component
ws742904m-8
Public Unreviewedby Ray
WILLSEMI Will Semicon Operational Amplifier, MSOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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markdownWS742904M-8
WILLSEMI Will Semicon · Operational Amplifier · MSOP-8
WS742904M-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 | Amplifier A output. Rail-to-rail output swing; typical short-circuit current 20 mA (source) / 22 mA (sink) with VS=28 V. |
| 2 | -INA | input | Amplifier A inverting input. Differential input voltage rating ±32 V; input bias current ~20 pA typical. |
| 3 | +INA | input | Amplifier A non-inverting input. Common-mode input range V- to V+ − 2 V; includes ground on single supply. |
| 4 | V- | power_in | Negative supply / ground for single-supply operation. Total supply (V+ − V-) up to 32 V absolute maximum (28 V operating). |
| 5 | +INB | input | Amplifier B non-inverting input. Common-mode input range V- to V+ − 2 V; includes ground on single supply. |
| 6 | -INB | input | Amplifier B inverting input. Differential input voltage rating ±32 V; input bias current ~20 pA typical. |
| 7 | OUTB | output | Amplifier B output. Rail-to-rail output swing; typical short-circuit current 20 mA (source) / 22 mA (sink) with VS=28 V. |
| 8 | V+ | power_in | Positive supply. Single-supply operating range 3 V to 28 V (32 V absolute maximum V+ − V-). Quiescent current ~100 µA 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.
WS742904M-8/TRWS742904S-8/TR
CAD (KiCad official)
- Symbol:
WS742904M-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 (11 pp, sha256
716c50d54d8d2d35, 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).