MD2369 Allicdata Electronics
Allicdata Part #:

MD2369-ND

Manufacturer Part#:

MD2369

Price: $ 0.00
Product Category:

Discrete Semiconductor Products

Manufacturer: Central Semiconductor Corp
Short Description: TRANS 2NPN 500MA 15V TO78-6
More Detail: Bipolar (BJT) Transistor Array 2 NPN (Dual) 15V 50...
DataSheet: MD2369 datasheetMD2369 Datasheet/PDF
Quantity: 1000
1 +: 0.00000
Stock 1000Can Ship Immediately
$ 0
Specifications
Series: --
Packaging: Bulk 
Part Status: Obsolete
Transistor Type: 2 NPN (Dual)
Current - Collector (Ic) (Max): 500mA
Voltage - Collector Emitter Breakdown (Max): 15V
Vce Saturation (Max) @ Ib, Ic: --
Current - Collector Cutoff (Max): --
DC Current Gain (hFE) (Min) @ Ic, Vce: 40 @ 10mA, 1V
Power - Max: --
Frequency - Transition: 500MHz
Operating Temperature: --
Mounting Type: Through Hole
Package / Case: TO-78-6 Metal Can
Supplier Device Package: TO-78-6
Description

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Introduction

MD2369 is a linear array integrated circuit of buffers, featuring four identical amplifier stages that are each composed of an NPN/PNP transistor pair. It has a wide range of application fields and an interesting working principle. This article will provide a detailed description of both.

Application Field

The MD2369’s application field covers a wide range of operations. It is most commonly used for driving the TTL inputs of amplifier circuits and for extending the operating temperature range and driving power of small signal amplifiers. Due to its high input impedance and low output impedance, it can be used as a voltage buffer or voltage amplifier. Its large output current capability makes it also suitable as current voltage translator, while its low power consumption makes it ideal for portable or battery powered systems. Moreover, it can be used to achieve low-noise gain transfers, drive multiple low-saturation voltage outputs and it is suitable for use in multiple negative impedance applications.

Working Principle

The MD2369 is composed of four identical amplifier stages. These stages each feature an NPN/PNP transistor pair. The NPN transistor is connected to the ground, the PNP transistor to the supply voltage, and the two are cross-connected in a way that the collector of the NPN transistor is connected to the base of the PNP transistor, and the collector of the PNP transistor to the base of the NPN transistor. This cross-connection allows the input signal applied to the base of the PNP transistor to be inverted and amplified at the PNP collector output. At the same time, the signal applied to the NPN base is invisible to the PNP collector, and therefore is not amplified. The outputs of all four stages are then combined together and externally available.

Conclusion

The MD2369 is an integrated circuit with a wide application range and an interesting working principle. Its application fields range from driving the TTL inputs of amplifier circuits to extending the operating temperature range or driving power of small signal amplifiers. The circuit is composed of four identical amplifier stages that feature an NPN/PNP transistor pair, connected in a way that allows the signal applied to the PNP base to be inverted and amplified at the PNP collector output.

The specific data is subject to PDF, and the above content is for reference

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