LF256 Datasheet, Texas Instruments

*1 Advantages
  – Replace Expensive Hybrid and Module FET Op Amps
  – Rugged JFETs Allow Blow-Out Free Handling Compared With MOSFET Input.

Using Either High or Low Source Impedance—Very Low 1/f Corner
  – Offset Adjust Does Not Degrade Drift or .

The LFx5x devices are the first monolithic JFET input operational amplifiers to incorporate well-matched, high-voltage JFETs on the same chip with standard bipolar transistors (BI-FET™ Technology). These amplifiers feature low input bias and offset c.