JFET input stage — 65 pA bias current
The TL072CPE4 is a dual JFET-input operational amplifier from Texas Instruments. The JFET front end delivers a typical input bias current of 65 pA, which is orders of magnitude lower than a general-purpose bipolar op-amp. This makes the part a natural fit for high-impedance signal conditioning — photodiode amplifiers, pH probe buffers, piezoelectric sensor interfaces — where bias current errors would otherwise swamp the signal.
13V/µs slew rate — dynamic response for audio and control loops
The 13V/µs slew rate and 3 MHz gain-bandwidth product support audio-frequency signal chains.
The supply span covers 10 V to 30 V total. The 3 mV typical input offset voltage is tight enough for most precision DC-coupled stages.
