Maxim DG409DY+

SP4T4:12100 Ом5 В ~ 30 В

Overview

The DG408 Single 8-Channel, and DG409DY 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 DG409DY feature lower signal ON resistance (<100Ω) and faster switch transition time (tTRANS <250ns) compared to the DG508A or DG509A. Charge injection has been reduced, simplifying sample and hold applications. The improvements in the DG408 series are made possible by using a high-voltage silicon-gate process. An epitaxial layer prevents the latch-up associated with older CMOS technologies. Power supplies may be single-ended from +5V to +34V, or split from ±5V to ±20V. 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.

Features

Applications

• Precision data acquisition
• Battery-powered systems
• Sample-and-hold systems
• Communication systems
• Data Acquisition Systems
• Relay Replacement
• Battery Powered Systems
• Existing multiplexer applications (both fault-protected and nonfault-protected)
• New designs requiring multiplexer functions
• Cellular phones