Dual general-purpose op-amp in a hermetic ceramic package
The Analog Devices OP213EZ is a dual-channel general-purpose operational amplifier in a hermetic 8-CERDIP package. The 4 V to 36 V supply span covers most control-voltage rails.
The 100 µV input offset voltage and 240 nA input bias current are moderate. The 40 mA output current per channel can drive a 100 Ω load.
This means it cannot be used on lead-free assembly lines without a waiver. It remains a legitimate choice for military, aerospace, and industrial applications that are exempt from RoHS or that require a hermetic seal. No official second-source alternate is recorded, but the ceramic-package requirement limits drop-in equivalents.