THAT3xx ics equivalent, low-noise matched transistor array ics.
* 4 Matched NPN Transistors
º 300 typical hfe of 100 º 300A minimum hfe of 150 º 300B minimum hfe of 300
* 4 Matched PNP Transistors
º 320 typical hfe of 75
*.
* Low Noise Front Ends
* Microphone Preamplifiers
* Log/Antilog Amplifiers
* Current Sources
* Curre.
The THAT 300, 320 and 340 are large geometry, 4-transistor, monolithic NPN and/or PNP arrays. They exhibit both high speed and low noise, with excellent parameter matching between transistors of the same gender. Typical base-spreading resistance is .
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