CA3140 BiMOS Operational Amplifier [Original]

CA3140 BiMOS Operational Amplifier IC

The CA3140 BiMOS Operational Amplifier is an integrated circuit. It combines high voltage PMOS and bipolar transistors on a single monolithic chip. Its gate-protected MOSFET input stage provides very high input impedance and low input current. Operation is supported across a supply voltage range of 4V to 36V, in both single and dual supply configurations. The op-amp is internally phase compensated for stable unity gain follower operation. The PMOS input offers common mode input voltage capability down to 0.5V below the negative supply. A robust bipolar output stage includes built-in short circuit protection. It functions as a direct replacement for the 741 op-amp in most circuits.

Specifications:

• Input Stage: MOSFET (PMOS)
• Technology: BiMOS (PMOS/Bipolar)
• Supply Voltage Range: 4V to 36V (Single or Dual)
• Input Impedance: Very High
• Input Current: Very Low
• Common Mode Input Voltage Range: Down to 0.5V below negative supply
• Output Stage: Bipolar with Short Circuit Protection
• Compensation: Internally Phase Compensated
• Replacement For: Industry Type 741

Key features and benefits:

• Advanced BiMOS technology combining PMOS and bipolar transistors
• Gate-protected MOSFET input stage for very high input impedance
• Extremely low input current
• Wide common mode input voltage range, extending 0.5V below negative supply
• Operates on a broad supply voltage from 4V to 36V (single or dual)
• Internally phase compensated for stable unity gain follower operation
• Directly replaces industry-standard 741 op-amps in most applications
• Bipolar output stage with built-in short circuit protection

Applications:

• High-impedance sensor interfaces and signal conditioning
• Active filters and precision amplifiers
• Voltage followers and buffers in single-supply systems
• General-purpose operational amplifier circuits
• Audio preamplifiers and low-current measurement
• Upgrades or replacements for 741-based designs

Frequently Asked Questions:

Q: Can the CA3140 replace a 741 op-amp?
A: Yes, the CA3140 is a direct, high-performance replacement for the industry-standard 741 op-amp in most circuits.

Q: What is the operating voltage range for the CA3140?
A: The CA3140 operates across a supply voltage range of 4V to 36V, supporting both single and dual supply configurations.

Q: Does the CA3140 require external compensation?
A: No, the CA3140 is internally phase compensated for stable unity gain follower operation.

Q: What is the input impedance of the CA3140?
A: The CA3140 features a gate-protected MOSFET input stage, providing very high input impedance.

Q: Is the output stage protected against short circuits?
A: Yes, the robust bipolar output stage includes built-in short circuit protection.

Package Includes:

*Image shown is a representation only.

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