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WS72042M-8
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WILLSEMI Will Semicon Operational Amplifier, MSOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+52@@ -0,0 +1,52 @@+# WS72042M-8++**WILLSEMI Will Semicon** · Operational Amplifier · MSOP-8++WS72042M-8 from WILLSEMI Will Semicon, 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 | OUTA | output | Op-amp A output. Rail-to-rail output; short-circuit current typ. 12-20 mA sink/source. Closed-loop output impedance ~0.7 Ω at G=1, 1 kHz. |+| 2 | -INA | input | Inverting input of op-amp A. Rail-to-rail input; input bias current <10 pA, input resistance >1 TΩ. |+| 3 | +INA | input | Non-inverting input of op-amp A. Rail-to-rail input, common-mode range (V-)-0.3 V to (V+)+0.3 V. |+| 4 | V- | power_in | Negative supply rail (or GND in single-supply operation). Total supply (V+ − V-) rated 1.6 V to 5.5 V (abs max 6 V). |+| 5 | +INB | input | Non-inverting input of op-amp B. Rail-to-rail input, common-mode range (V-)-0.3 V to (V+)+0.3 V. |+| 6 | -INB | input | Inverting input of op-amp B. Rail-to-rail input; input bias current <10 pA, input resistance >1 TΩ. |+| 7 | OUTB | output | Op-amp B output. Rail-to-rail output; short-circuit current typ. 12-20 mA sink/source. Closed-loop output impedance ~0.7 Ω at G=1, 1 kHz. |+| 8 | V+ | power_in | Positive supply rail. Total supply (V+ − V-) 1.6 V to 5.5 V (abs max 6 V). Quiescent current 610 nA typ. per amplifier. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | WILLSEMI Will Semicon |+| Package | MSOP-8 |+| Category | Op-amp/Cmp |+| Pins | 8 |++## Ordering variants++Same part, different packaging or reel option.++- `WS72042M-8`+- `WS72042M-8/TR`+- `WS72042M-8S-8`+- `WS72042M-8S-8/TR`++## CAD (KiCad official)++- Symbol: `WS72042M-8`+- 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:** [WILLSEMI Will Semicon datasheet](docs/ws72042m-8-datasheet.pdf) (12 pp, sha256 `a642491a6cab9d37`, 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/ws72042m-8-datasheet.pdf)
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