The OPAx835 family of bipolar-input operational amplifiers offers excellent bandwidth of 56 MHz with ultra-low THD of 0.00003% at 1 kHz. The device can swing to within 200 mV of the supply rails while driving a 2-kΩ load. The input common-mode of the amplifier can swing to 200 mV below the negative supply rail. This level of performance is achieved at 250 µA of quiescent current per amplifier channel.