DG412LDQ-E3

The DG412LDQ-E3 is a quad SPDT analog switch designed for quick, efficient switching. It is a CMOS logic-compatible, low power, quad SPST (single-pole, single-throw) non-inverting switch capable of single-pole and 2-pole switching via two control signals. The quad configuration of the device allows for simultaneous switching of all four switches, enabling applications requiring highly efficient, precision switching.

The switch is best suited for low-level analog, logic level, and RF signals. It is suitable for applications needing simultaneous switching of multiple signals in response to one, two, or more control signals. The switch was developed for use in military and communications applications needing versatile, low power switching.

Application Field

The DG412LDQ-E3 analog switch can be used in a variety of applications such as:

• Logic level signals.
• Serial data switching.
• Process control.
• Test and measurement.
• Critical timing circuits.
• Voltage references and level detection.
• Automatic test equipment.
• Sequential control circuits.
• DC switching.

Working Principle

The DG412LDQ-E3 is an analog switch that is electrically controlled by two logic inputs. The switch performs single-pole or 2-pole switching when either or both of the control signals are asserted for switch operation. When the control inputs are not asserted, the switch is in the non-switched state. When either of the control inputs is asserted, the switch is in the ON state. The switches are of the non-inverting type so the output voltage is the same as the input voltage when the switches are in the ON state.

When the control signal is not asserted, the switch is in the OFF state and the output voltage is either high-impedance or zero-voltage. The switch is designed to be used with standard TTL/CMOS logic levels and works with a wide range of signal levels, with a maximum switching current of 1.5mA and a typical on capacitance of 20nF. The switch has a typical break before make time of 5nsec.

The DG412LDQ-E3 is an advanced analog multiplexer/demultiplexer that is suitable for a wide range of applications. Its quad switch configuration provides for quick and efficient single-pole or 2-pole switching for a variety of applications. Its low power operation makes it an ideal choice for use in military and communication devices.