# XL4558

**XINLUDA** · Operational Amplifier · SOP-8

XL4558 from XINLUDA, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 1OUT | output | Output of amplifier 1. |
| 2 | 1IN- | input | Inverting input of amplifier 1. |
| 3 | 1IN+ | input | Noninverting input of amplifier 1. |
| 4 | VCC- | power_in | Negative supply pin; the recommended operating range is -5 V to -15 V and the absolute maximum is -18 V. |
| 5 | 2IN+ | input | Noninverting input of amplifier 2. |
| 6 | 2IN- | input | Inverting input of amplifier 2. |
| 7 | 2OUT | output | Output of amplifier 2. |
| 8 | VCC+ | power_in | Positive supply pin; the recommended operating range is 5 V to 15 V and the absolute maximum is 18 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | XINLUDA |
| Package | SOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VCC+ supply voltage (absolute maximum) | VCC+ |  |  | 18 | V |  | 3 |
| VCC- supply voltage (absolute maximum) | VCC- | -18 |  |  | V |  | 3 |
| Differential input voltage | VID | -30 |  | 30 | V |  | 3 |
| Input voltage (any input) | VI | -15 |  | 15 | V |  | 3 |
| Output current | IO | -125 |  | 125 | mA |  | 3 |
| Operating virtual junction temperature | TJ |  |  | 150 | °C |  | 3 |
| Storage temperature | TSTG | -65 |  | 150 | °C |  | 3 |
| Supply voltage VCC+ (recommended) | VCC+ | 5 |  | 15 | V |  | 3 |
| Supply voltage VCC- (recommended), as printed in MIN/MAX columns | VCC- | -5 |  | -15 | V |  | 3 |
| Operating free-air temperature, XL4558 | TA | -40 |  | 85 | °C | XL4558 | 3 |
| Input offset voltage (25°C) | VOS |  | 0.3 | 6 | mV | VO=0V | 4 |
| Input offset voltage (full range) | VOS |  |  | 7.5 | mV | Full range (-40°C to 85°C) | 4 |
| Input offset current (25°C) | IIO |  | 5 | 200 | nA | VO=0V | 4 |
| Input offset current (full range) | IIO |  |  | 300 | nA | Full range (-40°C to 85°C) | 4 |
| Input bias current (25°C) | IIB |  | 80 | 500 | nA | VO=0V | 4 |
| Input bias current (full range) | IIB |  |  | 800 | nA | Full range (-40°C to 85°C) | 4 |
| Common-mode input voltage range (±12 as printed, symmetric) | VICR | -12 |  | 12 | V |  | 4 |
| Maximum output voltage swing (±12 as printed, symmetric) | VOUT | -12 |  | 12 | V | RL = 10kΩ | 4 |
| Maximum output voltage swing (±10 as printed, symmetric) | VOUT | -10 |  | 10 | V | RL = 2kΩ | 4 |
| Maximum output voltage swing (full range, ±10 as printed, symmetric) | VOUT | -10 |  | 10 | V | Full range (-40°C to 85°C) | 4 |
| Large-signal differential voltage amplification | AVD | 20 | 830 |  | V/mV | RL ≥ 2kΩ, VO = ±10V | 4 |
| Large-signal differential voltage amplification | AVD | 86 | 118 |  | dB | RL ≥ 2kΩ, VO = ±10V | 4 |
| Large-signal differential voltage amplification (full range) | AVD | 15 |  |  | V/mV | Full range (-40°C to 85°C) | 4 |
| Large-signal differential voltage amplification (full range) | AVD | 83 |  |  | dB | Full range (-40°C to 85°C) | 4 |
| Common-mode rejection ratio | CMRR | 70 | 94 |  | dB | (V-) + 3V < VICR < (V+), 3V | 4 |
| Supply-voltage sensitivity (ΔVIO/ΔVCC) | KSVS |  | 25 | 150 | µV/V | VCC = ±5V to ±15V | 4 |
| Supply-voltage sensitivity (ΔVIO/ΔVCC), dB form | KSVS | 76 | 92 |  | dB | VCC = ±5V to ±15V | 4 |
| Supply current (both amplifiers) | ICC |  | 2.5 | 5.6 | mA | VO = 0V, No load | 4 |
| Supply current (both amplifiers, full range) | ICC |  |  | 6.5 | mA | Full range (-40°C to 85°C) | 4 |
| Slew rate | SR | 1.1 | 2.2 |  | V/μs | VSTEP = 10V, CL = 100pF | 4 |
| Junction-to-ambient thermal resistance (PS(SOP) 8 pins) | RθJA |  | 122.9 |  | °CW |  | 4 |
| Junction-to-case (top) thermal resistance | RθJC(top) |  | 60.1 |  | °CW |  | 4 |
| Junction-to-board thermal resistance | RθJB |  | 77.5 |  | °CW |  | 4 |
| Junction-to-top characterization parameter | ψJT |  | 15.7 |  | °CW |  | 4 |
| Junction-to-board characterization parameter | ψJB |  | 76 |  | °CW |  | 4 |

## CAD (KiCad official)

- Symbol: `XL4558`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `xl4558-etched.step` / `xl4558-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `xl4558.step` / `xl4558.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [XINLUDA datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588914683923877888) (16 pp, sha256 `d866fce63d79fdf0`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/xl4558-datasheet.pdf)