The recommended power-up sequence is to apply VDD first, followed by VSS, and then the logic inputs. This ensures proper device operation and prevents latch-up.
To ensure correct switching, the digital control inputs (S0-S3) should be driven with a valid logic level (VIL or VIH) before applying the analog signal. Additionally, the analog signal should be within the specified voltage range (VSS to VDD) to prevent signal distortion.
The maximum allowable voltage on the analog signal pins when the device is powered down is 5.5V. Exceeding this voltage may cause damage to the device.
Yes, the DG408DJ can be used as either a multiplexer or demultiplexer. As a multiplexer, it selects one of eight analog input signals and routes it to a single output. As a demultiplexer, it takes a single analog input signal and routes it to one of eight output channels.
The typical on-resistance (RDS(ON)) of the DG408DJ switches is around 40 ohms. This value can vary depending on the operating conditions and the specific device.
DG408DJ datasheet
by Maxim Integrated Products
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