CA3240AEZ

Overview

The CA3240AEZ is a dual operational amplifier from the CA3240 series, manufactured by Renesas Electronics Corporation. It integrates PMOS input transistors and bipolar output stages on a single monolithic chip. The device features a gain-bandwidth product of 4.5 MHz and a slew rate of 9 V/µs. Input bias current is specified at 10 pA with an input offset voltage of 2 mV. It operates within a supply voltage range of 4 V to 36 V and delivers an output current of 40 mA per channel. Total supply current for both channels is 8 mA. The component is housed in an 8-PDIP package and supports through-hole mounting.

Feature Summary

• Combines high input impedance gate-protected PMOS input transistors with bipolar output stages for wide common-mode input voltage range and high output current capability.
• Provides rail-to-rail-like output swing capability relative to supply rails due to bipolar output stage design.
• Compatible with industry standard 1458 operational amplifiers in similar packages.

Applications

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

Procurement Notes

Verify RoHS compliance status as the CA3240AE may be non-compliant; confirm specific revision details with the manufacturer. Check for obsolescence notices or last-time-buy notifications for older variants like CA3240AE. Ensure the ordering suffix 'Z' corresponds to the required packaging and environmental specifications. Validate pinout compatibility if replacing legacy components.

Selection Notes

Select this component when high input impedance and low bias current are required alongside moderate bandwidth. The dual-channel configuration simplifies designs needing two independent amplifiers. Consider the 8-PDIP package constraints for PCB layout. Compare against single-channel alternatives like CA3140 if only one amplifier is needed. Verify supply voltage requirements align with the 4V to 36V operating range.

Part Context

The CA3240 series represents a dual-channel version of the popular CA3140 BiMOS operational amplifier. It merges MOSFET input technology with bipolar output drive capabilities. This architecture offers superior input characteristics compared to pure bipolar op-amps while maintaining robust output performance. The series is designed for general-purpose applications requiring high input impedance and wide dynamic range.

Replacement Considerations

• CA3240EZ