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MAX4547

更新时间： 2024-11-28 22:58:03
品牌 Logo 应用领域
美信 - MAXIM 开关
页数 文件大小 规格书
16页 168K
描述
Quad/Dual, Low-Voltage, Bidirectional RF/Video Switches

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MAX4547 数据手册

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19-1232; Rev 0; 6/97  
Qu a d /Du a l, Lo w -Vo lt a g e ,  
Bid ire c t io n a l RF/Vid e o S w it c h e s  
6/MAX547  
_______________Ge n e ra l De s c rip t io n  
____________________________Fe a t u re s  
♦ Low 50Ω Insertion Loss: -1dB at 100MHz  
♦ High 50Ω Off Isolation: -80dB at 10MHz  
♦ Low 50Ω Crosstalk: -80dB at 10MHz  
The MAX4545/MAX4546/MAX4547 a re low-volta g e  
T-switches designed for switching RF and video signals  
from DC to 300MHz in 50Ω a nd 75Ω s ys te ms . The  
MAX4545 contains four normally open single-pole/single-  
throw (SPST) switches. The MAX4546 contains two dual  
SPST switches (one normally open, one normally closed.)  
The MAX4547 contains two single-pole/double-throw  
(SPDT) switches.  
♦ DC to 300MHz -3dB Signal Bandwidth  
♦ 20Ω Signal Paths with ±5V Supplies  
♦ 1Ω Signal-Path Matching with ±5V Supplies  
♦ 0.5Ω Signal-Path Flatness with ±5V Supplies  
Each switch is constructed in a “T” configuration, ensuring  
excellent high-frequency off isolation and crosstalk of  
®
-80dB at 10MHz. They can handle Rail-to-Rail analog sig-  
♦ ±2.7V to ±6V Dual Supplies  
nals in either direction. On-resistance (20Ω max) is  
matched between switches to 1Ω max and is flat (0.5Ω  
max) over the specified signal range, using ±5V supplies.  
The off leakage current is less than 5nA at +25°C and  
50nA at +85°C.  
+2.7V to +12V Single Supply  
♦ Low Power Consumption: <1µW  
♦ Rail-to-Rail Bidirectional Signal Handling  
♦ Pin Compatible with Industry-Standard DG540,  
These CMOS switches can operate with dual power sup-  
plies ranging from ±2.7V to ±6V or a single supply  
between +2.7V and +12V. All digital inputs have 0.8V/2.4V  
logic thresholds, ensuring both TTL- and CMOS-logic com-  
patibility when using ±5V or a single +5V supply.  
DG542, DG643  
♦ >2kV ESD Protection per Method 3015.7  
♦ TTL/CMOS-Compatible Inputs  
with Single +5V or ±5V  
________________________Ap p lic a t io n s  
RF Switching  
______________Ord e rin g In fo rm a t io n  
Video Signal Routing  
PART  
TEMP. RANGE  
0°C to +70°C  
0°C to +70°C  
PIN-PACKAGE  
20 Plastic DIP  
20 Wide SO  
MAX4545CPP  
MAX4545CWP  
High-Speed Data Acquisition  
Test Equipment  
Ordering Information continued at end of data sheet.  
ATE Equipment  
____N_e_t_w_o_rk_in_g__________P in Co n fig u ra t io n s /Fu n c t io n a l Dia g ra m s /Tru t h Ta b le s  
TOP VIEW  
IN1  
COM1  
GND1  
N01  
1
2
3
4
5
6
7
8
9
20 IN2  
MAX4546  
MAX4547  
19 COM2  
18 GND2  
17 NO2  
16 V+  
1
2
3
4
5
6
7
8
16  
15  
1
2
3
4
5
6
7
8
16  
15  
IN1  
COM1  
GND1  
N01  
IN2  
IN1  
N01  
N02  
V+  
COM2  
V-  
14 GND2  
13 NO2  
12 V+  
V-  
14 GND2  
13 COM2  
12 GND3  
MAX4545  
GND5  
N04  
15 GND6  
14 N03  
13 GND3  
12 COM3  
11 IN3  
GND1  
COM1  
GND4  
V+  
V-  
GND4  
COM4  
NC4  
NC3  
V-  
11  
10 GND3  
COM3  
11  
10 NC2  
IN2  
GND4  
COM4  
IN4 10  
9
NC1  
9
DIP/SO/SSOP  
DIP/SO/QSOP  
DIP/SO/QSOP  
MAX4547  
MAX4545  
MAX4546  
1, 2  
LOGIC  
SWITCH  
LOGIC  
3, 4  
LOGIC  
NO-COM  
NC-COM  
0
1
OFF  
ON  
0
1
OFF  
ON  
ON  
OFF  
0
1
OFF  
ON  
ON  
OFF  
SWITCHES SHOWN  
FOR LOGIC “0” INPUT  
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.  
________________________________________________________________ Maxim Integrated Products  
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800  
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