Mono Class D amp for battery-powered audio
The MAX9700AEUB+ is a mono Class D audio amplifier from Analog Devices, delivering 1.6W into a 6Ω load from a single 2.5V to 5.5V supply rail. Operating over -40°C to +85°C, it suits portable and industrial audio applications where the speaker load and battery chemistry vary.
1.6W into 6Ω — the output that fits the speaker
Rated 1.6W continuous into a 6Ω load, this is the power the amplifier can sustain without thermal foldback or distortion climbing above the datasheet limits. The Class D switching stage keeps quiescent losses low — the efficiency advantage matters most when the battery is near its 2.5V floor and the output is still expected to drive the speaker to full rated power. Differential inputs reject ground noise picked up on the audio signal path between the codec and the amp; the depop feature suppresses the thump when the amplifier powers up or shuts down.
Active production — ROHS3 and ready for BOM
Analog Devices lists the MAX9700AEUB+ as Active in its current product portfolio, with ROHS3 compliance documented.
10-uMAX package — footprint for portable boards
Housed in a 10-lead TFSOP/MSOP (3.00mm width), the 10-uMAX/uSOP supplier package is a common footprint for space-constrained audio sub-systems on multi-layer PCBs. Surface-mount assembly with the exposed paddle soldered to the ground plane pulls heat from the output stage into the board copper.