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Contents

README

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OPA237NA

Texas Instruments · Precision OpAmps · SOT-23-5

OPA237NA from Texas Instruments, in a SOT-23-5. 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 NC unconnected No internal connection. Leave floating or tie to any convenient net; not used by the die.
2 -IN input Inverting input of the op-amp. High-impedance analog input (differential 5 MΩ
3 +IN input Noninverting input of the op-amp. High-impedance analog input (differential 5 MΩ
4 V- power_in Negative (lowest) power supply. Connect to GND for single-supply operation or to the negative rail for dual-supply operation. Total supply (V+ - V-) 2.7 V to 36 V; 36 V absolute maximum.
5 NC unconnected No internal connection. Leave floating or tie to any convenient net; not used by the die.
6 OUT output Op-amp output. Rail-to-rail-ish output that swings to within ~10 mV of the negative rail with light load. Short-circuit current ~7 mA sourcing / 10 mA sinking; output short-circuit-protected continuously.
7 V+ power_in Positive (highest) power supply. Total supply (V+ - V-) 2.7 V to 36 V; 36 V absolute maximum. Bypass with 0.1 µF close to the pin.
8 NC unconnected No internal connection. Leave floating or tie to any convenient net; not used by the die.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-5
Category Op-amp/Cmp
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • OPA237NAD
  • OPA237NA
  • OPA237NADBV

CAD (KiCad official)

  • Symbol: OPA237NA
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: opa237na-etched.step / opa237na-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); opa237na.step / opa237na.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (29 pp, sha256 8afe5b03d4a30908, 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