CA3140T BiMOS Operational Amplifier with MOSFET Input/Bipolar Output CAN8 spot stock

Product Descriptions

The CA3140A and CA3140 are integrated circuit operationalamplifiers that combine the advantages of high voltage PMOStransistors with high voltage bipolar transistors on a singlemonolithic chip .

The CA3140A and CA3140 BiMOS operational amplifiersfeature gate protected MOSFET (PMOS)transistors in theinput circuit to provide very high input impedance,very lowinput current, and high speed performance . The CA3140Aand CA3140 operate at supply voltage from 4V to 36V (eithersingle or dual supply). These operational amplifiers areinternally phase compensated to achieve stable operation inunity gain follower operation, and additionally, have accessterminal for a supplementary external capacitor if additionalfrequency roll-off is desired . Terminals are also provided foruse in applications requiring input offset voltage nulling . Theuse of PMOS field effect transistors in the input stage resultsin common mode input voltage capability down to 0.5V belowthe negative supply terminal, an important attribute for singlesupply applications . The output stage uses bipolar transistorsand includes built-in protection against damage from loadterminal short circuiting to either supply rail or to ground .

Product Features

MOSFET Input Stage

-  Very High Input Impedance (Z IN) -1.5TΩ (Typ)

-  Very Low Input Current (Il ) -10pA (Typ) at ±15V

-  Wide Common Mode Input Voltage Range (V lCR)-Can be Swung 0 .5V Below Negative Supply Voltage Rail

-  Output Swing Complements Input Common Mode Range

•  Directly Replaces Industry Type 741 in Most Applications

Product Applications

•  Ground-Referenced Single Supply Amplifiers in Automo bile and Portable Instrumentation

•  Sample and Hold Amplifiers

•  Long Duration Timers/Multivibrators (µseconds-Minutes-Hours)

•  Photocurrent Instrumentation

•  Peak Detectors

•  Active Filters

•  Comparators

•  Interface in 5V TTL Systems and Other Low Supply Voltage Systems

•  All Standard Operational Amplifier Applications

•  Function Generators

•  Tone Controls

•  Power Supplies

•  Portable Instruments

•  Intrusion Alarm Systems

Product Photos

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