LM2903DT

@@ -0,0 +1,51 @@+# LM2903DT++**STMicroelectronics** · Comparators · SO-8++LM2903DT from STMicroelectronics, in a SO-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 | OUT1 | output | Open-collector output of comparator 1. Requires an external pull-up resistor to a positive supply. Sinks current when the non-inverting input is below the inverting input. |+| 2 | VCC | power_in | Positive supply voltage. Operating range 2 V to 36 V single supply, or ±1 V to ±18 V dual supply. |+| 3 | IN1+ | input | Non-inverting input of comparator 1. Low input bias current (typ. 25 nA). |+| 4 | IN1- | input | Inverting input of comparator 1. Input common-mode range extends down to the negative supply (ground in single-supply operation). |+| 5 | IN2+ | input | Non-inverting input of comparator 2. Low input bias current (typ. 25 nA). |+| 6 | IN2- | input | Inverting input of comparator 2. Input common-mode range extends down to the negative supply (ground in single-supply operation). |+| 7 | GND | power_in | Ground / negative supply pin. Connect to 0 V in single-supply operation or to V- in dual-supply operation. |+| 8 | OUT2 | output | Open-collector output of comparator 2. Requires an external pull-up resistor to a positive supply. Sinks current when the non-inverting input is below the inverting input. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SO-8 |+| Category | Op-amp/Cmp |+| Pins | 8 |++## Ordering variants++- `LM2903DTDT`+- `LM2903DTD`+- `LM2903DTDR`+- `LM2903DTST`+- `LM2903DTN`++## CAD (KiCad official)++- Symbol: `LM2903DT`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SO-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/lm2903dt.pdf) (19 pp, sha256 `b7a4a6d1de452b65`, 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/lm2903dt-datasheet.pdf)

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