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MAX14778ETP

更新时间： 2024-11-06 11:18:35
品牌 Logo 应用领域
美信 - MAXIM 复用器
页数 文件大小 规格书
15页 2011K
描述
Dual 25V Above- and Below-the-Rails 4:1 Analog Multiplexer

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MAX14778ETP 数据手册

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19-5929; Rev 0; 6/11  
E 5 A L U A T I O N K I T A 5 A I L A B L E  
General Description  
Features  
The MAX14778 dual 4:1 analog multiplexer supports  
analog signals up to Q25V with a single 3.0 to 5.5V  
supply. Each multiplexer has separate control inputs to  
allow independent switching, making the device ideal for  
multiplexing different communications signals with the  
same connector pins. Extended ESD protection of Q6kV  
(Human Body Model) enable direct interfacing to cables  
and connectors.  
S ±±25 Signal Range  
S Single 3.05 to 2.25 Supply  
S Two Independent Multiplexers  
S 1.2I R  
S 3mI R  
(max)  
ON  
ON  
Flatness (typ)  
S 300mA Maximum Current Through Multiplexer  
S 78pF Input Capacitance  
The MAX14778 features a low 1.5I (max) on-resistance  
and 3mI (typ) flatness to maximize signal integrity over  
the entire common-mode voltage range. Each multiplex-  
er can carry up to 300mA of continuous current through  
the multiplexer in either direction.  
S 72MHz Large-Signal Bandwidth  
S Break-Before-Make Operation  
S Extended ESD Protection on A� and B� Pins  
Q6k5 Human Body Model (HBM)  
The MAX14778 supports switching of full-speed USB 1.1  
signals (12Mbps) and RS-485 data rates of up to 20Mbps.  
Ordering Information appears at end of data sheet.  
The MAX14778 is available in a 20-pin (5mm x 5mm)  
TQFN package and is specified over the -40NC to +85NC  
extended temperature range.  
For related parts and recommended products to use with this part,  
refer to www.maxim-ic.com/MAX14778.related.  
Applications  
Functional Diagram  
RS-485/RS-232/USB 1.1 Multiplexing  
POS Peripherals  
ENA  
SA0  
SA1  
V
DD  
Handheld Industrial Devices  
Communication Systems  
Audio/Data Multiplexing  
Connector Sharing  
V
V
P
BIAS  
GENERATION  
CONTROL A  
N
A0  
A1  
A2  
A3  
B0  
B1  
B2  
B3  
MAX14778  
Gaming Machines  
ACOM  
BCOM  
CONTROL B  
ENB  
SB0  
SB1  
GND  
����������������������������������������������������������������� Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-6±9-464±,  
or visit Maxim’s website at www.maxim-ic.com.  
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