AZ4558CMTR-E1

Overview

The AZ4558CMTR-E1 is a dual bipolar operational amplifier manufactured by Diodes Incorporated, utilizing the SOIC-8 surface-mount package. It features an internally frequency compensated design with a typical large signal voltage gain of 100dB and a gain bandwidth product of 5.5MHz at 10kHz. The device supports a maximum supply voltage of ±20V or up to 36V single supply, operating within a temperature range of -40°C to 85°C. Electrical characteristics include a slew rate of 1.8 V/µs, input bias current of 70nA to 400nA, and equivalent input noise voltage density of 10 nV/√Hz.

Feature Summary

• Internally frequency compensated for stability without external components
• High gain and phase match between amplifiers
• Low equivalent input noise voltage
• Pin-to-pin compatible with MC1458

Applications

• Audio AC-3 decoder systems
• Audio amplifiers

Procurement Notes

Verify the component origin as BCD Semiconductor Manufacturing Limited despite the Diodes Incorporated branding. Confirm the E1 suffix indicates lead-free compliance and RoHS adherence. Ensure the CMTR designation matches the required tape and reel packaging format for automated assembly processes.

Selection Notes

Select this component when high channel separation and matched gain-phase characteristics are required in a dual op-amp configuration. The internal frequency compensation simplifies circuit design compared to uncompensated alternatives. Verify that the 5.5MHz gain bandwidth product meets the specific frequency response requirements of the target application.

Part Context

This part belongs to the AZ4558 series of dual bipolar operational amplifiers. It serves as a direct pin-compatible replacement for the industry-standard MC1458. The device is designed for general-purpose analog signal processing where moderate speed and low noise performance are prioritized over ultra-high precision specifications.

Replacement Considerations

The datasheet explicitly states pin-to-pin compatibility with the MC1458. Designers should verify electrical parameter tolerances against the original MC1458 specifications to ensure functional equivalence in existing circuits.