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Filters that are Active are designed to remove unwanted frequencies and signals from a circuit using passives components and amplifying components. The filter types include Antialiasing, Band Pass, Bessel, Butterworth, Cauer, Continuous Low Pass, Digital, Elliptic Band Pass, FIR, Half Band, Linear Phase, Low Pass, Ripple, SD/ED/HD, Serial I/O, Universal, and Variable with frequency ranging from 2kHz to 6.9GHz.

Understand how a comparator switches at a voltage threshold, why hysteresis prevents chatter, and which output and input specs matter.
Read MoreMay 4, 2026 — The global power semiconductor market is grappling with a worsening supply crunch, as lead times for key components have extended…
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Select a bridge rectifier by reverse voltage, capacitor charging current, startup surge and cooling. Work through a stated DC voltage and ripple example.
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Selecting the right microcontroller (MCU) isn’t just about specs—it’s about balancing performance, power, cost, and supply chain reliability. As an engineer, you’ve probably faced…
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Choose LED drivers by current, string voltage, dimming and thermal limits. Understand constant-current operation and the checks needed for your load.
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An RF IC, or radio-frequency integrated circuit, is a chip that processes wireless signals between the antenna and the baseband processor. Instead of building…
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Select a DC-DC converter by input range, topology, isolation and temperature. Compare ripple, efficiency and load limits before choosing a component.
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What Is NOR Flash? Why It Still Powers Critical Embedded Systems When your car’s engine control unit boots in milliseconds…When a medical device executes…
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If you’ve spent any time staring at a schematic, you’ve seen the triangle. Two inputs, one output, and a gain symbol that looks deceptively…
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Stay ahead with ChipApex Insights — technical deep dives, market trends, and sourcing tips for memory, microcontrollers, power management, and industrial-grade components. Trusted by…
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Learn the relay definition, coil and contact operation, NO and NC forms, load ratings and suppression choices. Compare mechanical, reed and solid-state types.
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Select MOV varistors by continuous voltage, clamping behavior, surge waveform and repetition. Check thermal disconnection, fuse coordination and replacements.
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