TC835CKW datasheet(1/24 Pages) MICROCHIP

No de pièce	TC835CKW

Description	Personal Computer Data Acquisition A/D Converter

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Fabricant	MICROCHIP [Microchip Technology]

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DS21478B-page 1

TC835

Features

• Upgrade of Pin-Compatible TC7135, ICL7135

• 200kHz Operation

• Single 5V Operation With TC7660

• Multiplexed BCD Data Output

• UART and Microprocessor Interface

• Control Outputs for Auto-Ranging

• Input Sensitivity: 100µV

• No Sample and Hold Required

Applications

• Personal Computer Data Acquisition

• Scales, Panel Meters, Process Controls

• HP-IL Bus Instrumentation

Device Selection Table

General Description

The TC835 is a low power, 4-1/2 digit (0.005%

resolution), BCD analog to digital converter (ADC) that

has been characterized for 200kHz clock rate opera-

tion. The five conversions per second rate is nearly

twice as fast as the ICL7135 or TC7135. The TC835,

like the TC7135, does not use the external diode resis-

tor rollover error compensation circuits required by the

ICL7135.

The multiplexed BCD data output is perfect for interfac-

ing to personal computers. The low cost, greater than

14-bit high-resolution and 100

µV sensitivity makes the

TC835 exceptionally cost-effective.

Microprocessor-based data acquisition systems are

supported by the BUSY and STROBE outputs, along

with the RUN/HOLD

input of the

TC835. The

OVERRANGE, UNDERRANGE, BUSY and RUN/

HOLD control functions, plus multiplexed BCD data

outputs, make the TC835 the ideal converter for

µP-

based scales, measurement systems and intelligent

panel meters.

The TC835 interfaces with full function LCD and LED

display decoder/drivers. The UNDERRANGE and

OVERRANGE outputs may be used to implement an

auto-ranging scheme or special display functions.

Part Number

Package

Temperature Range

TC835CBU

64-Pin PQFP

0

°Cto +70°C

TC835CKW

44-Pin PQFP

0

°Cto +70°C

TC835CPI

28-Pin PDIP

0

°Cto +70°C

Note:

Tape and Reel available for 44-Pin PQFP

package.

Personal Computer Data Acquisition A/D Converter

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TelCom Semiconductor, I...	TC835CKW	206Kb / 12P	PERSONAL COMPUTER DATA ACQUISITION A/D CONVERTER

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TelCom Semiconductor, I...	TC835	206Kb / 12P	PERSONAL COMPUTER DATA ACQUISITION A/D CONVERTER
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