CA3140MZ

Overview

The CA3140MZ is a general-purpose operational amplifier manufactured by Renesas Electronics Corporation. It features a single circuit configuration housed in an 8-SOIC surface-mount package. The device utilizes BiMOS technology, combining MOSFET inputs with bipolar outputs to achieve high performance. Key electrical parameters include a gain-bandwidth product of 4.5 MHz and a slew rate of 9V/µs. It operates within a supply voltage range of 4 V to 36 V and draws a supply current of 4 mA. The input bias current is specified at 10 pA, with an input offset voltage of 5 mV. The output can source up to 40 mA per channel.

Feature Summary

• BiMOS architecture integrating MOSFET input stage with bipolar output stage for high input impedance
• Single-channel general-purpose operational amplifier design
• Surface-mount 8-SOIC package construction

Applications

• High-impedance buffer circuits
• Integrator applications
• Sample-and-hold circuits

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as specifications may vary by production batch. Ensure the 8-SOIC package dimensions match PCB footprint requirements. Check for obsolescence notices or lifecycle changes prior to final procurement decisions.

Selection Notes

Select this component when high input impedance and low bias current are required in a single-channel configuration. The BiMOS structure offers advantages over pure BJT amplifiers in specific signal conditioning roles. Verify that the 4.5 MHz bandwidth and 9V/µs slew rate meet system speed requirements. Consider the 8-SOIC package constraints for thermal management and board space.

Part Context

The CA3140MZ belongs to the CA3140 series of BiMOS operational amplifiers. This family is characterized by the combination of MOSFET input transistors and bipolar output stages. The series provides high input impedance suitable for precision analog signal processing tasks requiring minimal loading on source circuits.

Replacement Considerations

CA3140MZ96 is listed as a similar replacement option.