Hermetic precision op-amp for extended-range environments
The 20 µV input offset voltage and 35 pA input bias current allow direct coupling in low-level sensor interfaces without external nulling in many cases.
The amplifier operates from a single or dual supply spanning 5 V to 40 V total, drawing 380 µA typical supply current. This wide compliance range makes it straightforward to insert into existing ±15 V or single +12 V analog rails without a dedicated regulator. The 380 µA quiescent current is modest for a hermetic part and keeps self-heating low in a sealed cavity.
Package and mounting — design-in checklist
The hermetic ceramic package provides a moisture barrier essential for uncoated boards in high-altitude or vacuum environments. The supplier device package is 8-CERDIP; the shipping form is bulk tubes. RoHS non-compliance means the part contains lead in the solder dip or seal glass — verify exemption eligibility if your BOM requires RoHS conformity.
The RoHS non-compliant designation is a known constraint for EU-regulated builds; plan for a waiver or an alternative if full RoHS compliance is mandatory. For new designs requiring RoHS compliance, evaluate the AD8622ARZ-REEL (surface-mount, dual, -40°C to 125°C) as a functional alternative, noting the package and temperature grade differences.