CA3140AEZ

Overview

The CA3140AEZ is a single-channel BiMOS operational amplifier manufactured by Renesas Electronics. It integrates high-voltage PMOS input transistors with bipolar output stages on a monolithic chip, providing high input impedance and low bias current. Key electrical parameters include a gain-bandwidth product of 4.5 MHz, a slew rate of 9 V/us, and an input bias current of 40 pA. The device operates within a supply voltage range of 2 V to 36 V (single) or +/- 2 V to +/- 18 V (dual). It features a PDIP-8 through-hole package and supports an operating temperature range from -55 C to +125 C.

Feature Summary

• BiMOS architecture combining PMOS gate-protected input transistors for high impedance with bipolar output transistors for high drive capability.
• Internal phase compensation ensures stability in unity-gain follower configurations without external components.
• Dedicated null terminals allow for precise adjustment of input offset voltage in applications requiring zeroing.
• Built-in protection mechanisms safeguard the output stage against short circuits to power rails or ground.

Applications

• High-speed integrators
• Sample-and-hold circuits
• Transimpedance amplifiers

Procurement Notes

Verify the specific suffix 'AEZ' against the manufacturer's official datasheet to confirm package type and temperature grade alignment. Ensure the ordering information matches the exact part number required for your bill of materials. Cross-reference the RoHS status and manufacturing origin details provided in the latest component documentation before finalizing procurement orders.

Selection Notes

Select this component when high input impedance and fast transient response are critical requirements. The BiMOS technology offers superior performance compared to standard BJT op-amps in terms of input bias current. Consider the wide common-mode input voltage range that extends below the negative rail for single-supply applications. Verify that the PDIP-8 package fits the available board space and thermal constraints.

Part Context

The CA3140 series represents a classic line of BiMOS operational amplifiers known for bridging the gap between JFET and bipolar technologies. The CA3140AEZ variant specifically denotes the single-channel version in a PDIP-8 package with extended industrial temperature capabilities. This family is widely recognized for its robustness and versatility in analog signal processing tasks.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's official replacement guide or contact technical support for verified cross-references.