CA1458E

Overview

The CA1458E is a dual operational amplifier manufactured by Harris Corporation. It features two high-gain, internally compensated op-amps in an 8-pin package. The device operates on a supply voltage range of 3V to 30V. Key electrical specifications include a maximum input offset voltage of 7500µV and a slew rate typical of general-purpose bipolar amplifiers. It supports output short-circuit protection and latch-free operation.

Feature Summary

• Dual operational amplifier configuration with internal phase compensation for stability
• Output short circuit protection and latch-free operation capabilities
• Wide common-mode voltage range compatible with single or dual supplies

Applications

• Military applications requiring high-gain performance
• Industrial control systems utilizing general-purpose amplification
• Commercial electronic circuits needing stable DC amplification

Procurement Notes

Verify the manufacturer origin as Harris Corporation or its successors (e.g., Intersil, Renesas) due to corporate acquisitions. Confirm RoHS compliance status, as older Harris batches may not meet current environmental standards. Check for lead-free marking if required for specific assembly processes. Ensure the package type matches the PCB footprint requirements.

Selection Notes

Select this component when a dual op-amp solution with internal compensation is needed without external frequency stabilization components. It is suitable for general-purpose analog signal processing where moderate bandwidth and high gain are prioritized over ultra-low noise or high-speed performance. Consider the bipolar technology characteristics regarding input bias currents.

Part Context

The CA1458E belongs to the family of high-gain operational amplifiers produced by Harris Semiconductor. It is functionally similar to other industry-standard dual op-amps like the LM1458. The 'E' suffix typically denotes a specific temperature range or commercial grade variant within the Harris product line, distinct from military-grade parts like the CA1458M.

Replacement Considerations

Compatible substitutes include the LM1458 and TL082CDR (with pinout verification). Ensure functional equivalence regarding offset voltage and slew rate. Verify that replacement packages match the original 8-PDIP form factor.