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TLC7225

更新时间： 2024-09-10 02:58:39
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德州仪器 - TI /
页数 文件大小 规格书
21页 289K
描述
QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS

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TLC7225 数据手册

 浏览型号TLC7225的Datasheet PDF文件第2页浏览型号TLC7225的Datasheet PDF文件第3页浏览型号TLC7225的Datasheet PDF文件第4页浏览型号TLC7225的Datasheet PDF文件第5页浏览型号TLC7225的Datasheet PDF文件第6页浏览型号TLC7225的Datasheet PDF文件第7页 
TLC7225C, TLC7225I  
QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS  
SLAS109B – OCTOBER 1996 – REVISED FEBRUARY 2001  
DW PACKAGE  
(TOP VIEW)  
Four 8-Bit D/A Converters With Individual  
References  
Direct Bipolar Operation Without an  
External Level-Shift Amplifier  
OUTB  
OUTA  
OUTC  
OUTD  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
2
Microprocessor Compatible  
TTL/CMOS Compatible  
V
V
3
SS  
DD  
REFB  
REFA  
REFC  
REFD  
A0  
4
5
Single Supply Operation Possible  
Simultaneous Update Facility  
Binary Input Coding  
AGND  
DGND  
LDAC  
6
A1  
7
WR  
8
(MSB) DB7  
DB6  
DB0 (LSB)  
DB1  
9
applications  
10  
11  
Process Control  
DB5  
DB2  
DB4 12  
13 DB3  
Automatic Test Equipment  
Automatic Calibration of Large System  
Parameters e.g., Gain/Offset  
description  
The TLC7225 consists of four 8-bit voltage-output digital-to-analog converters (DACs), with output buffer  
amplifiers and interface logic with double register-buffering.  
Separate on-chip latches are provided for each of the DACs. Data is transferred into one of these data latches  
through a common 8-bitTTL/CMOS-compatible(5V)inputport. ControlinputsA0andA1determinewhichDAC  
is loaded when WR goes low. Only the data held in the DAC registers determines the analog outputs of the  
converters. The double register buffering allows simultaneous update of all four outputs under control of LDAC.  
All logic inputs are TTL- and CMOS-level compatible and the control logic is speed compatible with most 8-bit  
microprocessors. Each DAC includes an output buffer amplifier capable of driving up to 5 mA of output current.  
The TLC7225 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 allow the TLC7225 to be operated from a single power-supply rail  
at a reference of 10 V.  
The TLC7225 is fabricated in a LinBiCMOS process that has been specifically developed to allow high-speed  
digitallogiccircuitsandprecisionanalogcircuitstobeintegratedonthesamechip. TheTLC7225hasacommon  
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 a small, 0.3-inch wide, 24-terminal  
SOIC allows significant reduction in board space requirements and offers increased reliability in systems using  
multiple converters. The pinout optimizes 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.  
The TLC7225C is characterized for operation from 0°C to 70°C. The TLC7225I is characterized for operation  
from –25°C to 85°C.  
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 2001, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...21

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TLC7225 替代型号

型号 品牌 替代类型 描述 数据表
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