component
LM2903BIDR
Public Unreviewedby Ray
Texas Instruments Comparators, SOIC-8. Datasheet-verified pinout, 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
markdownLM2903BIDR
Texas Instruments · Comparators · SOIC-8
LM2903BIDR 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 | 1OUT | output | Open-collector output of comparator 1. Requires an external pull-up resistor to a positive supply. Sinks up to 16 mA typical. |
| 2 | 2OUT | output | Open-collector output of comparator 2. Requires an external pull-up resistor to a positive supply. Sinks up to 16 mA typical. |
| 3 | VCC | power_in | Positive supply voltage. Operates from 3 V to 36 V (single supply) or ±1.5 V to ±18 V (dual supply). |
| 4 | 2IN- | input | Inverting input of comparator 2. Common-mode input range extends from GND to VCC-1.5 V. |
| 5 | 2IN+ | input | Non-inverting input of comparator 2. Common-mode input range extends from GND to VCC-1.5 V. |
| 6 | 1IN- | input | Inverting input of comparator 1. Common-mode input range extends from GND to VCC-1.5 V. |
| 7 | 1IN+ | input | Non-inverting input of comparator 1. Common-mode input range extends from GND to VCC-1.5 V. |
| 8 | GND | power_in | Ground / negative supply. Connect to 0 V in single-supply operation or to negative rail in dual-supply operation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
LM2903BIDRLM2903BIDRIDGKRLM2903BIDRIPWR
CAD (KiCad official)
- Symbol:
LM2903BIDR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (56 pp, sha256
dd9f3d029261a161, 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).