Vishay Siliconix - High-Precision 8-Channel and Dual 4-Channel CMOS Analog Multiplexers

The 8-channel DG508B and dual 4-channel DG509B CMOS analog multiplexers provide an extended maximum voltage rating to 44 V, with rail-to-rail analog capability, and can be operated in either a dual or single supply configuration.



The devices are fabricated on an enhanced SG-II CMOS process with channel off-leakage typically less than 3 pA in a wide analog signal range. The source-off parasitic capacitance is minimized to 3 pF and charge injection is less than 2 pC. The result is precise, low-glitch switching performance.



The devices' ultra-low power consumption, typically 10 μA at 25 °C with a guaranteed maximum of 600 μA over temperature, is greater than 60 % lower than the next best devices on the market, making the DG508B and DG509B well suited for portable, battery-operated applications.



The enhanced SG-II CMOS process also allows the new devices to achieve a –3dB bandwidth greater than 200 MHz with crosstalk and off-Isolation of - 40 dB at 100 MHz, making the DG508B and DG509B a versatile fit for a wide range of analog signal applications, including video.



The on-channel of the DG508B and DG509B conducts current equally well in both directions, while each channel blocks voltages up to the power supply rails in the off state. The multiplexers feature an enable function to reset all switches to off for stacking of several devices. Features also include TTL-compatible logic and break-before-make switching action to protect against momentary crosstalk between adjacent channels.



The DG508B and DG509B are both available in 16-pin SOIC and TSSOP packages with an extended temperature range of – 40 °C to + 125 °C. The devices feature lead (Pb)-free terminations, and are RoHS compliant and halogen free according to IEC 61249-2-21.