The IIS Chip Gallery
Nutmeg (2023)
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| Application | Biomedical |
| Technology | 65 |
| Manufacturer | TSMC |
| Type | Research |
| Package | Baredie |
| Dimensions | 1500μm x 1000μm |
| Voltage | 3.7 V |
| Power | 400 mW |
| Clock | 280 MHz |
This chip is part of the spice chips (MoCoMRI2 aka Salt, MoCoMRI3 aka Pepper, Saffron, Espelette, Turmeric) designed to be used in MRI applications.
Nutmeg is an RF front-end for the field probe (modeled as an inductance) which should be used in the final MRI application. It consists of a Power Amplifier to excite a resonant network at 280MHz and reach a differential peak to peak voltage around the probe of 160V with an RMS current flowing into it above 1A, all of that with a low duty cycle. The chip also includes a receiver chain to receive information from the field probe (LNA, Mixer, TIA).