The CA3018 and CA3018A consist of four general purpose silicon NPN transistors on a common monolithic substrate.

Two of the four transistors are connected in the Darlington configuration. The substrate is connected to a separate terminal for maximum flexibility.

Features

• Matched Monolithic General Purpose Transistors

• hFE Matched . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±10

• VBE Matched

- CA3018A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±2mV

- CA3018 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5mV

• Operation From DC to 120MHz

• Wide Operating Current Range

• CA3018A Performance Characteristics Controlled from 10µA to 10mA

• Low Noise Figure . . . . . . . . . . . . . . . . 3.2dB (Typ) at 1kHz

• Full Military Temperature Range . . . . . . . -55°C to 125°C

Applications

• Two Isolated Transistors and a Darlington 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