CA3240EZ

Instrumentation, Op Amps, Buffer Amps Overview

The CA3240EZ is a dual BiMOS operational amplifier manufactured by Renesas Electronics Corporation. It features a gain-bandwidth product of 4.5 MHz and a slew rate of 9 V/us. The device operates with a supply voltage range of 2 V to 18 V (single) or 4 V to 36 V (dual). Key electrical parameters include an input bias current of 40 pA, input offset voltage of 5 mV, and output current capability of 40 mA per channel. It utilizes an 8-pin PDIP package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Combines PMOS gate-protected input transistors for high input impedance with bipolar output transistors for high current drive.
• Provides a wide common-mode input voltage range that extends typically to 0.5V below the negative supply rail.
• Delivers wide output voltage swing and robust output current capability through its bipolar output stage.

Instrumentation, Op Amps, Buffer Amps Applications

• General-purpose analog signal processing circuits
• High-impedance sensor interface applications
• Audio pre-amplifier stages

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the manufacturer designation on the component marking, as production may be attributed to Renesas Electronics or Intersil depending on the manufacturing era. Confirm the specific suffix 'E' indicates the lead-free and RoHS-compliant variant if environmental compliance is required for the assembly process. Ensure the 8-PDIP package matches the target PCB footprint requirements.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a dual-channel configuration with MOSFET inputs is necessary to minimize loading effects on high-impedance sources. It serves as a functional alternative to standard JFET op-amps where higher output current drive is needed compared to pure FET-input devices. Consider the 4.5 MHz bandwidth limit for high-speed signal integrity requirements.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the CA3240A series, which are dual versions of the popular CA3140 single-channel operational amplifiers. The series integrates BiMOS technology to merge the advantages of MOS and bipolar transistors on a single monolithic chip. It maintains pin compatibility with industry-standard 1458 operational amplifiers in similar packages.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct substitutes include the CA3240EZ from Renesas. Other compatible options found in public records include NTE7141 and NTE7144 from NTE Electronics.