CA3140AMZ

Instrumentation, Op Amps, Buffer Amps Overview

The CA3140AMZ is a single-channel general-purpose operational amplifier manufactured by Renesas Electronics. It features a gain-bandwidth product of 4.5 MHz and a slew rate of 9 V/us. The device operates with input bias current of 40 pA and input offset voltage of 5 mV. Supply voltage ranges from 2 V to 18 V (dual) or 4 V to 36 V (single). It delivers 40 mA output current per channel with 70 dB CMRR and 80 dB PSRR. Input voltage noise density is 40 nV/sqrt Hz. Operating temperature spans -55 C to +125 C in an SOIC-8 package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Utilizes BiFET technology for low input bias current
• Provides high slew rate performance for signal fidelity
• Supports wide supply voltage operation
• Features rail-to-rail output swing capability

Instrumentation, Op Amps, Buffer Amps Applications

• General-purpose analog signal conditioning
• Active filter circuits
• Buffer amplification stages
• Transducer interfaces

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'Z' against the manufacturer's official datasheet to confirm RoHS compliance status and exact electrical tolerances. Ensure the SOIC-8 package dimensions match your PCB footprint requirements. Confirm that the operating temperature range meets your environmental specifications. Cross-reference the part number with authorized distributors to avoid counterfeit components.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a single-channel op amp with moderate bandwidth and low bias current is required. Compare the 4.5 MHz gain-bandwidth product against application needs. Evaluate the 9 V/us slew rate for dynamic signal handling. Consider the SOIC-8 package for surface-mount assembly constraints. Verify power supply compatibility within the specified voltage limits.

Instrumentation, Op Amps, Buffer Amps Part Context

The CA3140 series represents a family of BiFET operational amplifiers known for combining FET input characteristics with bipolar output drive capabilities. The CA3140AMZ is a specific variant within this lineage, offering enhanced performance metrics compared to earlier iterations. It serves as a direct replacement for legacy designs requiring low input current without sacrificing output drive strength.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The CA3140AM is listed as a discontinued direct substitute. Verify pinout compatibility before substitution. Check if the older variant meets the same electrical specifications for your design.