CA3140AM96

Overview

The CA3140AM96 is a BiMOS operational amplifier featuring a PMOS input stage and bipolar output. It operates on supply voltages from 4V to 36V (single or dual). Key electrical parameters include a gain-bandwidth product of 4.5 MHz, a slew rate of 9 V/µs, an input bias current of 10 pA, and an input resistance of 1.5 TΩ. The device provides short-circuit protection and includes offset nulling terminals.

Feature Summary

• Integrates high-voltage PMOS transistors with high-voltage bipolar transistors for high input impedance and low input current.
• Features internal phase compensation for stable unity-gain follower operation.
• Includes built-in protection against damage from load terminal short circuits to either supply rail or ground.
• Allows common mode input voltage capability down to 0.5V below the negative supply terminal.

Applications

• Ground-referenced single supply amplifiers in automobile and portable instrumentation
• Sample and hold amplifiers
• Photocurrent instrumentation
• Active filters
• Comparators

Procurement Notes

Verify that the ordering suffix '96' corresponds to the tape and reel packaging format as specified in the manufacturer's ordering information. Confirm RoHS compliance status if required by your assembly process, noting that specific Pb-free variants may have distinct soldering processing limitations compared to standard plastic packages.

Selection Notes

Select this component when high input impedance and low input bias current are critical requirements. The wide common mode input range extending below the negative rail makes it suitable for single-supply applications. Ensure the SOIC-8 package dimensions align with your PCB layout constraints.

Part Context

This part belongs to the CA3140 series of integrated circuit operational amplifiers manufactured by Renesas Electronics Corporation (formerly Intersil/Harris). The series combines BiMOS technology to offer performance characteristics superior to standard bipolar op-amps in terms of input impedance while maintaining robust output drive capabilities.

Replacement Considerations

CA3140AEZ

FAQ

How can the bandwidth be reduced?

An external capacitor connected between Terminals 1 and 8 can reduce the open-loop -3dB bandwidth, though the slew rate will also be proportionally reduced.

What is the function of Terminal 8?

Terminal 8 serves as an access terminal for supplementary external capacitors for frequency roll-off and can be used to strobe the output stage into quiescence when tied to the negative supply.