Dual-pin diodes feature on passive switch
A new passive switch from MACOM Technology Solutions is available from distributor Richardson RFPD with full design support capabilities. The MADP-011048 uses silicon PIN diodes in a non-magnetic surface mount package. There are two sets of diode pairs, constructed in an electrically-isolated, anti-parallel configuration, that operate from 5MHz to 400MHz.
The device is well suited for MRI passive switching applications. The PIN diodes become a high Q R-C network under small signal and behave as an effective passive rectifier or short circuit under high RF signal to tune and de-tune the resonant MRI tank circuit.
The anti-parallel doublet configuration provides efficient power handling.
Additional key features of the switch include: anti-parallel, self-bias configuration, 50W CW incident power handling @ 400 MHz and lead-free 4 mm 8-lead HQFN package.
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