AD8532 Small, high-quality headphone amplifier that works with 32? … 100? low impedance headphones. Ideal as an audio supplement. Headphone amplifier with low-noise, low-voltage AD8532 operational amplifier up to 250 mA. Low-noise power supply with ADP7104 regulator. AD8532 headphone... Electronics Projects, 32Ω 100Ω Headphone Amplifier with AD8532 "audio amplifier circuits, ic amplifier, " Date 2019/08/04