NDS9943 Discrete Semiconductor Products

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The NDS9943 are four general-purpose analog switch arrays and are specifically designed for low ON-resistance, low power consumption and low leakage current. It is suitable for a wide range of applications, such as signal routing, multiplexing, and switching. The NDS9943 consists of 8 analog switches and is made on a monolithic fabrication process which utilizes advanced oxidation, mesa isolation and doping technology.

The NDS9943 has a high-impedance input, and if it is left floating, it will absorb unwanted interference. This feature is of great help when using the NDS9943 in high impedance applications. In addition, the NDS9943 has a fast turn-on and turn-off time which helps reduce glitches. The total chip ON-resistance is low and the ON-resistances of adjacent channels are matched when enabled. This helps to minimize errors during switching.

The NDS9943 can be used in a variety of applications in different media systems, such as power conditioning, signal routing, signal filtering or multiplexing. It can also be used as a switch matrix in radio frequency and microwave applications. The NDS9943 is ideal for switching modem signals, stereo signals, and telephone systems.

The working principle of the NDS9943 is based on the use of field-effect transistors (FETs). FETs can be used as a transducer or switch to regulate or control the flow of electricity. These are used as voltage or current-controlled resistors. FETs are divided into three classes, namely depletion-mode, enhancement-mode, and analog mode. The NDS9943 uses depletion-mode FETs which can help in switch control.

The NDS9943 integrates four FET arrays, each of which contains eight analog switches. The NDS9943 uses Darlington array configuration to reduce the ON-resistance. All the analog switches share common gate and source pins. The control signal is applied to the gate pin of each switch, which acts as a switch between the drain and source. When the control voltage is high, the switch is on and the current is allowed to flow. When the control voltage is low, the switch is turned off and no current flows.

The NDS9943 provides various features such as on/off control, multiplexing, and switching. The high-impedance inputs absorb unwanted interference. The fast turn-on and turn-off time helps minimize glitches. The device also supports single-control voltage operation, with separate off logic levels. The NDS9943 is cost-effective and easy to use. It can be used in a variety of applications in different media systems.

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