View lt1122 datasheet:

LT1122 Fast Settling, JFET Input Operational Amplifier FEATURES DESCRIPTIO 100% Tested Settling Time 340ns Typ The LT1122 JFET input operational amplifier combines to 1mV at Sum Node, 10V Step 540ns Max high speed and precision performance. Tested with Fixed Feedback Capacitor A unique poly-gate JFET process minimizes gate series Slew Rate 60V/µs Min resistance and gate-to-drain capacitance, facilitating wide Gain Bandwidth Product 14MHz bandwidth performance, without degrading JFET transis- Power Bandwidth (20Vp-p) 1.2 MHz tor matching. Unity Gain Stable; Phase Margin 60° Input Offset Voltage 600µV Max It slews at 80V/µs and settles in 340ns. The LT1122 is Input Bias Current 25°C 75pA Max internally compensated to be unity gain stable, yet it has a 70°C 600pA Max band