TC7135 datasheet(1/22 Pages) MICROCHIP

tên linh kiện	TC7135

Giải thích chi tiết về linh kiện	4-1/2 Digit A/D Converter

PDF	22 Pages

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nhà sản xuất	MICROCHIP [Microchip Technology]

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DS21460B-page 1

TC7135

Features

• Low Rollover Error: ±1 Count Max

• Nonlinearity Error: ±1 Count Max

• Reading for 0V Input

• True Polarity Indication at Zero for Null Detection

• Multiplexed BCD Data Output

• TTL-Compatible Outputs

• Differential Input

• Control Signals Permit Interface to UARTs and

Microprocessors

• Blinking Display Visually Indicates Overrange

Condition

• Low Input Current: 1pA

• Low Zero Reading Drift: 2

µV/°C

• Auto-Ranging Supported with Overrange and

Underrange Signals

• Available in PDIP and Surface-Mount Packages

Applications

• Precision Analog Signal Processor

• Precision Sensor Interface

• High Accuracy DC Measurements

Device Selection Table

General Description

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 10

µV and zero drift to

0.5

µV/°C. Source impedance errors are minimized by

a 10pA maximum input current. Rollover error is limited

to ±1 count.

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.

Functional Block Diagram

Part Number

Package

Temperature Range

TC7135CLI

28-Pin PLCC

0

°Cto +70°C

TC7135CPI

28-Pin PDIP

0

°Cto +70°C

TC7135CBU

64-Pin PQFP

0

°Cto +70°C

TC7135

1

2

3

4

5

6

7

8

9

10

11

12

13

14

28

27

26

25

24

23

22

21

20

19

18

17

16

15

100k

Ω

Analog GND

100

k

Ω

Signal

Input

0.1

µF

SET VREF = 1V

V-

REF IN

ANALOG

COMMON

INT OUT

AZ IN

BUFF OUT

CREF-

CREF+

-INPUT

+INPUT

D5 (MSD)

B1 (LSB)

B2

V+

UNDERRANGE

OVERRANGE

STROBE

RUN/HOLD

DIGTAL GND

POLARITY

CLOCK IN

BUSY

(LSD) D1

D2

D4

(MSB) B8

B4

D3

+5V

1

µF

100k

Ω

1

µF

0.47

µF

VREF IN

Clock

Input

120kHz

–5V

4-1/2 Digit A/D Converter

Số phần tương tự - TC7135

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
TelCom Semiconductor, I...	TC7135	224Kb / 13P	4-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTER
TelCom Semiconductor, I...	TC7135CBU	224Kb / 13P	4-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTER
Microchip Technology	TC7135CBU	457Kb / 24P	4-1/2 Digit A/D Converter 2004
Microchip Technology	TC7135CKW	457Kb / 24P	4-1/2 Digit A/D Converter 2004
TelCom Semiconductor, I...	TC7135CLI	224Kb / 13P	4-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTER

More results

Mô tả tương tự - TC7135

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Intersil Corporation	HI-7159A	210Kb / 14P	Microprocessor-Compatible, 5-1/2 Digit A/D Converter January 1999
Intersil Corporation	ICL7135	733Kb / 15P	4 1/2 Digit, BCD Output, A/D Converter October 25, 2004
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Intersil Corporation	ICL71C03	168Kb / 19P	Precision 4 1/2 Digit, A/D Converter August 1997
Intersil Corporation	ICL8052A	582Kb / 23P	Precision 4 1/2 Digit, A/D Converter May 2001
Microchip Technology	TC7135	457Kb / 24P	4-1/2 Digit A/D Converter 2004
Cyrustek corporation	ES5106	756Kb / 20P	3 1/2 DIGIT A/D CONVERTER W/LCD
Renesas Technology Corp	ICL7135	800Kb / 15P	4 1/2 Digit, BCD Output, A/D Converter

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