CA3420EZ

Overview

The CA3420EZ is a single-channel general-purpose operational amplifier manufactured by Renesas Electronics. It features a gain-bandwidth product of 500 kHz and a slew rate of 500 mV/us. The device operates within a supply voltage range of 1 V to 20 V, with a maximum dual supply of 10 V. Key electrical parameters include an input offset voltage of 10 mV, input bias current of 0.05 pA, and common-mode rejection ratio of 100 dB. It draws 1 mA of operating current and provides 2.6 mA output current per channel. The component is housed in an 8-PDIP package and supports through-hole mounting.

Feature Summary

• Low input bias current capability suitable for high-impedance signal sources
• Wide supply voltage operation supporting flexible power system designs
• High common-mode rejection ratio for improved noise immunity

Applications

• General-purpose analog signal conditioning circuits
• Sensor interface applications requiring low bias current
• Industrial control systems operating across extended temperature ranges

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm exact performance grades and packaging variations. Confirm RoHS compliance status as indicated in technical specifications, noting potential regulatory differences between manufacturing eras. Validate that the procurement source provides authentic Renesas Electronics products to ensure reliability and traceability for critical electronic assemblies.

Selection Notes

Select this component when a single-channel op-amp with low input bias current is required for precision applications. Consider the 500 kHz bandwidth limit for frequency response requirements. Ensure the 8-PDIP through-hole package aligns with the target PCB layout constraints. Evaluate the 10 mV input offset voltage against system accuracy needs before finalizing the design choice.

Part Context

The CA3420EZ belongs to the CA3420 series of operational amplifiers produced by Renesas Electronics. This series represents legacy general-purpose amplifiers designed for robust performance in various analog applications. The part is distinct from higher-speed variants like the CA3140, focusing instead on low bias current characteristics within a standard DIP footprint.

Replacement Considerations

Public confirmed substitute part numbers: CA3420E.