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Transistor Arrays

When it comes to matched transistor arrays, you're not likely to find any better than THAT Corporation's 300 series. These are large-geometry, 4-transistor, monolithic NPN and/or PNP arrays exhibiting both high speed and low noise, with excellent parameter matching between transistors of the same gender. Their low base-spreading resistances and voltage noise under 1nV/√Hz make the 300 series ideal for low-noise amplifier input stages, among other applications.

They are fabricated in a dielectrically isolated (DI), complementary bipolar process, where each transistor is electrically insulated from the others by a layer of insulating oxide (and not the reverse-biased PN junctions used in conventional arrays). Consequently, the THAT300 series exhibit inter-device crosstalk and DC isolation similar to that expected from discrete transistors - perfect for audio applications!

The THAT300s are available in standard gain (typ 100) and also higher gain versions of 150+ and 300+.

Part Number ManufacturerVceIchFEenGBΔhfePackageCommentsData Sheet
THAT300AS14-U THAT40V0.05A1000.8nV350MHz4%SOIC-14 THAT300AS14-U datasheet
THAT300BS14-U THAT40V0.05A1000.8nV350MHz4%SOIC-14 THAT300BS14-U datasheet
THAT300P14-U THAT40V0.05A1000.8nV350MHz4%DIP-14 THAT300P14-U datasheet
THAT300S14-U THAT40V0.05A1000.8nV350MHz4%SOIC-14 THAT300S14-U datasheet
THAT320P14-U THAT-36V-0.03A750.75nV325MHz5%DIP-14 THAT320P14-U datasheet
THAT320S14-U THAT-36V-0.03A750.75nV325MHz5%SOIC-14 THAT320S14-U datasheet
THAT340P14-U THAT36V0.03A750.8nV325MHz5%DIP-14 THAT340P14-U datasheet
THAT340S14-U THAT36V0.03A750.8nV325MHz5%SOIC-14 THAT340S14-U datasheet