Walasey Ltd

 


WMAS Series Room Temperature Super Conductor-Alike MRI Pre-Amplifiers

WMAS series room temperature super conductor-alike preamps are designed for ultimate SNR MRI multiple chanel coils applications. The noise figure at room temperature reaches 0.25 dB or lower and the reverse isolation can be as high as 70 dB. The pre-amplifiers have as low as 0.5 Ohm input impedance with unconditional stable. 

Model
Application
Freq
(MHz)
Gain
(dB)
NF
(dB)
SWR1
Ratio
SWR2
Ratio
P1dB
(dBm)
OIP3
(dBm)
Zin
(Ohm)
Idd
(mA)
Vdd
(V)
Package
MRI
127.73
28.0
0.27
--
1.2:1
10.0
22.0
1.5
17
7-12
0.6"x0.4"
MRI
127.73
28.0
0.27
--
1.2:1
10.0
22.0
0.5
17
7-12
0.6"x0.4"
MRI
200
28.0
0.23
--
1.2:1
10.0
22.0
1.5
17
7-12
0.6"x0.4"
MRI
200
28.0
0.23
--
1.2:1
10.0
22.0
0.5
17
7-12
0.6"x0.4"
MRI
298
28.0
0.23
--
1.2:1
10.0
21.0
1.5
17
7-12
0.6"x0.4"
MRI
298
28.0
0.23
--
1.2:1
10.0
21.0
0.5
17
7-12
0.6"x0.4"
MRI
400.4
28.0
0.23
--
1.2:1
10.0
21.0
1.5
17
7-12
0.6"x0.4"
MRI
400.4
28.0
0.25
--
1.2:1
10.0
21.0
0.5
17
7-12
0.6"x0.4"

 

 

 

 

 

 

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Tel: +852-2357-1676

 

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