WMAS Series SMT Version, Superconductor-like MRI Pre-Amplifiers
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WMAS Series Room Temperature Superconductor-like MRI Pre-Amplifiers
WMAS series room temperature superconductor-like 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.
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Model
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Application
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Freq
(MHz)
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Gain
(dB)
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NF
(dB)
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SWR1
Ratio
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SWR2
Ratio
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P1dB
(dBm)
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OIP3
(dBm)
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Zin
(Ohm)
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Idd
(mA)
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Vdd
(V)
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Package
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WMAS3RA
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MRI
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127.73
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28.0
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0.27
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--
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1.2:1
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10.0
|
22.0
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1.5
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17
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7-12
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0.6"x0.4"
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WMAS3RA-R5
|
MRI
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127.73
|
28.0
|
0.27
|
--
|
1.2:1
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10.0
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22.0
|
0.5
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17
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7-12
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0.6"x0.4"
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WMAS4R7A
|
MRI
|
200
|
28.0
|
0.23
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--
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1.2:1
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10.0
|
22.0
|
1.5
|
17
|
7-12
|
0.6"x0.4"
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WMAS4R7A-R5
|
MRI
|
200
|
28.0
|
0.23
|
--
|
1.2:1
|
10.0
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22.0
|
0.5
|
17
|
7-12
|
0.6"x0.4"
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WMAS7RA
|
MRI
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298
|
28.0
|
0.23
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--
|
1.2:1
|
10.0
|
21.0
|
1.5
|
17
|
7-12
|
0.6"x0.4"
|
|
WMAS7RA-R5
|
MRI
|
298
|
28.0
|
0.23
|
--
|
1.2:1
|
10.0
|
21.0
|
0.5
|
17
|
7-12
|
0.6"x0.4"
|
|
WMAS9RA
|
MRI
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400.4
|
28.0
|
0.23
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--
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1.2:1
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10.0
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21.0
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1.5
|
17
|
7-12
|
0.6"x0.4"
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WMAS9RA-R5
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MRI
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400.4
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28.0
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0.25
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--
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1.2:1
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10.0
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21.0
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0.5
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17
|
7-12
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0.6"x0.4"
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