What this JFET op-amp brings to the board
The AD744SH is a single JFET-input op-amp from Analog Devices in a hermetic TO-99-8 metal can. It delivers a 75 V/µs slew rate and 13 MHz gain-bandwidth product, running off a 9 V to 36 V supply. The -55°C to 125°C military temperature range puts it in the class for avionics, satellite, and downhole instrumentation — not a commercial-grade part. Supply current is 3.5 mA, input bias current 30 pA, and input offset voltage 300 µV.
Package and rework reality
Through-hole TO-99-8 metal can — that's a round, 8-pin can with a clear orientation tab. The metal case is hermetic, which matters for moisture-sensitive or high-vibration environments. Rework is straightforward: the can takes a standard soldering iron or hot-air station without worrying about lifting pads. Pin 1 is marked by the tab; no ambiguity under a microscope.
Slew rate and bandwidth — what they mean on the bench
Useful in fast-settling DAC buffers, pulse amplifiers, or video drivers.