LM2903AVQDRQ1

@@ -0,0 +1,50 @@+# LM2903AVQDRQ1++**Texas Instruments** · Comparators · SOIC-8++LM2903AVQDRQ1 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 (typically 3 V to 36 V). Can sink >6 mA; may be wire-OR'd with 2OUT. |+| 2 | 1IN- | input | Inverting input of comparator 1. Common-mode input range includes ground (V- to V+ - 1.5 V). Differential input voltage rated to the supply voltage. |+| 3 | 1IN+ | input | Non-inverting input of comparator 1. Common-mode input range includes ground (V- to V+ - 1.5 V). |+| 4 | GND | power_in | Ground / negative supply pin (V-). Connect to system ground for single-supply operation, or to the negative rail for split-supply (±1.5 V to ±18 V) operation. |+| 5 | 2IN+ | input | Non-inverting input of comparator 2. Common-mode input range includes ground (V- to V+ - 1.5 V). |+| 6 | 2IN- | input | Inverting input of comparator 2. Common-mode input range includes ground (V- to V+ - 1.5 V). |+| 7 | 2OUT | output | Open-collector output of comparator 2. Requires an external pull-up resistor to a positive supply. Can sink >6 mA; may be wire-OR'd with 1OUT. |+| 8 | VCC | power_in | Positive supply pin (V+). Single-supply operation: 3 V to 36 V. Split-supply operation: +1.5 V to +18 V. Absolute maximum 36 V single or ±18 V split. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Op-amp/Cmp |+| Pins | 8 |++## Ordering variants++- `LM2903AVQDRQ1DR`+- `LM2903AVQDRQ1DRQ1`+- `LM2903AVQDRQ1DGK`+- `LM2903AVQDRQ1DGKR`++## CAD (KiCad official)++- Symbol: `LM2903AVQDRQ1`+- 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](https://www.ti.com/lit/ds/symlink/lm2903avqdrq1.pdf) (21 pp, sha256 `b0fe02e974eddf25`, 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).++[Datasheet PDF](docs/lm2903avqdrq1-datasheet.pdf)

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