CA3140 BiMOS Operational Amplifier [Original]

CA3140 BiMOS Operational Amplifier IC – High Performance & Versatile

The CA3140 BiMOS Operational Amplifier is a versatile integrated circuit. It combines high voltage PMOS and bipolar transistors on a single monolithic chip. Its gate-protected MOSFET input stage ensures very high input impedance and exceptionally low input current, making it ideal for sensitive applications. It operates across a wide supply voltage range of 4V to 36V, supporting both single and dual supply configurations. This op-amp is internally phase compensated for stable unity gain follower operation. Its PMOS input provides common mode input voltage capability down to 0.5V below the negative supply, crucial for single supply designs. The robust bipolar output stage includes built-in short circuit protection. It serves as a direct, high-performance replacement for the industry-standard 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 for precision applications
• 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

Package Includes:

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