component
LM2903PSR
Public Made by Adomby adom
Texas Instruments Comparators, SOIC-8-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM2903PSR
Texas Instruments · Comparators · SOIC-8-208mil
LM2903PSR from Texas Instruments, in a SOIC-8-208mil. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 1OUT | output | Comparator 1 open-drain output; sinks current (IOL = 6-21mA) when 1IN- exceeds 1IN+ plus offset voltage. |
| 2 | 1IN- | input | Comparator 1 negative input; operates within common-mode range 0V to (VCC-2V) with maximum differential voltage rating ±36V. |
| 3 | 1IN+ | input | Comparator 1 positive input; operates within common-mode range 0V to (VCC-2V) with maximum differential voltage rating ±36V. |
| 4 | GND | power_in | Ground reference; provides return path for output sink current and signal reference. |
| 5 | 2IN+ | input | Comparator 2 positive input; operates within common-mode range 0V to (VCC-2V) with maximum differential voltage rating ±36V. |
| 6 | 2IN- | input | Comparator 2 negative input; operates within common-mode range 0V to (VCC-2V) with maximum differential voltage rating ±36V. |
| 7 | 2OUT | output | Comparator 2 open-drain output; sinks current (IOL = 6-21mA) when 2IN- exceeds 2IN+ plus offset voltage. |
| 8 | VCC | power_in | Positive power supply; operating range 2V to 30V with absolute maximum rating 36V and typical supply current 0.8-1.0mA at 5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8-208mil |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM2903PSR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8-208mil (KiCad packages3D, STEP)
- 3D model files:
lm2903psr-etched.step/lm2903psr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2903psr.step/lm2903psr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (56 pp, sha256
ef2f6d546e5c5f65, retrieved 2026-09-26, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).