component

INA188IDR

Public Made by Adom

by adom

Texas Instruments Precision OpAmps, SOIC-8. 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 ina188idr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d 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
ina188idr-etched.fit.json ina188idr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
ina188idr-etched.glb ina188idr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
ina188idr-etched.step ina188idr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
ina188idr.glb Publish 0.1.0 · Ray 1mo ago
ina188idr.kicad_mod Publish 0.1.0 · Ray 1mo ago
ina188idr.kicad_sym Publish 0.1.0 · Ray 1mo ago
ina188idr.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
ina188idr.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 Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray 11d ago
README.md ina188idr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 17d ago

INA188IDR

Texas Instruments · Precision OpAmps · SOIC-8

INA188IDR from Texas Instruments, in a SOIC-8. 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 RG passive Gain setting pin. For gains greater than 1, place an external gain resistor R_G between pin 1 and pin 8. Gain equation: G = 1 + (50 kΩ / R_G).
2 VIN- input Negative (inverting) analog input of the instrumentation amplifier. High-impedance differential input; common-mode range (V-)+0.1 V to (V+)-1.5 V.
3 VIN+ input Positive (non-inverting) analog input of the instrumentation amplifier. High-impedance differential input; common-mode range (V-)+0.1 V to (V+)-1.5 V.
4 V- power_in Negative supply rail. Connect to ground for single-supply operation, or to the negative supply for dual-supply operation. Absolute-max supply span ±20 V (40 V single).
5 REF input Reference input. Sets the output common-mode / offset level (V_OUT = (V_IN+ - V_IN-)·G + V_REF). Must be driven from a low-impedance source or tied to ground; input impedance ≈ 40 kΩ.
6 VOUT output Rail-to-rail amplifier output. Short-circuit current ±18 mA; output swings within ~250 mV of the supply rails with R_L = 10 kΩ.
7 V+ power_in Positive supply rail. Single-supply 4 V to 36 V or dual-supply ±2 V to ±18 V. Quiescent current 1.4 mA typ.
8 RG passive Gain setting pin. Complements pin 1; place external R_G between pins 1 and 8 to set gain. Leave open for G = 1.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • INA188IDR
  • INA188IDRJ

CAD (KiCad official)

  • Symbol: INA188IDR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ina188idr-etched.step / ina188idr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ina188idr.step / ina188idr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ina188idr.step 122 KB You want the bare part, or you mark your own boards.
ina188idr-etched.step 1.9 MB You want the part with INA188IDR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 479 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 (41 pp, sha256 dce0bd5f616f35f5, 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