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LM2904DR
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UMW Operational Amplifier, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+48@@ -0,0 +1,48 @@+# LM2904DR++**UMW** · Operational Amplifier · SOIC-8++LM2904DR from UMW, 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 | OUT_A | output | Output of amplifier A. Push-pull output stage; can source ~40 mA and sink ~20 mA typical (short-circuit current typically ±40 mA at VS=10 V). |+| 2 | IN-_A | input | Inverting input of amplifier A. Input bias current typ -20 nA, input offset current typ 2 nA. |+| 3 | IN+_A | input | Non-inverting input of amplifier A. Common-mode input range: (V-) to (V+)-1.5 V. |+| 4 | GND | power_in | Negative supply / ground (V-). Connect to 0 V for single-supply operation, or to negative rail (down to -13 V) for dual-supply operation. |+| 5 | IN+_B | input | Non-inverting input of amplifier B. Common-mode input range: (V-) to (V+)-1.5 V. |+| 6 | IN-_B | input | Inverting input of amplifier B. Input bias current typ -20 nA, input offset current typ 2 nA. |+| 7 | OUT_B | output | Output of amplifier B. Push-pull output stage; can source ~40 mA and sink ~20 mA typical (short-circuit current typically ±40 mA at VS=10 V). |+| 8 | V+ | power_in | Positive supply. Single-supply operation 3 V to 26 V, or dual-supply up to ±13 V. Quiescent current typ 350 uA per amplifier at VO=2.5 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW |+| Package | SOIC-8 |+| Category | Op-amp/Cmp |+| Pins | 8 |++## Ordering variants++- `LM2904DRDR`+- `LM2904DRPWR`++## CAD (KiCad official)++- Symbol: `LM2904DR`+- 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:** [UMW datasheet](docs/lm2904dr-datasheet.pdf) (9 pp, sha256 `5aeaa330435e1281`, retrieved 2026-08-17, tier: lcsc)+- **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/lm2904dr-datasheet.pdf)
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