TC7109A

更新时间： 2024-11-20 12:01:55

品牌	Logo	应用领域
美国微芯 - MICROCHIP		转换器
页数	文件大小	规格书
32页	378K
描述
12-Bit ïA-Compatible Analog-to-Digital Converters

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TC7109A 技术参数

生命周期：	Active	Reach Compliance Code：	compliant
HTS代码：	8542.39.00.01	风险等级：	5.58
转换器类型：	ADC, DUAL-SLOPE	输出位码：	OFFSET BINARY
Base Number Matches：	1

TC7109A 数据手册

TC7109/A

12-Bit A-Compatible Analog-to-Digital Converters

Features:

General Description:

• Zero Integrator Cycle for Fast Recovery from

Input Overloads

The TC7109A is a 12-bit plus sign, CMOS low power

Analog-to-Digital Converter (ADC). Only eight passive

components and a crystal are required to form a

complete dual slope integrating ADC.

• Eliminates Cross-Talk in Multiplexed Systems

• 12-Bit Plus Sign Integrating A/D Converter with

Over Range Indication

The improved V_OHsource current and other TC7109A

features make it an attractive per-channel alternative to

analog multiplexing for many data acquisition applica-

tions. These features include typical input bias current

of 1pA, drift of less than 1V/°C, input noise typically

15V_P-P, and auto-zero. True differential input and ref-

erence allow measurement of bridge type transducers,

such as load cells, strain gauges and temperature

transducers.

• Sign Magnitude Coding Format

• True Differential Signal Input and Differential

Reference Input

• Low Noise: 15V_P-PTyp.

• Input Current: 1pA Typ.

• No Zero Adjustment needed

• TTL Compatible, Byte Organized Tri-State

Outputs

The TC7109A provides a versatile digital interface. In

the Direct mode, Chip Select and HIGH/LOW byte

enable control parallel bus interface. In the Handshake

mode, the TC7109A will operate with industry standard

UARTs in controlling serial data transmission – ideal for

remote data logging. Control and monitoring of conver-

sion timing is provided by the RUN/HOLD input and

Status output.

• UART Handshake Mode for simple Serial Data

Transmissions

Device Selection Table

Part Number

(TC7109X)*

Temperature

Range

Package

TC7109CKW

TC7109CLW

TC7109CPL

TC7109IJL

44-Pin PQFP

44-Pin PLCC

40-Pin PDIP

0°C to +70°C

-25°C to +85°C

For applications requiring more resolution, see the

TC500, 15-bit plus sign ADC data sheet. The TC7109A

has improved over range recovery performance and

higher output drive capability than the original TC7109.

All new (or existing) designs should specify the

TC7109A wherever possible.

40-Pin CERDIP

*The “A” version has a higher I_OUTon the digital lines.

 2002-2012 Microchip Technology Inc.

DS21456D-page 1

12 3 4 5 6 7...32

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与TC7109A相关器件

型号	品牌	获取价格	描述	数据表
TC7109ACKW	TELCOM	获取价格	12-BIT UP-COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS
TC7109ACKWR	MICROCHIP	获取价格	暂无描述
TC7109ACLW	TELCOM	获取价格	12-BIT UP-COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS
TC7109ACLW723	MICROCHIP	获取价格	1-CH 12-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQCC44, PLASTIC, LCC-44
TC7109ACLWR	MICROCHIP	获取价格	1-CH 12-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQCC44, PLASTIC, LCC-44
TC7109ACPL	TELCOM	获取价格	12-BIT UP-COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS
TC7109AIJL	TELCOM	获取价格	12-BIT UP-COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS
TC7109AIJLG	MICROCHIP	获取价格	1-CH 12-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, CDIP40, CERAMIC, DIP-40
TC7109CKW	TELCOM	获取价格	12-BIT UP-COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS
TC7109CKW	MICROCHIP	获取价格	12-Bit レA-Compatible Analog-to-Digital Conver

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