ST’s integrated tunable capacitors offer excellent RF performance, low power consumption and high linearity required in adaptive RF tuning applications. The fundamental building block of a passive tunable integrated circuit (PTIC) is a tunable material called Parascan™, which is a version of barium strontium titanate (BST) developed by Paratek microwave.

ST’s Parascan™ tunable integrated capacitors (STPTIC) are available with a typical capacitance from 1.5 to 8.2 pF and offer excellent RF performance, low power consumption and high linearity required in adaptive RF tuning applications. The STPTIC G series is optimized for impedance matching (standard linearity) while the STPTIC L series is optimized for frequency tuning (high linearity).

These tunable capacitors are controlled through an extended bias voltage ranging from 1 to 24 V. Over the bias range, the capacitance tuning ratio is 5 to 1.

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