component
LM211QDR
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
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM211QDR
Texas Instruments · Comparators · SOIC-8
LM211QDR 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 | EMIT OUT | output | Emitter output terminal from comparator output stage, typically connected to ground to establish output low-voltage reference. |
| 2 | IN+ | input | Noninverting input terminal of voltage comparator; compared against inverting input to determine output state. |
| 3 | IN− | input | Inverting input terminal of voltage comparator; compared against noninverting input to determine output state. |
| 4 | VCC− | power_in | Negative supply voltage rail; 0 to −18 V for total supply voltage VCC+ − VCC− of 3.5 to 36 V. |
| 5 | BALANCE | input | Offset voltage balancing terminal for external trimming of input offset voltage; leave unconnected if balancing not used. |
| 6 | BAL/STRB | input | Strobe control input; output disabled when current-driven at −3 to −5 mA; must not be shorted to ground. |
| 7 | COL OUT | output | Open-collector output terminal; can sink up to 50 mA and handle 50 V, requires external pullup resistor. |
| 8 | VCC+ | power_in | Positive supply voltage rail; +5 V to +18 V for total supply voltage VCC+ − VCC− of 3.5 to 36 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM211QDR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
lm211qdr-etched.step/lm211qdr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm211qdr.step/lm211qdr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (42 pp, sha256
1877bb45737cb7e8, retrieved 2026-09-27, tier: lcsc) - 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).