# CBM8541AS8

**Corebai Microelectronics** · Operational Amplifier · SOP-8

CBM8541AS8 from Corebai Microelectronics, in a SOP-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. Leave floating or tie to a DC potential; not bonded to die. |
| 2 | -IN | input | Inverting analog input of the op-amp. Rail-to-rail input; common-mode range -0.1V to +5.6V with Vs=5.5V. Input bias current 1pA typ. |
| 3 | +IN | input | Non-inverting analog input of the op-amp. Rail-to-rail input; common-mode range -0.1V to +5.6V with Vs=5.5V. Input bias current 1pA typ. |
| 4 | V- | power_in | Negative supply / ground rail. Tie to GND for single-supply operation or to the negative rail for split supplies. Supply range 2.5V to 5.5V measured V+ to V-; absolute max 7.0V. |
| 5 | NC | unconnected | No internal connection. Leave floating or tie to a DC potential; not bonded to die. |
| 6 | OUT | output | Op-amp output. Rail-to-rail swing (typically within 8mV of rails at 10k load, 25mV at 2k load). Short-circuit current 55mA typ. |
| 7 | V+ | power_in | Positive supply. Operating range 2.5V to 5.5V (V+ to V-); absolute max 7.0V. Bypass with 0.1uF close to the pin. |
| 8 | NC | unconnected | No internal connection. Leave floating or tie to a DC potential; not bonded to die. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Corebai Microelectronics |
| Package | SOP-8 |
| Category | Op-amp/Cmp |
| Pins | 8 |

## Ordering variants

Same part, different packaging or reel option.

- `CBM8541AS8`

## CAD (KiCad official)

- Symbol: `CBM8541AS8`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `cbm8541as8-etched.step` / `cbm8541as8-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cbm8541as8.step` / `cbm8541as8.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Corebai Microelectronics datasheet](docs/cbm8541as8-datasheet.pdf) (21 pp, sha256 `991716a0c33f434a`, 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/cbm8541as8-datasheet.pdf)