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Datasheet Intersil CA3420


0.5MHz, Low Supply Voltage, Low Input Current BiMOS Operational Amplifiers


  • Download » Datasheet, PDF, 332 Kb, Revision: 2017-09-19
    CA3420 Datasheet
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    CA3420 FN1320
    Rev 9.00
    Oct 4, 2005 0.5MHz, Low Supply Voltage, Low Input Current BiMOS Operational Amplifier
    The CA3420 is an integrated circuit operational amplifier that
    combines PMOS transistors and bipolar transistors on a
    single monolithic chip. The CA3420 BiMOS operational
    amplifier features gate protected PMOS transistors in the
    input circuit to provide very high input impedance, very low
    input currents (less than 1pA). The internal bootstrapping
    network features a unique guardbanding technique for
    reducing the doubling of leakage current for every 10В°C
    increase in temperature. The CA3420 operates at total
    supply voltages from 2V to 20V either single or dual supply.
    This operational amplifier is internally phase compensated to
    achieve stable operation in the unity gain follower
    configuration. Additionally, it has access terminals for a
    supplementary external capacitor if additional frequency rolloff is desired. Terminals are also provided for use in
    applications requiring input offset voltage nulling. The use of
    PMOS in the input stage results in common mode input
    voltage capability down to 0.45V below the negative supply
    terminal, an important attribute for single supply application.
    The output stage uses a feedback OTA type amplifier that ...



Package8 Ld PDIP8 Ld PDIP


AVOL100 dB100 dB
Bandwidth0.5 MHz0.5 MHz
Number of Channels11
Common Mode Rejection Ratio65 dB65 dB
Description0.5MHz, Low Supply Voltage, Low Input Current BiMOS Operational Amplifiers0.5MHz, Low Supply Voltage, Low Input Current BiMOS Operational Amplifiers
Gain AV (min)11
IBIAS (max)5 pA5 pA
IOUT1.5 mA1.5 mA
IS (per amp)0.45 mA0.45 mA
Noise VN38 nV/√Hz38 nV/√Hz
Number of Channels11
Operating Temperature Range-55 to 125-55 to 125
PSRR80 dB80 dB
Qualification LevelStandardStandard
Rail-to-Rail InputNoNo
Rail-to-Rail OutputYesYes
Slew Rate0.5 V/μs0.5 V/μs
Thermal ShutdownNoNo
VOS (max)5 mV5 mV
VOUT19.75 V19.75 V
VS (max)20 V20 V
VS (min)2 V2 V

Eco Plan


Moldel Line

Series: CA3420 (2)

Manufacturer's Classification

  • Amplifiers & Buffers > All Amplifiers > Amplifiers

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