4 layers92.3 × 40.5 mm

Surtr LMMKI
PFMRLIB/Surtr-LM
Precision Reference with 10.5V/1.05V Output Based on LM399/ADR1399
93 partsBSD-3-Clause-Clear
Boards in 1 GitHub repository, designed in KiCad, that use the OPA189IDBV by Texas Instruments (-18V~-2.25V、2.25V~18V -40℃~+125℃ 1 1.3mA 140pA 14MHz 168dB 20V/us 4.5V~36V 400nV 5.2nV/√Hz@1kHz 5nV/℃ 65mA 70pA EMI filtering/RF suppression、Zero drift / auto-zero、ESD protection、Reverse-phase input protection Rail-to-rail output SOT-23-5 Precision Op Amps ROHS). See how each wires it, with its parts, size, README and files; the OPA189IDBV’s symbol, footprint and pinout are on its own page.

PFMRLIB/Surtr-LM
Precision Reference with 10.5V/1.05V Output Based on LM399/ADR1399