DG212CJ – ANALOG DEVICES

Overview

The Analog Devices DG212CJ is a quad, single-pole, single-throw (SPST) normally open (NO) analog switch designed for robust signal routing in a variety of electronic systems. Its primary function is to provide low-impedance, bidirectional switching of analog signals, with a critical operational characteristic being its relatively high on-state resistance of 175 Ohms. This characteristic necessitates careful consideration in designs where signal integrity is paramount, as it can introduce attenuation and affect the bandwidth of the switched signal, particularly at higher frequencies. Engineers must balance the need for switching flexibility with the potential impact of this resistance on overall system performance when selecting the DG212CJ for applications requiring precise analog signal management.

Key Features

• Quad SPST-NO analog switch configuration
• 175 Ohm maximum on-state resistance
• ±4.5V to ±18V dual supply voltage range
• Switching times: 1µs (on), 500ns (off)
• Low leakage current: 5nA (max)
• 16-DIP (0.300″, 7.62mm) through-hole package

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

• Low-frequency signal multiplexing in instrumentation
• Analog signal path selection in audio processing
• Switching of sensor inputs in data acquisition systems
• Control signal routing in industrial automation