LM1458CM

Overview

The LM1458CM is a dual general-purpose operational amplifier manufactured by Fairchild Semiconductor. It features internal frequency compensation and short-circuit protection, eliminating the need for external components. The device operates within a supply voltage range of ±3V to ±18V (6V to 36V total). Key electrical characteristics include a gain-bandwidth product of 1 MHz, a slew rate of 0.5 V/µs, and an input offset voltage maximum of 12 mV. It provides a common-mode rejection ratio up to 90 dB and operates reliably without latch-up across a temperature range of 0°C to +70°C.

Feature Summary

• Internal frequency compensation eliminates the requirement for external capacitors or resistors.
• Integrated short-circuit protection safeguards the output stage against overload conditions.
• High common-mode voltage range combined with latch-up immunity ensures stable operation as a voltage follower.

Applications

• Voltage followers
• Integrator circuits
• Summing amplifiers
• General feedback applications

Procurement Notes

Verify that the ordering suffix 'CM' corresponds specifically to the 8-SOP package variant as defined in the manufacturer's ordering information table. Confirm the component originates from Fairchild Semiconductor documentation. Ensure the specific lot matches the required operating temperature range of 0°C to +70°C before integration into the design.

Selection Notes

Select this component when a dual-channel solution with inherent stability is required. The absence of latch-up makes it suitable for single-supply or wide-range dual-supply environments where voltage followers are utilized. Consider the 0.5 V/µs slew rate and 1 MHz bandwidth limits for signal processing requirements.

Part Context

This part belongs to the LM1458/LM1458C series of dual operational amplifiers. It shares functional similarities with other industry-standard dual op-amps but is distinguished by its specific bipolar process characteristics and Fairchild Semiconductor manufacturing specifications. The 'CM' designation identifies the surface-mount SOP packaging option within this family.

Replacement Considerations

LM1458CN

FAQ

Does the LM1458CM require external components for frequency compensation?

No, the device includes internal frequency compensation and does not require external components for this purpose.

What is the maximum power supply voltage for the LM1458CM?

The absolute maximum power supply voltage is ±18 V.