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AD8185-EVAL

更新时间： 2024-11-22 23:16:19
品牌 Logo 应用领域
亚德诺 - ADI 复用器
页数 文件大小 规格书
16页 742K
描述
380 MHz, 25 mA, Triple 2:1 Multiplexers

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AD8185-EVAL 数据手册

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380 MHz, 25 mA,  
a
Triple 2:1 Multiplexers  
AD8183/AD8185*  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
Fully Buffered Inputs and Outputs  
Fast Channel-to-Channel Switching: 15 ns  
High Speed  
380 MHz Bandwidth (–3 dB) 200 mV p-p  
310 MHz Bandwidth (–3 dB) 2 V p-p  
1000 V/␮s Slew Rate G = +1, 2 V Step  
1150 V/␮s Slew Rate G = +2, 2 V Step  
Fast Settling Time of 15 ns to 0.1%  
Low Power: 25 mA  
Excellent Video Specifications (RL = 150 ⍀)  
Gain Flatness of 0.1 dB to 90 MHz  
0.01% Differential Gain Error  
0.02؇ Differential Phase Error  
Low All-Hostile Crosstalk –84 dB @ 5 MHz  
–54 dB @ 50 MHz  
AD8183/AD8185  
IN0A  
DGND  
IN1A  
1
2
24  
23  
22  
V
CC  
OE  
SELECT  
3
SEL A/B  
DISABLE  
GND  
21 V  
CC  
4
20  
19  
IN2A  
OUT0  
5
0
1
2
V
V
6
CC  
EE  
V
18 OUT1  
7
EE  
17  
V
8
IN2B  
GND  
IN1B  
GND  
CC  
16  
9
OUT2  
10  
15  
V
EE  
14 DVCC  
13  
11  
12  
Low Channel-to-Channel Crosstalk –56 dB @ 100 MHz  
High “OFF” Isolation of –100 dB @ 10 MHz  
Low Cost  
IN0B  
V
CC  
Fast High Impedance Output Disable Feature for  
Connecting Multiple Devices  
APPLICATIONS  
Table I. Truth Table  
Pixel Switching for “Picture-In-Picture”  
Switching RGB in LCD and Plasma Displays  
RGB Video Switchers and Routers  
SEL A/B  
OE  
OUT  
0
1
0
1
0
0
1
1
INA  
INB  
High Z  
High Z  
PRODUCT DESCRIPTION  
The AD8183 (G = +1) and AD8185 (G = +2) are high speed  
triple 2:1 multiplexers. They offer –3 dB signal bandwidth up to  
380 MHz, along with slew rate of 1000 V/µs. With better than  
–90 dB of channel-to-channel crosstalk and isolation at 10 MHz,  
they are useful in many high-speed applications. The differential  
gain and differential phase errors of 0.01% and 0.02° respectively,  
along with 0.1 dB flatness to 90 MHz make the AD8183 and  
AD8185 ideal for professional video and RGB multiplexing. They  
offer 15 ns channel-to-channel switching time, making them  
an excellent choice for switching video signals, while consuming  
less than 25 mA on ±5 V supply voltages.  
V
R
= 1.4V STEP  
= 150⍀  
O
1.4V  
1.2V  
1.0V  
0.8V  
0.6V  
0.4V  
0.2V  
0.0V  
L
Both devices offer a high speed disable feature that can set the  
output into a high impedance state. This allows the building of  
larger input arrays while minimizing “OFF” channel output  
loading. They operate on voltage supplies of ±5 V and are offered  
in a 24-lead TSSOP package.  
200mV  
2ns  
Figure 1. AD8185 Pulse Response; RL = 150 Ω  
*Patents pending.  
REV. 0  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, nor for any infringements of patents or other rights of third parties  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 1999  
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