DG442AK/883B

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The DG442AK/883B is a quad analog switch designed for use in systems based on microprocessors. It is a monolithic integrated circuit consisting of four CMOS switched-capacitor circuit elements with the advantages of low power dissipation and low cost. The DG442AK/883B is part of the DG432A/883A family of devices, which includes an array of high-speed multiplexers, demultiplexers, and voltage converters.

The DG442AK/883B can be used to connect analog signals between four single-ended or two differential sources (both sources have a common-mode voltage). The inputs are driven by signal sources with any amplitude from -15 volts to +15 volts. The signal sources need not be referenced to the same potential. The lower supply voltage (VDD) will be +3V and the upper supply voltage (VSS) will be -3V.

The outputs of the DG442AK/883B can be connected to either single-ended or differential-input receivers, with any operating voltage between +15V and -15V. This device can drive up to four matched or mismatched loads. It also operates over a wide temperature range of - 40°C to +85°C.

The DG442AK/883B is designed to work with two logic control inputs of -50 mV to +50 mV. Each switch can be independently programmed by the selection of one of four control inputs. It can also be programmed via external pull-up resistors. The four control inputs are referred to as S1, S2, S3 and S4 and the four switches are referred to as S1, S2, S3 and S4.

The two logic inputs (S1 and S2) are hardwired to the Digital-to-Analog Converter (DAC) port of the device. The other two logic inputs (S3 and S4) are connected to the Analog-to-Digital Converter (ADC) port. A user can program any of the four switches to connect any one of the four signal sources to any one of the four signal receivers.

The control logic inputs source current of up to 10mA and the switch outputs sink current up to -12mA. The operating temperature range is -40°C to +85°C. The circuit includes protection diodes which protect the inputs from electrically-fast transient spikes, as well as ESD protection for all switch pins.

In the DG442AK/883B, some combination of four signals from the signal sources can be easily transmitted to any four of the signal receivers. This is because the four logic inputs control each switch and the switch outputs either stay at a floating state or connect to the desired receiver. The DG442AK/883B is a very useful device for analog signal multiplexing in applications requiring a small number of switch elements.

The switching speed of the DG442AK/883B is up to 10 kHz with a switch settling time of up to 10 ns depending on the capacitance of the loads. It can also be used in many applications, such as automatic test equipment, programmable logic controllers, and instrumentation systems.

This device is suitable for interconnection of the audio, video, and other analog signals up to a frequency range of 1MHz and above. It is also an ideal device for multiplexing analog signals in process control systems and data acquisition systems. The very high speed and low propagation delays make the DG442AK/883B an attractive device for timing, control and switching applications.

In conclusion, the DG442AK/883B is a four channel analog switch with high-precision circuitry and a wide range of applications. It is robust, reliable and low-cost.

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