component
njm4558
Public Made by Adomby adom
KEXIN Operational Amplifier, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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README
markdownNJM4558
KEXIN · Operational Amplifier · SOP-8
NJM4558 from KEXIN, 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 | A_OUT | output | Amplifier A output. Class-AB output stage capable of swinging ±14 V typ. into a ≥10 kΩ load (±13 V typ. into ≥2 kΩ) at ±15 V supply. |
| 2 | A_IN- | input | Amplifier A inverting input. Input bias current 50 nA typ., input offset current 5 nA typ., input resistance 5 MΩ typ. |
| 3 | A_IN+ | input | Amplifier A non-inverting input. Common-mode input range ±12 V typ. at ±15 V supply; differential input voltage rated to ±30 V absolute maximum. |
| 4 | V- | power_in | Negative supply rail. Rated -18 V absolute maximum relative to V+; shared by both amplifier channels. Typical operating current 3.5 mA at ±15 V. |
| 5 | B_IN+ | input | Amplifier B non-inverting input. Common-mode input range ±12 V typ. at ±15 V supply. |
| 6 | B_IN- | input | Amplifier B inverting input. Input bias current 50 nA typ., input offset current 5 nA typ., input resistance 5 MΩ typ. |
| 7 | B_OUT | output | Amplifier B output. Class-AB output stage capable of swinging ±14 V typ. into a ≥10 kΩ load (±13 V typ. into ≥2 kΩ) at ±15 V supply. |
| 8 | V+ | power_in | Positive supply rail. Rated +18 V absolute maximum relative to V-; shared by both amplifier channels. Typical operating current 3.5 mA at ±15 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KEXIN |
| Package | SOP-8 |
| Category | Op-amp/Cmp |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
NJM4558 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KEXIN datasheet (2 pp, sha256
239207a261cbda01, 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).
Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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