ADG508A CMOS 8-Channel Analog Multiplexer

Product Details

The ADG508A and ADG509A are CMOS monolithic analog multiplexers with eight channels and dual four channels, respectively. The ADG508A switches one of eight inputs to a common output, depending on the state of three binary addresses and an enable input. The ADG509A switches one of four differential inputs to a common differential output, depending on the state of two binary addresses and an enable input. Both devices have TTL and 5 V CMOS logic-compatible digital inputs.

The ADG508A and ADG509A are designed on an enhanced LC2MOS process that gives an increased signal capability of VSS to VDD and enables operation over a wide range of supply voltages. The devices can comfortably operate anywhere in the 10.8 V to 16.5 V single- or dual-supply range. These multiplexers also feature high switching speeds and low RON.


  1. Single-/Dual-Supply Specifications with a Wide Tolerance. The devices are specified in the 10.8 V to 16.5 V range for both single and dual supplies.
  2. Extended Signal Range. The enhanced LC2MOS processing results in a high breakdown and an increased analog signal range of VSS to VDD.
  3. Break-Before-Make Switching. Switches are guaranteed break-before-make so that input signals are protected against momentary shorting.
  4. Low Leakage. Leakage currents in the range of 20 pA make these multiplexers suitable for high precision circuits.

Features and Benefits

  • 44 V supply maximum rating
  • VSS to VDD analog signal range
  • Single-/dual-supply specifications
  • Wide supply range: 10.8 V to 16.5 V
  • Extended plastic temperature range: −40°C to +85°C
  • Low power dissipation: 28 mW maximum
  • Low leakage: 20 pA typical
  • Available in 16-lead DIP/SOIC and 20-lead PLCC/LCC packages
  • Superior alternative to
    DG508A, HI-508
    DG509A, HI-509