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MPC507AP 参数 Datasheet PDF下载

MPC507AP图片预览
型号: MPC507AP
PDF下载: 下载PDF文件 查看货源
内容描述: 单端16通道/差分8通道CMOS模拟多路复用器 [Single-Ended 16-Channel/Differential 8-Channel CMOS ANALOG MULTIPLEXERS]
分类和应用: 复用器光电二极管
文件页数/大小: 15 页 / 419 K
品牌: BB [ BURR-BROWN CORPORATION ]
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Factors which will degrade multiplexer and system DC  
CMR are:  
Common-Mode Rejection (MPC507A Only)  
The matching properties of the load, multiplexer and source  
affect the common-mode rejection (CMR) capability of a  
differentially multiplexed system. CMR is the ability of the  
multiplexer and input amplifier to reject signals that are  
common to both inputs, and to pass on only the signal  
difference to the output. For the MPC507A, protection is  
provided for common-mode signals of ±20V above the  
power supply voltages with no damage to the analog switches.  
• Amplifier bias current and differential impedance mis-  
match  
• Load impedance mismatch  
• Multiplexer impedance and leakage current mismatch  
• Load and source common-mode impedance  
AC CMR roll-off is determined by the amount of common-  
mode capacitances (absolute and mismatch) from each  
signal line to ground. Larger capacitances will limit CMR  
at higher frequencies; thus, if good CMR is desired at  
higher frequencies, the common-mode capacitances and  
unbalance of signal lines and multiplexer to amplifier wiring  
must be minimized. Use twisted-shielded pair signal lines  
wherever possible.  
The CMR of the MPC507A and Burr-Brown's INA110  
instrumentation amplifier (G = 100) is 110dB at DC to 10Hz  
with a 6dB/octave roll-off to 70dB at 1000Hz. This measure-  
ment of CMR is shown in the Typical Performance Curves  
and is made with a Burr-Brown INA110 instrumentation  
amplifier connected for gains of 500, 100, and 10.  
SWITCHING WAVEFORMS  
Typical at +25°C, unless otherwise noted.  
BREAK-BEFORE-MAKE DELAY (tOPEN  
)
VA Input  
2V/Div  
MPC506A1  
+5V  
4.0V  
VAM  
A3  
A2  
In 1  
Address Drive  
(VA)  
VA  
A1 In 2 Thru In 15  
A0  
1 On  
16 On  
Output  
0.5V/Div  
0V  
In 16  
50Ω  
Output  
VOUT  
Out  
1kΩ  
En  
GND  
50%  
50%  
+4.0V  
12.5pF  
tOPEN  
100ns/Div  
NOTE: (1) Similar connection for MPC507A.  
ENABLE DELAY (tON (EN), tOFF (EN))  
Enable Drive  
MPC506A1  
V
AM = 4.0V  
A3  
A2  
+10V  
In 1  
50%  
A1  
A0  
0V  
In 2 Thru In 16  
Output  
90%  
1 On  
Out  
En  
GND  
VA  
12.5pF  
90%  
1k  
50Ω  
t
ON(EN)  
tOFF(EN)  
In 1 Thru  
In 16 Off  
Output  
2V/Div  
NOTE: (1) Similar connection for MPC507A.  
100ns/Div  
MPC506A, MPC507A  
7
SBFS018A  
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