DG442BDY-E3

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The DG442BDY-E3 is an four channel single control analog switch IC with low charge injection for use as a multiplexer, demultiplexer, and sample and hold switch. The device features a low, 20-nC charge injection specification, ensuring utmost accuracy and dependability when switching sensitive analog, digital, and power signals. With a wide supply voltage range of +2.7V to +20V and a single-control logic capability, the DG442BDY-E3 is incredibly versatile and performs well in a variety of applications.

The DG442BDY-E3 Analog Switch offers excellent linearity over a wide input range and can handle output current levels up to 14mA. The device provides 0-100 dB of isolation with a maximum control voltage of 3 V and a control voltage sensitivity of 150mV. The DG442BDY-E3 also offers a high switching speed of 50ns and a low quiescent current of 10mA. It can also withstand high transient voltage spikes of up to 30V, making it an ideal choice for applications susceptible to potential damage.

The DG442BDY-E3 Analog Switch is used in a wide array of applicable fields. It can be used in temperature, voltage, and current sensor switching and can also be used in switched-mode power supplies, power amplifiers, data converters, and sensors. Additionally, the DG442BDY-E3 has applications in sound and audio systems, motor control systems, medical instrumentation, and optical networking.

Working Principle of the DG442BDY-E3

The DG442BDY-E3 is an analog switch with an integrated gate driver. It is composed of four individually controllable, low-power analog switches that are driven by an integrated gate driver. The gate driver circuit is designed to provide an amplified output to the gate of the MOSFET switch. The control voltage applied to the gate driver is determined by the logic input. When the logic input is a logic “1”, the voltage at the gate of the MOSFET is “high” and the switch is “turned on”. Conversely, when the logic input is a logic “0”, the voltage at the gate of the MOSFET is “low” and the switch is “turned off”. The device offers low charge injection and excellent linearity over a wide input range, making it suitable for data converters, power amplifiers, and other sensitive applications that require low distortion levels.

The maximum logic current required to drive the DG442BDY-E3 is 2mA, making the device well-suited for powering in low-power, low-voltage circuits. Additionally, the device offers an impedance switching function of 0-100dB and can drive up to 14mA with a maximum output voltage of 20V. The device can withstand transient voltage spikes of up to 30V and has a low quiescent current of 10mA.

The DG442BDY-E3 has a wide operating temperature range of -25°C to +85°C and can operate at an extended voltage range of +2.7V to +20V. The device is capable of providing a high switching speed of 50ns and a low charge injection of 20nC, making it an ideal choice for applications in instrumentation, sensors, audio systems, and more. Additionally, the DG242BDY-E3 can be used as a multiplexer, demultiplexer, and sample and hold switch.

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