General Purpose NPN Transistor Arrays

Not Recommended for New Designs.
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Typical Diagram

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Key Features

    • Two Matched Transistors
      • VBE Match ±5mV
      • IIO Match 2µA (Max)
    • Low Noise Figure 3.2dB (Typ) at 1kHz
    • 5 General Purpose Monolithic Transistors
    • Operation From DC to 120MHz
    • Wide Operating Current Range
    • Full Military Temperature Range


The CA3046 consists of five general purpose silicon NPN transistors on a common monolithic substrate. Two of the transistors are internally connected to form a differentially connected pair.

The transistors of the CA3046 are well suited to a wide variety of applications in low power systems in the DC through VHF range. They may be used as discrete transistors in conventional circuits. However, in addition, they provide the very significant inherent integrated circuit advantages of close electrical and thermal matching.


    • Three Isolated Transistors and One Differentially Connected Transistor Pair for Low Power Applications at Frequencies from DC Through the VHF Range
    • Custom Designed Differential Amplifiers
    • Temperature Compensated Amplifiers
    • See Application Note, AN5296 "Application of the CA3018 Integrated-Circuit Transistor Array" for Suggested Applications


Design Tip

Are the Schottky clamp diodes required on the outputs when not driving MOSFETs?

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Is there somewhere I can find out what simulations and models (e.g. Spice, PSpice, IBIS) are available on your website?

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