MAX4007x & MAX4008x Low Noise Amplifiers Analog Devices MAX4007x and MAX4008x Low Noise Amplifiers are wide-band, low-noise, low-input bias current operational amplifiers. The amplifiers offer rail-to-rail outputs and single-supply operation from 2.7V to 5.5V. These low-noise amps draw 2.2mA of quiescent supply current per amplifier. The ADI MAX4007x and MAX4008x family of amplifiers offer ultralow distortion (0.0002% THD+N), low input voltage-noise density (4.2nV/√Hz), and low input current-noise density (0.5fA/√Hz). The low input bias current of 50fA (typ) and low noise (4.5nV/√Hz), together with the wide bandwidth, provides excellent performance for trans-impedance (TIA) and imaging applications.