# MC4558CPT

**STMicroelectronics** · Operational Amplifier · TSSOP-8

MC4558CPT from STMicroelectronics, in a TSSOP-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 | Output 1 | output | Output of amplifier 1, short-circuit protected with infinite short-circuit duration. |
| 2 | Inverting input 1 | input | Inverting input of amplifier 1; input voltage must not exceed ±15 V or the magnitude of Vcc, whichever is less. |
| 3 | Non-inverting input 1 | input | Non-inverting input of amplifier 1; input voltage must not exceed ±15 V or the magnitude of Vcc, whichever is less. |
| 4 | VCC- | power_in | Negative supply voltage; supply range is ±2 V to ±20 V operating, ±22 V absolute maximum. |
| 5 | Non-inverting input 2 | input | Non-inverting input of amplifier 2; input voltage must not exceed ±15 V or the magnitude of Vcc, whichever is less. |
| 6 | Inverting input 2 | input | Inverting input of amplifier 2; input voltage must not exceed ±15 V or the magnitude of Vcc, whichever is less. |
| 7 | Output 2 | output | Output of amplifier 2, short-circuit protected with infinite short-circuit duration. |
| 8 | VCC+ | power_in | Positive supply voltage; supply range is ±2 V to ±20 V operating, ±22 V absolute maximum. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TSSOP-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 |
|---|---|---|---|---|---|---|---|
| Supply voltage | VCC | -22 |  | 22 | V | Printed as ±22 V in Table 2 (single value for both grades) | 2 |
| Input voltage | Vi | -15 |  | 15 | V | Relative to midpoint of VCC+ and VCC-; must not exceed 15 V or magnitude of VCC, whichever is less | 2 |
| Differential input voltage | Vid | -30 |  | 30 | V | Non-inverting input with respect to inverting input | 2 |
| Power dissipation | Ptot |  |  | 680 | mW |  | 2 |
| Operating free-air temperature range (MC4558C column) | Toper | 0 |  | 70 | °C | MC4558C grade (0 to +70 °C), applies to MC4558CPT | 2 |
| Thermal resistance junction-to-ambient, TSSOP8 | Rthja |  | 120 |  | °C/W | Junction-to-ambient, TSSOP8 package | 2 |
| ESD HBM |  |  |  | 500 | V | Human body model, 100 pF discharged through 1.5 kΩ | 2 |
| ESD MM |  |  |  | 200 | V | Machine model, 200 pF, no external series resistor | 2 |
| ESD CDM |  |  |  | 1500 | V | Charged device model | 2 |
| Supply voltage (operating range) | VCC | 2 |  | 20 | V | Printed as ±2 (min) and ±20 (max) in Table 3 | 2 |
| Input offset voltage | Vio |  |  | 15 | mV | VCC = ±15 V, Rs ≤ 10kΩ, Tamb = +25°C | 4 |
| Input offset voltage | Vio |  |  | 6 | mV | VCC = ±15 V, Rs ≤ 10kΩ, Tmin ≤ Tamb ≤ Tmax | 4 |
| Input offset current | Iio |  | 20 | 100 | nA | VCC = ±15 V, Tamb = +25°C | 4 |
| Input offset current | Iio |  |  | 200 | nA | VCC = ±15 V, Tmin ≤ Tamb ≤ Tmax | 4 |
| Input bias current | Iib |  | 50 | 400 | nA | VCC = ±15 V, Tamb = +25°C | 4 |
| Input bias current | Iib |  |  | 500 | nA | VCC = ±15 V, Tmin ≤ Tamb ≤ Tmax | 4 |
| Large signal voltage gain | Avd | 50 | 200 |  | V/mV | VCC = ±15 V, RL = 2kΩ, Vo = ±10V, Tamb = +25°C | 4 |
| Large signal voltage gain | Avd | 25 |  |  | V/mV | VCC = ±15 V, RL = 2kΩ, Vo = ±10V, Tmin ≤ Tamb ≤ Tmax | 4 |
| Supply voltage rejection ratio | SVR | 77 | 90 |  | dB | VCC = ±15 V, Rs ≤ 10kΩ, Tamb = +25°C | 4 |
| Supply voltage rejection ratio | SVR | 77 |  |  | dB | VCC = ±15 V, Rs ≤ 10kΩ, Tmin ≤ Tamb ≤ Tmax | 4 |
| Supply current, all amplifiers, no load | ICC |  | 2.3 | 4.5 | mA | VCC = ±15 V, no load, Tamb = +25°C | 4 |
| Supply current, all amplifiers, no load | ICC |  |  | 6 | mA | VCC = ±15 V, no load, Tmin ≤ Tamb ≤ Tmax | 4 |
| Input common mode voltage range | Vicm | -12 |  | 12 | V | VCC = ±15 V, Tamb = +25°C | 4 |
| Common-mode rejection ratio | CMR | 70 | 90 |  | dB | VCC = ±15 V, Rs ≤ 10kΩ, Tamb = +25°C | 4 |
| Common-mode rejection ratio | CMR | 70 |  |  | dB | VCC = ±15 V, Rs ≤ 10kΩ, Tmin ≤ Tamb ≤ Tmax | 4 |
| Output short-circuit current | Ios | 10 | 20 | 40 | mA | VCC = ±15 V | 4 |
| Output voltage swing | Vo | 12 | 14 |  | V | VCC = ±15 V, Tamb = +25°C, RL = 10kΩ | 4 |
| Output voltage swing | Vo | 10 | 13 |  | V | VCC = ±15 V, Tamb = +25°C, RL = 2kΩ | 4 |
| Output voltage swing | Vo | 12 |  |  | V | VCC = ±15 V, Tmin ≤ Tamb ≤ Tmax, RL = 10kΩ | 4 |
| Output voltage swing | Vo | 10 |  |  | V | VCC = ±15 V, Tmin ≤ Tamb ≤ Tmax, RL = 2kΩ | 4 |
| Slew rate | SR | 1.5 | 2.2 |  | V/µs | Vi = ±10, RL = 2kΩ, CL = 100pF, Tamb = 25°C, unity gain | 4 |
| Input resistance | Ri | 0.3 | 2 |  | MΩ |  | 4 |

## CAD (KiCad official)

- Symbol: `MC4558CPT`
- Footprint: `Package_SO:TSSOP-8_3x3mm_P0.65mm`
- 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files: `mc4558cpt-etched.step` / `mc4558cpt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mc4558cpt.step` / `mc4558cpt.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881544487952384) (11 pp, sha256 `396f57a6f635dcdb`, retrieved 2026-10-21, 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/mc4558cpt-datasheet.pdf)