DG411CJ+

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The DG411CJ+ is a high-performance monolithic CMOS analog switch device. It is an ultra-low power, fast switching, quad SPST (single-pole/single-throw) analog switch designed to operate from a single +2.7 V to +5.5 V supply. This device is analogous to two analog two-input NAND gates as well as a two-input exclusive-OR (XOR) logic gate.

The DG411CJ+ is a general purpose switch for switching analog signals. It provides high input impedance and low output impedance that is ideal for use in amplifier, multiplexer, and sample-and-hold circuits. The on resistance (RON) of the switch is specified across the -40°C to +85°C temperature range. At +25°C, the on resistance is typically 55 Ω Max.

The switches are powered by a single +2.7 V to +5.5 V power supply. The power supply pins of the chip have low power consumption (12 mA Max) so they are very suitable for low power and battery powered applications. With a minimal switching time of 25 ns (8 MHz), this device is Ideal for data acquisition systems and multiplexer applications.

The DG411CJ+ includes a digital control port which accepts binary logic inputs. The logic inputs can be used for multiplexer/demultiplexer applications. For example, the D input can be connected to the selection line of a multiplexer/demultiplexer, and the output of the multiplexer can be connected to the E input. The signals from the E input are then routed to the B output, allowing the corresponding signal from the A input to the B output.

The DG411CJ+ is fully protected against ESD (electrostatic discharge), and is offered in the 8-pin DIP and 8-lead SOIC packages. The device is suitable for high reliability and low noise applications. The device is also RoHS compliant.

Some of the applications of the DG411CJ+ include signal switching and sample-and-hold operations in various types of data acquisition systems, multiplexer/demultiplexer applications, amplifier/filter networks, and interface applications such as bus switches, keyboard switches, and other switch/toggle functions.

The working principle behind the DG411CJ+ is relatively simple. The chip contains four analog switches which are switched via two logic control inputs. The logic inputs are connected to the selection or enable lines of the multiplexer/demultiplexer circuits. The signals received from the multiplexer circuits are then connected to the E input, which allows the signals to pass through the switch and onto the B output. When the logic inputs are asserting low, the transistor switches are turned off and the outputs are at high impedance.

The output is then routed to the A or B output, depending on the selection or enable signals. In this way, the DG411CJ+ can be used to switch and route analog signals between two different systems. The device also offers a very low switching time of 25 ns, making it suitable for a wide range of applications.

Overall, the DG411CJ+ is a highly versatile device capable of performing a variety of tasks in a wide range of analog applications. The device is capable of both analog-to-analog switching and multiplexer/demultiplexer operations, enabling users to switch between two analog systems with high speed and low power consumption. Therefore, the DG411CJ+ is a great choice for applications where fast switching, high input impedance, low power consumption, and low output impedance are desired.

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