Hermetic JFET op-amp for harsh environments
Typical uses include precision analog signal conditioning in avionics, missile guidance, satellite telemetry, and downhole instrumentation where the hermetic ceramic package and wide temperature rating are essential. The JFET input stage delivers an input bias current of just 4 pA, making it suitable for high-impedance sensor interfaces such as photodiode amplifiers and charge integrators.
It is best suited for signals below roughly 100 kHz where the full output swing is required. The 3.4 V/µs slew rate limits large-signal bandwidth; a 10 V peak-to-peak output step will be slew-rate limited to about 54 kHz. For lower amplitude signals, the 2 MHz GBW supports gains up to 20 at 100 kHz before the open-loop gain rolls off. The 300 µV typical input offset voltage is moderate for a JFET design but adequate for many precision control loops and transducer amplifiers.
This wide compliance voltage makes it straightforward to interface with common industrial and military power rails: 12 V, 15 V, 24 V, or ±15 V. Despite drawing only 290 µA of quiescent supply current, the output stage can source or sink 80 mA, which is useful for driving heavy loads such as solenoids, relays, or long cable runs in a current-loop configuration. The low supply current is a key advantage in battery-powered or thermally constrained systems where every milliamp counts.
Package and mounting — through-hole ceramic DIP
The part is supplied in an 8-lead ceramic dual-in-line package (8-CDIP) with 0.300-inch (7.62 mm) row spacing. This is a through-hole package, not surface-mount, so board assembly requires plated through-holes and wave soldering or hand soldering. The ceramic body is hermetic, providing superior moisture resistance compared to plastic DIPs, which is why this package is preferred for military, aerospace, and high-reliability programs. The shipping form is Bulk, meaning the parts are not taped and reeled; they are typically shipped in tubes or trays. Verify tube quantity with your distributor when ordering production quantities.
Lifecycle and sourcing reality
For long-life programs such as defense or avionics, this Active status means there is no immediate LTB (Last Time Buy) risk, but given the niche hermetic DIP package, it is worth monitoring TI's PCN (Product Change Notification) feed for any future package or wafer-fab changes.