The DG408 Single 8-Channel, and DG409 Differential 4-Channel monolithic CMOS analog multiplexers are drop-in replacements for the popular DG508A and DG509A series devices. They each include an array of eight analog switches, a TTL/CMOS compatible digital decode circuit for channel selection, a voltage reference for logic thresholds and an ENABLE input for device selection when several multiplexers are present.

The DG408 and DG409 feature lower signal ON resistance (TRANS The analog switches are bilateral, equally matched for AC or bidirectional signals. The ON resistance variation with analog signals is quite low over a ±5V analog input range.

* ON Resistance (Max, 25°C) 100Ω * Low Power Consumption (PD) * Fast Switching Action


* Low Charge Injection * Upgrade from DG508A/DG509A * TTL, CMOS Compatible * Single or Split Supply Operation * Pb-Free Plus Anneal Available (RoHS Compliant)

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