LNA used in MRI

Gust Zhang

Expert 5811 points

Hi Team,

My customer wants find a LNA(Low Noise Amplifier) that can use in MRI. Can you kindly recommend some chips for him?

BR,

Gust

over 3 years ago

0 Tamara M Alani over 3 years ago

TI__Genius 10850 points

Hi Gust,

Please take a look at this end equipment reference diagram for amplifier recommendations: https://www.ti.com/solution/mri-magnetic-resonance-imaging

Also, take a look at this list of low noise precision amplifiers: https://www.ti.com/amplifier-circuit/op-amps/precision/products.html#p7typ=0.88;10

0 Michael Steffes over 3 years ago

Guru 48395 points

MOrning Gust,

The reference design does not really give you any parts for the receiver LNA - The actual systems have a discrete 1st stage LNA (to get the very lowest noise figure) followed by a 2nd gain stage - One feature is that these are narrowband systems with the most recent going to a 128MHz carrier - I had been defining a part for TI development, but I doubt that went anywhere given the low channel count worldwide,

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LNA used in MRI