Thus, this is all about an overview of the CA3140 BiMOS op-amp datasheet, and this IC includes MOSFET inputs & Bipolar output. Interface in 5V TTL Systems & Low Voltage Supply Systems.Multivibrators & Timers with Long Duration.This Op-amp is apt for designing some basic circuits for beginners, engineers, etc.This IC is used in general purpose applications like buffers, amplifiers, comparators, adders, voltage followers, etc.CA3140 op- amp is available in a single package and is widely used by students, engineers in different applications.The applications of CA3140 IC include the following. In addition, the requirement of the input current in most of the ICs is also high so that these ICs cannot be utilized in different circuits depending on Infrared Sensors & Photodiodes. Some of the normal operational amplifiers will not provide a zero o/p within the off condition that will influence the performance of the other circuits. The main characteristics of this IC are input current usage is less & the zero o/p within the off condition. The procedure is reversible & offset voltage moves the opposite polarity to reverse the offset.ĬA 3140 op-amp is an excellent IC used in signal detection circuits. These changes can be accelerated by applying voltage & temperature. MOSFET devices exhibit small changes within characteristics due to the huge differential input voltage application that are maintained above long phases at elevated temperatures. This resistance stops the very large i/p signal transient possibility from a signal force using the input safety network & directly driving the internal constant current source which could affect positive feedback through the output terminal. The inputs of an amplifier can be determined under the potential of terminal 4, however, a current limiting resistor is suggested to restrict the highest input terminal current to less than 1mA to prevent damage to the input protection circuitry.Īdditionally, some resistance for limiting the current must be provided in between the inverting input & the output once the IC is used as a voltage follower with unity gain. So, a 20% decrease within BW through this method will also lessen the slew rate by 20%. The slew rate can also be reduced proportionally through this extra capacitor. The open-loop -3dB BW can be reduced when an exterior capacitor is connected in between two Terminals like 1 & 8. A current regulator with the PMOS threshold voltage keeps a stable operating current & thus reliable performance will be down to these lower voltages. This IC can be operated through less voltage like 4V. Thus, a considerable section of the potentiometer revolution is not completely used. The input offset voltage of this IC can be canceled through a 10K pot by connecting it in between the two terminals like 1 & 5 where its wiper can be returned to the ground.
The design parameters of CA3140 IC are shown below. This circuit can also be used for different purposes like an electric field detector to detect electric current within electric wires through measuring equipment like millimeters and iron detectors. The following circuit is very responsive, so used to detect electricity from a distance of 2 or 2 meters. The circuit diagram of static electricity detector with CA3140 IC. Common Mode Rejection Ratio/ CMRR is 70 dBĮquivalent CA3140 op-amp is UA741 whereas alternative CA3140 op-amps are AD620, IC6283, LM4871, JRC45558, LF351N, TL081 & MC33171N Detection of Static Electricity using CA3140 IC.Gain Bandwidth Product (GBP) is 4.5 MHz.Input impedance (Zin) is extremely high like 1.5TΩ.A subcategory is an operational amplifier.Input current is very less like 10pA ☑5V.The features and specifications of the CA3140 BiMOS operational amplifier include the following. Pin8 (Strobe): This pin is mainly used for compensation of phase or to deactivate the output phase.