component

OPA1678IDR

Public Made by Adom

by adom

Texas Instruments Operational Amplifier, SOIC-8-150mil. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs opa1678idr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
opa1678idr-etched.fit.json opa1678idr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
opa1678idr-etched.glb opa1678idr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
opa1678idr-etched.step opa1678idr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
opa1678idr.glb Publish 0.1.0 · Ray 1mo ago
opa1678idr.kicad_mod Publish 0.1.0 · Ray 1mo ago
opa1678idr.kicad_sym Publish 0.1.0 · Ray 1mo ago
opa1678idr.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect and oval pad as a SQUARE EAGLE smd; this carries the real pad shape across (0 -> 8 rounded pads) and stops dropping geometry drawn on KiCad User.N layers. Attributes, connects, pads and the pin-1 marker are gated against decreasing and are unchanged. · Ray 1mo ago
opa1678idr.step Publish 0.1.0 · Ray 1mo ago
package.json Publish 0.2.0 · Ray 1mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
page.json opa1678idr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 16h ago
README.md opa1678idr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 16d ago

OPA1678IDR

Texas Instruments · Operational Amplifier · SOIC-8-150mil

OPA1678IDR from Texas Instruments, in a SOIC-8-150mil. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 OUT A output Output, channel A. Rail-to-rail output stage capable of swinging to within 800 mV of the supply rails with a 2-kΩ load. Short-circuit current typ ±50 mA.
2 -IN A input Inverting input, channel A. High-impedance FET-input (100 MΩ
3 +IN A input Noninverting input, channel A. High-impedance FET-input; input bias current typ ±10 pA. Common-mode range (V-)+0.5 V to (V+)-2 V; CMRR 110 dB typ.
4 V- power_in Negative (lowest) power supply. For dual-supply operation typically -2.25 V to -18 V; for single-supply operation tie to ground. Total supply (V+)-(V-) 4.5 V to 36 V (40 V abs max).
5 +IN B input Noninverting input, channel B. High-impedance FET-input; input bias current typ ±10 pA. Common-mode range (V-)+0.5 V to (V+)-2 V.
6 -IN B input Inverting input, channel B. High-impedance FET-input; input bias current typ ±10 pA. Common-mode range (V-)+0.5 V to (V+)-2 V.
7 OUT B output Output, channel B. Rail-to-rail output stage; short-circuit current typ ±50 mA. Slew rate 9 V/µs.
8 V+ power_in Positive (highest) power supply. Supply range 4.5 V to 36 V single-supply, or ±2.25 V to ±18 V split. Quiescent current 2 mA per channel typical.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8-150mil
Category Op-amp/Cmp
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • OPA1678IDR
  • OPA1678IDRIDGKR
  • OPA1678IDRIDGK
  • OPA1678IDRGR
  • OPA1678IDRGT

CAD (KiCad official)

  • Symbol: OPA1678IDR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8-150mil (KiCad packages3D, STEP)
  • 3D model files: opa1678idr-etched.step / opa1678idr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); opa1678idr.step / opa1678idr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
opa1678idr.step 122 KB You want the bare part, or you mark your own boards.
opa1678idr-etched.step 2.0 MB You want the part with OPA1678IDR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 503 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (56 pp, sha256 4072daad4ebc4ec9, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF