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AD7306AN

更新时间： 2024-11-24 22:38:59
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
8页 152K
描述
+5 V Powered RS-232/RS-422 Transceiver

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AD7306AN 数据手册

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+5 V Powered  
RS-232/RS-422 Transceiver  
a
AD7306  
FEATURES  
RS-232 and RS-422 on One Chip  
Single +5 V Supply  
FUNCTIO NAL BLO CK D IAGRAM  
0.1 ␮F Capacitors  
1
2
24  
23  
22  
21  
20  
19  
18  
17  
16  
V+  
C1+  
C1–  
V–  
Short Circuit Protection  
Excellent Noise Im m unity  
Low Pow er BiCMOS Technology  
High Speed, Low Skew RS-422 Operation  
–40؇C to +85؇C Operations  
C2–  
C2+  
R2  
3
R2  
4
IN  
OUT  
T1  
5
T1  
T2  
OUT  
OUT  
IN  
APPLICATIONS  
DTE-DCE Interface  
Packet Sw itching  
Local Area Netw orks  
Data Concentration  
T2  
6
AD7306  
SOIC  
IN  
V
7
CC  
GND  
R1  
TOP VIEW  
(Not to Scale)  
R1 (B)  
IN  
8
OUT  
R1 /R1 (A)  
Data Multiplexers  
Integrated Services Digital Netw ork (ISDN)  
T3  
IN  
9
IN  
IN  
OUT  
OUT  
T3  
T3  
(B)  
(A)  
NC  
10  
11  
12  
15 232/422 SEL  
14  
13  
GND  
NC  
GENERAL D ESCRIP TIO N  
T he AD7306 line driver/receiver is a 5 V monolithic product  
which provides an interface between T T L signal levels and dual  
standard EIA RS-232/RS-422 signal levels. T he part contains  
two RS-232 drivers, one RS-422 driver, one RS-232 receiver,  
and one receiver path which can be configured either as RS-232  
or as RS-422.  
NC = NO CONNECT  
T he RS-232 channels are suitable for communications rates up  
to 100 kHz and the RS-422 channels are suitable for high speed  
communications up to 5 MHz. T he RS-422 transmitter comple-  
mentary outputs are closely matched and feature low timing  
skew between the complementary outputs. T his is often an es-  
sential requirement to meet tight system timing specifications.  
An internal charge pump voltage converter facilitates operation  
from a single +5 V power supply. T he internal charge pump  
generates ±10 V levels allowing RS-232 output levels to be de-  
veloped without the need for external bipolar power supplies.  
All inputs feature ESD protection, all driver outputs feature  
high source and sink current capability and are internally pro-  
tected against short circuits on the outputs. An epitaxial layer is  
used to guard against latch-up.  
A highly efficient charge pump design allows operation using  
non polarized, miniature 0.1 µF capacitors. T his gives a consid-  
erable saving in printed circuit board space over conventional  
products which can use up to 10 µF capacitors. T he charge  
pump output voltages may also be used to power external cir-  
cuitry which requires dual supplies.  
T he part is available in a 24-lead SOIC and 24-pin plastic DIP  
package.  
REV. B  
Inform ation furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assum ed by Analog Devices for its  
use, nor for any infringem ents of patents or other rights of third parties  
which m ay result from its use. No license is granted by im plication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norw ood, MA 02062-9106, U.S.A.  
Tel: 617/ 329-4700  
Fax: 617/ 326-8703  
12345678

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AD7306AN 替代型号

型号 品牌 替代类型 描述 数据表
AD7306ANZ ADI

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