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LTC1393

更新时间： 2024-09-26 14:57:59
品牌 Logo 应用领域
亚德诺 - ADI 复用器
页数 文件大小 规格书
12页 240K
描述
具 SMBus 接口的差分 4 通道模拟多路复用器

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中文翻译

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LTC1393 数据手册

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LTC1380/LTC1393  
Single-Ended 8-Channel/  
Differential 4-Channel Analog  
Multiplexer with SMBus Interface  
U
FEATURES  
DESCRIPTION  
The LTC®1380/LTC1393 are CMOS analog multiplexers with  
SMBus® compatible digital interfaces. The LTC1380 is a  
single-ended 8-channel multiplexer, while the LTC1393 is a  
differential 4-channel multiplexer. The SMBus digital inter-  
face requires only two wires (SCL and SDA). Both the  
LTC1380 and the LTC1393 have four hard-wired SMBus  
addresses, selectable with two external address pins. This  
allows four devices, each with a unique SMBus address, to  
coexist on one system and for four devices to be synchro-  
nized with one stop bit.  
■
Micropower Operation: Supply Current = 20µA Max  
2-Wire SMBus Interface  
Single 2.7V to ±5V Supply Operation  
Expandable to 32 Single or 16 Differential Channels  
Guaranteed Break-Before-Make  
Low RON: 35Ω Single Ended/70Ω Differential  
Low Charge Injection: 20pC Max  
■
■
■
■
■
■
■
■
Low Leakage: ±5nA Max  
Available in 16-Lead SO and GN Packages  
U
The supply current is typically 10µA. Both digital interface  
pins are SMBus compatible over the full operating supply  
voltage range. The LTC1380 analog switches feature a  
typicalRON of35Ω(± 5Vsupplies), typicalswitchleakageof  
20pAandguaranteedbreak-before-makeoperation.Charge  
injection is ±1pC typical.  
APPLICATIONS  
■
Data Acquisition Systems  
Process Control  
Laptop Computers  
Signal Multiplexing/Demultiplexing  
Analog-to-Digital Conversion Systems  
■
■
■
■
The LTC1380/LTC1393 are available in 16-lead SO and GN  
packages. Operation is fully specified over the commercial  
and industrial temperature ranges.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
SMBus is a registered trademark of Intel Corporation.  
U
TYPICAL APPLICATION  
On Resistance vs VS  
LTC1380 Single-Ended 8-Channel Multiplexer  
5V  
250  
T
D
= 25°C  
A
225  
200  
175  
150  
125  
100  
75  
I
= 1mA  
SMBus  
HOST  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
0.1µF  
15k  
15k  
S0  
S1  
S2  
S3  
S4  
S5  
S6  
S7  
V
CC  
V
CC  
V
EE  
= 2.7V  
= 0V  
SCL  
SDA  
SCL  
SDA  
A0  
8 ANALOG  
INPUTS  
LTC1380  
V
= 5V  
= 0V  
CC  
A1  
V
EE  
V
= 5V  
CC  
GND  
0.1µF  
V
EE  
= –5V  
50  
–5V  
V
EE  
25  
ANALOG OUTPUT  
1380/93 TA01  
D
O
0
–5 –4 –3 –2 –1  
0
1
2
3
4
5
V
(V)  
S
1167 G15  
1
1234567...12

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