Maxim Integrated DirectDrive® series, MAX9721AETC Class AB stereo headphone amplifier, 1-channel mono output, 25mW x 1 @ 16Ω, 0.9V to 1.8V supply, -40°C to 85°C, 12-WQFN Exposed Pad package.
| Parameter | Value |
|---|---|
| Type | Class AB |
| Series | DirectDrive® |
| Output type | 1-Channel (Mono) with Stereo Headphones |
| Mounting | Surface Mount |
| Supply voltage | 0.9V ~ 1.8V |
| Max output power x channels @ load | 25mW x 1 @ 16Ohm |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Bulk |
| Case | 12-WQFN Exposed Pad |
The MAX9721AETC from Maxim Integrated is a Class AB stereo headphone amplifier built on the DirectDrive® architecture. It delivers 25 mW per channel into a 16 Ω load from a single supply rail that runs as low as 0.9 V and up to 1.8 V.
The 0.9 V to 1.8 V supply range is the headline constraint. The 25 mW into 16 Ω is enough for moderate listening levels with most consumer headphones.
It delivers 25 mW per channel into a 16 Ω load. Into 32 Ω headphones, expect roughly half that power.
No, the MAX9721AETC is listed as RoHS non-compliant. Verify with your assembly house whether an exemption applies for your product.