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TLC7226C

更新时间： 2024-09-09 03:59:27
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
19页 257K
描述
QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS

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TLC7226C 数据手册

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SLAS060E – JANUARY 1995 – REVISED JANUARY 2003  
features  
DW OR N PACKAGE  
(TOP VIEW)  
D
D
D
D
D
Four 8-Bit D/A Converters  
Microprocessor Compatible  
TTL/CMOS Compatible  
OUTB  
OUTA  
OUTC  
OUTD  
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4
5
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10  
20  
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Single Supply Operation Possible  
CMOS Technology  
V
V
SS  
DD  
REF  
AGND  
DGND  
DB7  
DB6  
DB5  
A0  
A1  
applications  
WR  
DB0  
DB1  
DB2  
DB3  
D
D
D
Process Control  
Automatic Test Equipment  
Automatic Calibration of Large System  
Parameters, e.g. Gain/Offset  
DB4  
description  
FK PACKAGE  
(TOP VIEW)  
The TLC7226C, TLC7226I, and TLC7226M  
consist of four 8-bit voltage-output digital-to-  
analog converters (DACs) with output buffer  
amplifiers and interface logic on a single  
monolithic chip.  
3
4
2
1
20 19  
REF  
AGND  
DGND  
DB7  
V
DD  
18  
17  
16  
15  
14  
Separate on-chip latches are provided for each of  
the four DACs. Data is transferred into one of  
these data latches through a common 8-bit  
TTL/CMOS-compatible 5-V input port. Control  
inputs A0 and A1 determine which DAC is loaded  
when WR goes low. The control logic is speed  
compatible with most 8-bit microprocessors.  
A0  
5
6
7
A1  
WR  
DB0  
DB6  
8
9
10 11 12 13  
Each DAC includes an output buffer amplifier  
capable of sourcing up to 5 mA of output current.  
The TLC7226 performance is specified for input reference voltages from 2 V to V  
– 4 V with dual supplies.  
DD  
The voltage mode configuration of the DACs allows the TLC7226 to be operated from a single power supply  
rail at a reference of 10 V.  
The TLC7226 is fabricated in a LinBiCMOS process that has been specifically developed to allow high-speed  
digital logic circuits and precision analog circuits to be integrated on the same chip. The TLC7226 has a common  
8-bit data bus with individual DAC latches. This provides a versatile control architecture for simple interface to  
microprocessors. All latch-enable signals are level triggered.  
Combining four DACs, four operational amplifiers, and interface logic into either a 0.3-inch wide, 20-terminal  
dual-in-line IC (DIP) or a small 20-terminal small-outline IC (SOIC) allows a dramatic reduction in board space  
requirements and offers increased reliability in systems using multiple converters. The Leadless Ceramic Chip  
Carrier (LCCC) package provides for operation at military temperature range. The pinout is aimed at optimizing  
board layout with all of the analog inputs and outputs at one end of the package and all of the digital inputs at  
the other.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
LinBiCMOS is a trademark of Texas Instruments.  
Copyright 2003, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...19

中文翻译

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