LM2904AMM

@@ -0,0 +1,50 @@+# LM2904AMM++**HGSEMI** · Operational Amplifier · MSOP-8++LM2904AMM from HGSEMI, in a MSOP-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 | Output of op-amp channel 1. Can source ~40 mA and sink ~20 mA at V+=15V; output voltage swing reaches near VEE and up to (V+ - 1.5V). |+| 2 | 1IN- | input | Inverting input of op-amp channel 1. Input bias current typ. 45 nA. Common-mode range 0 V to (V+ - 1.5V). |+| 3 | 1IN+ | input | Non-inverting input of op-amp channel 1. Input bias current typ. 45 nA. Common-mode range extends to the negative supply (ground in single-supply operation). |+| 4 | VEE | power_in | Negative supply / ground pin. Tie to GND for single-supply operation, or to V- for split-supply operation. Absolute max supply span 32V (or ±16V). |+| 5 | 2IN+ | input | Non-inverting input of op-amp channel 2. Input bias current typ. 45 nA. Common-mode range extends to the negative supply. |+| 6 | 2IN- | input | Inverting input of op-amp channel 2. Input bias current typ. 45 nA. Common-mode range 0 V to (V+ - 1.5V). |+| 7 | 2OUT | output | Output of op-amp channel 2. Can source ~40 mA and sink ~20 mA at V+=15V; short-circuit current ~40-60 mA at V+=15V, Ta=25°C. |+| 8 | VCC | power_in | Positive supply pin. Accepts 3V to 32V (single supply) or ±1.5V to ±16V (split supply). Supply current typ. 1 mA at V+=30V; 0.5 mA at V+=5V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | HGSEMI |+| Package | MSOP-8 |+| Category | Op-amp/Cmp |+| Pins | 8 |++## Ordering variants++- `LM2904AMM/TR`+- `LM2904AMMN`+- `LM2904AMMM/TR`++## CAD (KiCad official)++- Symbol: `LM2904AMM`+- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`+- 3D model: MSOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [HGSEMI datasheet](docs/lm2904amm-datasheet.pdf) (10 pp, sha256 `63c3bb047114641d`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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/lm2904amm-datasheet.pdf)

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