What this 24-bit triple DAC is for
The ADV7146KN66 is a triple 24-bit voltage-output DAC in a 28-pin DIP — a RAM-DAC built for continuous-edge graphics output. Three independent DACs on one die means it drives RGB video or three analog control loops from a single package, with ±1 LSB INL and DNL across the 24-bit span.
Package and rework reality
28-pin PDIP (0.600" wide body, 15.24 mm row spacing) — through-hole, so it survives hot-air desoldering without lifting pads. Pin 1 is at the notched end; the wide body gives you room to probe each pin with a scope clip while the part is soldered in. No exposed paddle, no thermal pad to worry about — the plastic DIP handles the dissipation for a 5 V, triple-DAC load. RoHS non-compliant — if your BOM requires lead-free assembly, this part needs an exemption or a waiver. The tin-lead finish reflows at a lower profile than SAC305, so a mixed-technology board with this DIP and lead-free SMDs calls for a two-pass thermal profile or hand-soldering the through-hole joints after reflow.
Active lifecycle — no last-time-buy pressure
Lifecycle status is Active — Analog Devices still manufactures this part. There is no NRND flag, no EOL notice, and no official successor to plan a migration around. The BOM line is stable for ongoing production as long as the 28-pin DIP footprint and 5 V supply stay in the design.