Mono Class AB amplifier with integrated microphone input path
The MAX9813HEKA+T is a single-channel (mono) Class AB amplifier from Analog Devices, designed to drive a speaker or line output from a microphone-level input. The part integrates an input multiplexer, microphone bias generation, shutdown control, and thermal protection into the SOT-23-8 footprint — consolidating the analog front-end for a voice or audio channel into one IC.
SOT-23-8 package and surface-mount assembly
Housed in the SOT-23-8 package (Supplier Device Package SOT-23-8), the MAX9813HEKA+T occupies minimal board area — roughly 2.9 mm x 1.6 mm. The 8-pin footprint routes easily on a 2-layer PCB; the exposed pad (if present on this variant) aids thermal conduction from the output stage to the ground plane. The SOT-23-8 body is compatible with standard reflow profiles (MSL level per Analog Devices recommendation — verify bake requirements if the reel seal is broken).
Active lifecycle and compliance documentation
No end-of-life notice or last-time-buy window has been issued — this part remains a current-production, design-in-eligible device for new BOMs. No pin-compatible second source or direct successor is recorded in the Analog Devices portfolio for this exact order code.