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CA3140 BiMOS OP-AMP & Its Working

Mrinali Sharma by Mrinali Sharma
August 24, 2022
in Knowledge Base
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  • The CA3140 is an integrated circuit operational amplifier that combines the advantages of high voltage PMOS transistors with high voltage bipolar transistors on a single monolithic chip.

Features of CA3140 BiMOS OP-AMP

  • It offers high current drive per unit area and high gain.
  • Generally better noise performance and better high-frequency characteristics.
  • It has better analog capability compared to others.
  • Improved I/O speed.
  • It offers high power dissipation.
  • lower input impedance (high drive current).
  • It offers high noise margins.
  • It has low static power dissipation compared to other technologies.
  • It offers a high packing density.
  • It offers high yield along with large integrated complex functions.
  • It has a low manufacturing cost per device.
  • Scalable threshold voltage.

Working of CA3140 BiMOS OP-AMP

  • The CA3140A and CA3140 BiMOS operational amplifiers feature gate-protected MOSFET (PMOS) transistors in the input circuit to provide very high input impedance, and very low input current, and High-Speed performance.
  • Terminals are also provided for use in applications requiring input offset voltage nulling.
  • The use of PMOS field effect transistors in the input stage results in common mode input voltage capability down to 0. 5V below the negative supply terminal, an important attribute for single supply applications.
  • The output stage uses bipolar transistors and includes built-in protection against damage from load terminal short-circuiting to either supply rail or ground.
CA3140 BiMOS OP-AMP

Applications of CA3140 BiMOS OP-AMP

  • Employed in the sample and hold amplifiers.
  • Incorporated in photocurrent instrumentation and peak detectors.
  • Used in long-duration timers/multivibrators (µseconds-Minutes-Hours).
  • Employed in 5V TTL Systems and other low supply voltage systems.
  • Used in comparators and active filters.
  • Used in tone controls and power supplies.
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Mrinali Sharma

Mrinali Sharma

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