This is a 4-circuit J-FET input type OP amplifier developed by TI. 4-circuit version of TL072 with 2 circuits. The characteristics of high input impedance and little bias current flow are closer to the ideal of OP amplifiers than bipolar input type amplifiers, and they continue to be used as easy-to-use products with balanced characteristics. The standard power supply voltage is ±15 V, and it is not suitable for use at low voltage such as a single power supply of +5 V or less.