component
LM2903AVQDRG4Q1
Public Made by Adomby adom
Texas Instruments Comparators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownLM2903AVQDRG4Q1
Texas Instruments · Comparators · SOIC-8
LM2903AVQDRG4Q1 from Texas Instruments, in a SOIC-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 | 1OUT | output | Open-drain output of comparator 1; sinks current when negative input 1IN- exceeds positive input 1IN+ by more than input offset voltage. |
| 2 | 1IN- | input | Negative input of comparator 1; accepts input voltages within common-mode range 0V to VCC-1.5V at 25°C. |
| 3 | 1IN+ | input | Positive input of comparator 1; accepts input voltages within common-mode range 0V to VCC-1.5V at 25°C. |
| 4 | GND | power_in | Ground; negative supply reference and common-mode reference pin. |
| 5 | 2IN+ | input | Positive input of comparator 2; accepts input voltages within common-mode range 0V to VCC-1.5V at 25°C. |
| 6 | 2IN- | input | Negative input of comparator 2; accepts input voltages within common-mode range 0V to VCC-1.5V at 25°C. |
| 7 | 2OUT | output | Open-drain output of comparator 2; sinks current when negative input 2IN- exceeds positive input 2IN+ by more than input offset voltage. |
| 8 | VCC | power_in | Positive supply voltage; V-suffix device operates from 2V to 32V DC. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM2903AVQDRG4Q1 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
lm2903avqdrg4q1-etched.step/lm2903avqdrg4q1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2903avqdrg4q1.step/lm2903avqdrg4q1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (47 pp, sha256
765b5f97d419335c, 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).