TC7116A

更新时间： 2024-09-12 22:42:27

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	549K
描述
3-1/2 Digit Analog-to-Digital Converters with Hold

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中文翻译

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数据手册

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TC7116A 数据手册

TC7116/A/TC7117/A

3-1/2 Digit Analog-to-Digital Converters with Hold

Features

General Description

• Low Temperature Drift Internal Reference

- TC7116/TC7117 80 ppm/°C Typ.

- TC7116A/TC7117A 20 ppm/°C Typ.

• Display Hold Function

The TC7116A/TC7117A are 3-1/2 digit CMOS analog-

to-digital converters (ADCs) containing all the active

components necessary to construct a 0.05% resolution

measurement system. Seven-segment decoders,

polarity and digit drivers, voltage reference, and clock

circuit are integrated on-chip. The TC7116A drives liq-

uid crystal displays (LCDs) and includes a backplane

driver. The TC7117A drives common anode light emit-

ting diode (LED) displays directly with an 8mA drive

current per segment.

• Directly Drives LCD or LED Display

• Zero Reading with Zero Input

• Low Noise for Stable Display

- 2V or 200mV Full Scale Range (FSR)

• Auto-Zero Cycle Eliminates Need for Zero

• Adjustment Potentiometer

These devices incorporate a display hold (HLDR) func-

tion. The displayed reading remains indefinitely, as

long as HLDR is held high. Conversions continue, but

output data display latches are not updated. The refer-

• True Polarity Indication for Precision Null

Applications

• Convenient 9V Battery Operation:

(TC7116/TC7116A)

• High Impedance CMOS Differential Inputs: 10¹²Ω

ence low input (V

-) is not available, as it is with the

REF

TC7106/7107. V

- is tied internally to analog com-

REF

mon in the TC7116A/7117A devices.

• Low Power Operation: 10mW

The TC7116A/7117A reduces linearity error to less

than 1 count. Rollover error (the difference in readings

for equal magnitude but opposite polarity input signals)

is below ±1 count. High-impedance differential inputs

Applications

• Thermometry

offer 1pA leakage current and a 10 Ω input imped-

• Bridge Readouts: Strain Gauges, Load Cells,

Null Detectors

ance. The 15µV

noise performance enables a “rock

P-P

solid” reading. The auto-zero cycle ensures a zero dis-

play reading with a 0V input.

• Digital Meters: Voltage/Current/Ohms/Power, pH

• Digital Scales, Process Monitors

• Portable Instrumentation

The TC7116A and TC7117A feature a precision, low

drift internal reference, and are functionally identical to

the TC7116/TC7117. A low drift external reference is

not normally required with the TC7116A/TC7117A.

Device Selection Table

Package Code

Package

Temperature Range

CPL

IJL

40-Pin PDIP

40-Pin CERDIP

44-Pin PQFP

44-Pin PLCC

0°C to +70°C

-25°C to +85°C

0°C to +70°C

CKW

CLW

2002 Microchip Technology Inc.

DS21457B-page 1

12 3 4 5 6 7...22

中文翻译

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与TC7116A相关器件

型号	品牌	获取价格	描述	数据表
TC7116ACKW	TELCOM	获取价格	3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS WITH HOLD
TC7116ACKW	MICROCHIP	获取价格	3-1/2 Digit Analog-to-Digital Converters with Hold
TC7116ACKW713	MICROCHIP	获取价格	ADC, Dual-Slope, 13-Bit, 1 Func, 1 Channel, CMOS, PQFP44,
TC7116ACKW723	MICROCHIP	获取价格	1-CH 13-BIT DUAL-SLOPE ADC, PQFP44, PLASTIC, QFP-44
TC7116ACKWTR	MICROCHIP	获取价格	1-CH DUAL-SLOPE ADC, PQFP44, PLASTIC, QFP-44
TC7116ACLW	MICROCHIP	获取价格	3-1/2 Digit Analog-to-Digital Converters with Hold
TC7116ACLW	TELCOM	获取价格	3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS WITH HOLD
TC7116ACLW713	MICROCHIP	获取价格	1-CH DUAL-SLOPE ADC, PARALLEL ACCESS, PQCC44, PLASTIC, LCC-44
TC7116ACLW723	MICROCHIP	获取价格	1-CH 13-BIT DUAL-SLOPE ADC, PQCC44, PLASTIC, LCC-44
TC7116ACLWRT	MICROCHIP	获取价格	1-CH DUAL-SLOPE ADC, ACCESS, PQCC44, PLASTIC, LCC-44

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