STMicroelectronics MC4558IN

Overview

MC4558IN from STMicroelectronics is a dual bipolar operational amplifier in an 8-pin DIP package, featuring 5.5 MHz gain-bandwidth product, ±12 V output swing into 10 kΩ, and 2.2 V/µs slew rate at ±15 V supply. It provides matched gain/phase between channels and short-circuit protection, used in audio preamplifiers, active filters, and industrial sensor signal conditioning.

For engineers reviewing the MC4558IN datasheet, MC4558IN pinout, MC4558IN application, or MC4558IN equivalent, key selection criteria include input offset voltage (1–6 mV), supply current (2.3–6 mA), common-mode rejection (70–90 dB), thermal resistance (85 °C/W), and SO-8/TSSOP8 package variants for space-constrained designs.

Technical Context

The MC4558IN implements two independent high-slew-rate bipolar op-amps on a single monolithic die with internal frequency compensation for unity-gain stability. Its architecture delivers 120 dB channel separation and 0.008% THD at 1 kHz, enabling low-distortion analog signal processing without external compensation networks.

Designed for dual-channel precision amplification, it operates over ±2 V to ±20 V supplies and supports rail-to-rail input common-mode range (±12 V) with 75 Ω output impedance - suitable for driving moderate loads while maintaining phase margin above 60° across 100 kHz to 5.5 MHz.

Key Specifications

Pinout & Package

MC4558IN uses an 8-pin plastic DIP (Dual In-line Package) with 2.54 mm lead pitch, 9.8 mm body width, and 85 °C/W junction-to-ambient thermal resistance - optimized for through-hole prototyping and legacy PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual operational amplifier applications.

Compared with LM358N and MC1458CN, MC4558IN delivers 5.5× higher bandwidth, 7× faster slew rate, and integrated short-circuit protection - making it optimal for audio, active filtering, and real-time sensor conditioning where dynamic response and reliability are critical.

Availability

MC4558IN is available at Aetrix Electronics and suitable for audio preamplifiers, active bandpass filters, and industrial sensor signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC4558IN includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The MC4558 belongs to ST's legacy bipolar op-amp product line, engineered specifically for dual-channel precision amplification in cost-sensitive industrial and audio applications where reliability and pin compatibility matter.

FAQ

What is the maximum supply voltage for MC4558IN?

The absolute maximum supply voltage is ±22 V, but recommended operating range is ±2 V to ±20 V. Operation beyond ±20 V risks permanent damage due to junction breakdown, while voltages below ±2 V may cause insufficient output swing and degraded CMRR. Thermal derating applies above 70°C ambient.

Does MC4558IN require external compensation capacitors?

No - MC4558IN is internally compensated for unity-gain stability. Adding external compensation capacitors is unnecessary and may degrade transient response or cause instability. The device achieves >60° phase margin across its full 5.5 MHz GBP without external components.

How does MC4558IN handle output short circuits?

MC4558IN features built-in short-circuit protection that limits output current to 10–40 mA and prevents thermal runaway. It sustains indefinite short-circuit conditions at room temperature without latch-up or parameter shift, recovering fully once the fault is removed - eliminating need for external current-limiting resistors.

Can MC4558IN replace LM358 in existing designs?

Yes - MC4558IN is pin-to-pin compatible with LM358 and offers superior performance: 5.5 MHz GBP vs. 1 MHz, 2.2 V/µs vs. 0.3 V/µs slew rate, and lower THD (0.008% vs. 0.02%). No schematic or layout changes are needed, though decoupling capacitor values should remain ≥100 nF for stability.