICROCHIP		转换器
页数	文件大小	规格书
22页	533K
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中文翻译

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数据手册

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TC7135CLITR 数据手册

TC7135

4-1/2 Digit A/D Converter

Features

General Description

• Low Rollover Error: ±1 Count Max

• Nonlinearity Error: ±1 Count Max

• Reading for 0V Input

The TC7135 4-1/2 digit A/D converter (ADC) offers

50ppm (1 part in 20,000) resolution with a maximum

nonlinearity error of 1 count. An auto zero cycle

reduces zero error to below 10µV and zero drift to

0.5µV/°C. Source impedance errors are minimized by

a 10pA maximum input current. Rollover error is limited

to ±1 count.

• True Polarity Indication at Zero for Null Detection

• Multiplexed BCD Data Output

• TTL-Compatible Outputs

• Differential Input

Microprocessor based measurement systems are sup-

ported by BUSY, STROBE and RUN/HOLD control sig-

nals. Remote data acquisition systems with data

transfer via UARTs are also possible. The additional

control pins and multiplexed BCD outputs make the

TC7135 the ideal converter for display or

microprocessor based measurement systems.

• Control Signals Permit Interface to UARTs and

Microprocessors

• Blinking Display Visually Indicates Overrange

Condition

• Low Input Current: 1pA

• Low Zero Reading Drift: 2µV/°C

• Auto-Ranging Supported with Overrange and

Underrange Signals

Functional Block Diagram

–5V

TC7135

SET V

= 1V

• Available in PDIP and Surface-Mount Packages

REF

V-

Applications

UNDERRANGE

OVERRANGE

100kΩ

REF IN

• Precision Analog Signal Processor

• Precision Sensor Interface

ANALOG

STROBE

COMMON

Analog GND

0.47µF

RUN/HOLD

INT OUT

• High Accuracy DC Measurements

1µF

DIGTAL GND

POLARITY

CLOCK IN

BUSY

AZ IN

Device Selection Table

BUFF OUT

100kΩ

Clock

Input

REF

100

Signal

Input

Part Number

Package

Temperature Range

1µF

kΩ

120kHz

TC7135CLI

TC7135CPI

TC7135CBU

28-PinPLCC

28-Pin PDIP

64-PinPQFP

0°C to +70°C

-INPUT

(LSD) D1

0.1µF

+INPUT

V+

D5 (MSD)

B1 (LSB)

(MSB) B8

2002 Microchip Technology Inc.

DS21460B-page 1

12 3 4 5 6 7...22

中文翻译

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