component
LM2903N
Public Made by Adomby adom
Texas Instruments Comparators, PDIP-8. 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
markdownLM2903N
Texas Instruments · Comparators · PDIP-8
LM2903N from Texas Instruments, in a PDIP-8. 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 | OUTA | output | Output of comparator A, open-collector NPN transistor that can sink up to 16 mA with saturation voltage of 250 mV at 4 mA. |
| 2 | -INA | input | Inverting input of comparator A with input common-mode voltage range of 0 V to V+ − 1.5 V and input bias current of 25 nA. |
| 3 | +INA | input | Noninverting input of comparator A with input common-mode voltage range of 0 V to V+ − 1.5 V and input bias current of 25 nA. |
| 4 | GND | power_in | Ground connection; used as negative supply in dual-supply mode with voltage range ±1.0 V to ±18 V. |
| 5 | +INB | input | Noninverting input of comparator B with input common-mode voltage range of 0 V to V+ − 1.5 V and input bias current of 25 nA. |
| 6 | -INB | input | Inverting input of comparator B with input common-mode voltage range of 0 V to V+ − 1.5 V and input bias current of 25 nA. |
| 7 | OUTB | output | Output of comparator B, open-collector NPN transistor that can sink up to 16 mA with saturation voltage of 250 mV at 4 mA. |
| 8 | V+ | power_in | Positive power supply; accepts 2.0 V to 36 V for single supply or ±1.0 V to ±18 V for dual supply with quiescent current of 0.4 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | PDIP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM2903N - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: PDIP-8 (KiCad packages3D, STEP)
- 3D model files:
lm2903n-etched.step/lm2903n-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2903n.step/lm2903n.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (33 pp, sha256
6bb0c77bb4550bd7, retrieved 2026-09-24, 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-5(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).