TC818A

更新时间： 2024-09-25 22:20:03

品牌	Logo	应用领域
美国微芯 - MICROCHIP		转换器
页数	文件大小	规格书
24页	583K
描述
Auto-Ranging Analog-to-Digital Converter with 3-1/2 Digit Display

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TC818A

Auto-Ranging Analog-to-Digital Converter

with 3-1/2 Digit Display

Features

General Description

• Auto-Ranging Analog-to-Digital Converter with

3-1/2 Digit Display

The TC818A is an integrating analog-to-digital con-

verter (ADC) with a 3-1/2 digit numeric LCD driver,

automatic ranging, and single 9V battery operation.

The numeric display provides 0.05% resolution and a

full set of annunciators that spell out the TC818A's

many operating modes.

• Annunciator Outputs Permit Customizing of LCD

• Auto-Range Operation for AC and DC Voltage

and Resistance Measurements

• Two User Selected AC/DC

• Current Ranges: 20mA and 200mA

• 22 Operating Ranges: 9 DC/AC Voltage

• 4 AC/DC Current

Automatic range selection is provided for both voltage

(DC and AC) and ohms (high and low power) measure-

ments. Expensive and bulky mechanical range

switches are not required. Five full scale ranges are

available, with automatic selection of external volt/ohm

attenuators over a 1 to 10,000 range. Two current

ranges, 20mA and 200mA, can be manually selected.

The auto-range feature can be bypassed, allowing

input attenuator selection through a single line input.

• 9 Resistance and Low Power Ohms

• Display Hold Function

• 3-1/2 Digit Resolution in Auto-Range

Mode: 1/2000

• Extended Resolution in Manual Range

Mode: 1/3000

During Manual mode operation, resolution is extended

to 3000 counts full scale. Extended resolution is also

available during 2000kΩ and 2000V full scale auto-

range operation. The extended range operation is indi-

cated by a flashing 1 MSD and by the fully extended bar

graph.

• Internal AC-to-DC Conversion Op Amp

• Triplex LCD Drive for Decimal Points, Digits,

• Bar Graphs, and Annunciators

• Continuity Detection and Piezoelectric

Transducer Driver

The TC818A includes an AC-to-DC converter for AC

voltage and current measurements. Only external

diodes/resistors/capacitors are required. Other fea-

tures include a Memory mode, low battery detection,

display HOLD input, and continuity buzzer driver.

• Low Drift Internal Reference: 75ppm/°C

• 9V Battery Operation: 10mW

• Low Battery Detection and LCD Annunciator

Device Selection Table

The 3-1/2 digit numeric display includes a full set of

annunciators. Decimal points are adjusted as auto-

matic or manual range changes occur, and Voltage,

Current, and Ohms Operating modes are displayed.

Additional annunciators are activated for manual, auto,

memory, HOLD, AC, low power ohms, and low battery

conditions.

Operating

Temperature Range

Part Number

Package

TC818ACBU 64-Pin PQFP

0°C to +70°C

The TC818A is available in a surface mounted 64-pin

flat package. Combining a numeric display driver, sin-

gle 9V battery operation, internal range switching, and

compact surface mounting, the TC818A is ideal for

advanced portable instruments.

2002 Microchip Technology Inc.

DS21475B-page 1

12 3 4 5 6 7...24

中文翻译

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与TC818A相关器件

型号	品牌	获取价格	描述	数据表
TC818ACBU	MICROCHIP	获取价格	Auto-Ranging Analog-to-Digital Converter with 3-1/2 Digit Display
TC818ACBUTR	MICROCHIP	获取价格	1-CH DUAL-SLOPE ADC, PQFP64, PLASTIC, QFP-64
TC8-1G2+	MINI	获取价格	RF Transformer, 2MHz Min, 500MHz Max, ROHS COMPLIANT
TC8-1X+	MINI	获取价格	RF Transformer
TC820	TELCOM	获取价格	3-3/4 DIGIT A/D CONVERTER WITH FREQUENCY COUNTER AND LOGIC PROBE
TC820	MICROCHIP	获取价格	3-3/4 Digit A/D Converter with Frequency Counter and Logic Probe
TC820C/KW	MICROCHIP	获取价格	1-CH DUAL-SLOPE ADC, PARALLEL ACCESS, PQFP44, 10 X 10 MM, 2 MM HEIGHT, PLASTIC, MQFP-44
TC820C/LW	MICROCHIP	获取价格	1-CH DUAL-SLOPE ADC, PARALLEL ACCESS, PQCC44, PLASTIC, LCC-44
TC820C/PL	MICROCHIP	获取价格	1-CH DUAL-SLOPE ADC, PARALLEL ACCESS, PDIP40, 0.600 INCH, PLASTIC, DIP-40
TC820CKW	MICROCHIP	获取价格	3-3/4 Digit A/D Converter with Frequency Counter and Logic Probe

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