DG441BDJ-E3

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The DG441BDJ-E3 is an interface product belonging to the field of Analog Switches, Multiplexers and Demultiplexers. It is manufactured by Texas Instruments, and is a quad, single-pole/double-throw (SPDT) CMOS analog switch with low On resistance, low signal-off leakage, and guaranteed break-before-make switching. This product is used in applications such as signal routing, loudspeaker switching, sample-and-hold circuits, precision data distribution, and gain-change circuits.

The DG441BDJ-E3 has four independently controlled switches, making it suitable for applications that require simultaneous connection or disconnection of two single-end signal paths. The device features a maximum On resistance (RON) of 18 Ohms, with a maximum SO Leakage (LSO) of 10uA per channel. It supports supply voltages of±5V to ±15V, and a maximum switching speed of 4ns. Available in the industry-standard 0.3-inch SOP package, it also supports various logic control voltage levels.

The working principle of the DG441BDJ-E3 is based on CMOS technology, meaning that it utilizes a combination of PMOS and NMOS transistors as its core switching element. When the switch is HIGH, current flows freely between the two isolated signal paths, allowing the connection of one single-ended signal. When the switch is switched LOW, the PMOS and NMOS transistors are both in the OFF state, blocking any current flow between the two paths. In this way, two isolated signal paths can be connected or disconnected simultaneously.

The DG441BDJ-E3 is a reliable and cost-effective analog switch for applications where precise control, low on-resistance and low signal-off leakage are desired. It is ideal for use in signal routing, loudspeaker switching, sample-and-hold circuits, precision data distribution, and gain-change circuits. The device is also suitable for manual, as well as remote control applications, as it supports various logic control voltage levels.

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