ADG702LBRM-REEL

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• Interface

Analog Switches, Multiplexers, Demultiplexers

The ADG702LBRM-REEL is a high-speed, single-supply, low on-resistance CMOS analog switch. It is particularly useful in applications requiring low distortion, low noise and low power dissipation. This device has an on-resistance of 10Ω and a voltage range from –3.3V to +3.3V. Additionally, it has a very low charge injection of 100fC.

Application Fields

The ADG702LBRM-REEL can be used in many applications. Most notably, it can be used as a First-in, First-out (FIFO) device in analog-to-digital (A/D) conversion. It can also be used for frequency translation, pulse delay, and trigger generation. Additionally, this device can be used in video distribution, multiplexers switch and demultiplexer circuits.

Features & Benefits

• Low on-resistance of 10Ω
• Voltage range from –3.3V to +3.3V
• Low distortion, low noise and low power dissipation
• Low charge injection of 100fC

Working Principle

The ADG702LBRM-REEL is a single-supply, low-power, CMOS analog switch. Its operation is based on an ON/OFF switch action provided by two separate complementary transistors, one PMOS and one NMOS. This switch is controlled by a single TTL logic signal, which is generated externally.

When the logic signal is HIGH, the POLARITY of the input signal determines which transistor will be turned ON. If the voltage at the control signal port is a negative voltage, the PMOS transistor will be turned ON. In this scenario, the drain of the PMOS will be connected to the source of the NMOS and the output will be connected to the drain of the PMOS. On the other hand, if the control logic signal is a positive voltage, the NMOS will be turned ON and the output voltage will be connected to the source of the NMOS.

When the logic signal is LOW, both transistors will be OFF and the switch will disconnect the input signal from the output. Additionally, the off state is completely nonconductive and there is no leakage current flow. This feature provides excellent isolation between the input and output signals and makes the ADG702LBRM-REEL well-suited for use in multiplexers, demultiplexers, and video distribution applications.

Conclusion

The ADG702LBRM-REEL is a high-speed, single-supply, low on-resistance CMOS analog switch. It is ideal for applications requiring low distortion, low noise and low power dissipation. Its main applications are FIFO devices in signal conversion, frequency translation, pulse delay, trigger generation, and video distribution. Additionally, this device can be used for multiplexers, switch and demultiplexer circuits. Its operation is based on two separate complementary transistors, one PMOS and one NMOS, that are controlled by an external TTL logic signal.

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