TC835 Datasheet

IC型號(hào)：
TC835
PDF描述：
Personal Computer Data Acquisition A/D Converter
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543.66KB
PDF頁(yè)數(shù)：
24頁(yè)
芯片廠家：
MICROCHIP

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TC835

Personal Computer Data Acquisition A/D Converter

Features

鈥?/div>

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: 100碌V

No Sample and Hold Required

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碌V 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

碌P-

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.

Applications

鈥?Personal Computer Data Acquisition

鈥?Scales, Panel Meters, Process Controls

鈥?HP-IL Bus Instrumentation

Device Selection Table

Part Number

TC835CBU

TC835CKW

TC835CPI

Note:

Package

64-PinPQFP

44-PinPQFP

28-Pin PDIP

Temperature Range

0擄C to +70擄C

Tape and Reel available for 44-Pin PQFP

package.

2002 Microchip Technology Inc.

DS21478B-page 1

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