DG409LDQ-T1-E3 Integrated Circuits (ICs)

DG409LDQ-T1-E3 Application Field and Working Principle

DG409LDQ-T1-E3 is a dual low-on resistance CMOS multiplexer/demultiplexer. It is a type of analog switch/multiplexer/demultiplexer module. It is used to control analog signals from two different sources to a single line or to two separate lines using digital control signals.

Application Field

The DG409LDQ-T1-E3 is used in systems where two or more CMOS compatible input signals such as microphone inputs for mobile phone speakers, or multiplexed telecommunication signals, must be routed to a single output device or two separate output devices. It is also used in applications such as analog signal measurement, automatic temperature control, remote control circuits, and multiple data bus switching.

Working Principle

The module consists of two low-on resistance analog switches, multiplexers and demultiplexers. It has three independent channels, A&B, B&C and A&C, which can be independently controlled with separate logic control signals, enabling the multiplexing and demultiplexing of analog signals. The module also has four control logic inputs, which are CMOS compatible, and two control voltage inputs, which can control multiplexing functions up to 15V.

The module supports analog input signals with a maximum amplitude of 5V, and a frequency of up to 1MHz. When the control inputs are selected, the A&B, B&C or A&C channels will be selected, and the corresponding analog signal will be sent to the specified output. When none of the control inputs are selected, the module will operate in a multiplexer or demultiplexer mode, as selected by the control voltage input.

Conclusion

The DG409LDQ-T1-E3 is a type of analog switch/multiplexer/demultiplexer module that is used to control analog signals from two different sources to a single line or to two separate lines using digital control signals. The module supports input signals up to 5V, and due to its low-on resistance characteristics, it can be used in applications in which precision is important. To summarize, the module is suitable for systems where two or more CMOS compatible input signals need to be routed to a single output device or two separate output devices.