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cbm8551as8
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Corebai Microelectronics Precision OpAmps, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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markdownCBM8551AS8
Corebai Microelectronics · Precision OpAmps · SOIC-8
CBM8551AS8 from Corebai Microelectronics, 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 | NC | unconnected | No internal connection. May be left floating or tied to any potential within the absolute maximum ratings; typically left unconnected. |
| 2 | IN- | input | Inverting analog input of the op-amp. Rail-to-rail common-mode range extending 100mV beyond the supply rails (VSS-0.1V to VDD+0.1V). Very low input bias current (~20pA typical). |
| 3 | IN+ | input | Non-inverting analog input of the op-amp. Rail-to-rail common-mode range extending 100mV beyond the supply rails (VSS-0.1V to VDD+0.1V). Very low input bias current (~20pA typical). |
| 4 | VSS | power_in | Negative supply rail / ground. Total supply (VDD-VSS) range 1.8V to 5.5V (absolute max 7.5V). Bypass to VDD with a 0.1µF ceramic capacitor placed close to the device; for dual-supply operation bypass both VDD and VSS to ground separately. |
| 5 | NC | unconnected | No internal connection. May be left floating or tied to any potential within the absolute maximum ratings; typically left unconnected. |
| 6 | OUT | output | Op-amp output. Rail-to-rail output swing; typically within 5mV of the rails into >100kΩ loads and within 60mV into 10kΩ. Short-circuit current ~60mA, output current up to ~65mA. |
| 7 | VDD | power_in | Positive supply rail. Single-supply range 1.8V to 5.5V referenced to VSS (absolute max VDD-VSS = 7.5V). Place a 0.1µF ceramic bypass capacitor close to this pin. |
| 8 | NC | unconnected | No internal connection. May be left floating or tied to any potential within the absolute maximum ratings; typically left unconnected. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Corebai Microelectronics |
| Package | SOIC-8 |
| Category | Op-amp/Cmp |
| Pins | 8 |
Ordering variants
CBM8551AS8CBM8551AS8AST5
CAD (KiCad official)
- Symbol:
CBM8551AS8 - 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: Corebai Microelectronics datasheet (None pp, sha256
f2188dc09cf52931, 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).