ADG509F 8-Channel/4-Channel Fault-Protected Analog Multiplexer

Product Highlights Fault protection. The ADG508F/ADG509F can withstand continuous voltage inputs from −40 V to +55 V. When a fault occurs due to the power supplies being turned off, all the channels are turned off and only a leakage current of a few nanoamperes flows. On channel saturates while fault exists. Low RON. Fast switching times. Break-before-make switching. Switches are guaranteed break-before-make so that input signals are protected against momentary shorting. Trench isolation eliminates latch-up. A dielectric trench separates the p and n-channel MOSFETs thereby preventing latch-up.

The ADG508F and ADG509F are CMOS analog multiplexers, with the ADG508F comprising eight single channels and the ADG509F comprising four differential channels. These multiplexer provides fault protection. Using a series n-channel, p-channel, n-channel MOSFET structure, both device and signal source protection is provided in the event of an overvoltage or power loss. The multiplexer can withstand continuous overvoltage inputs from -40 V to +55 V. During fault conditions with power suppplies off, the multiplexer input (or output) appears as an open circuit and only a few nanoamperes of leakage current will flow. This protects not only the multiplexer and the circuitry driven by the multiplexer, but also protects the sensors or signal sources that drive the multiplexer.

The ADG508F switches one of eight inputs to a common output as determined by the 3-bit binary address lines A0, A1 and A2. The ADG509F switches one of four differential inputs to a common differential output as determined by the 2-bit binary address lines A0 and A1. An EN input on each device is used to enable or disable the device. When disabled, all channels are switched OFF.

Applications
  • Existing multiplexer applications (both fault-protected and nonfault-protected)
  • New designs requiring multiplexer functions
Features and Benefits
  • All switches off with power supply off
  • Analog output of on channel clamped within power supplies if an overvoltage occurs
  • Latch-up proof construction
  • Low on resistance (270 Ω typical)
  • Fast Switching Times
    ton 230 ns maximum
    toff 130 ns maximum
  • Low power dissipation (3.3 mW maximum)
  • Fault and overvoltage protection (−40 V to +55 V)
  • Break-before-make construction
  • TTL and CMOS compatible inputs
Switches & Multiplexers
Building Technology
  • Building Control and Automation
  • Heating Ventilation and Air Conditioning
Aerospace and Defense
  • Solutions
ADG509F SPICE Macro-Model
Data Sheets
Documentnote
ADG508F/ADG509F: 8-Channel/4-Channel Fault-Protected Analog Multiplexers Data Sheet (Rev. F)PDF 281 kB
Application Notes
Documentnote
AN-1024: How to Calculate the Settling Time and Sampling Rate of a Multiplexer (Rev. 0)PDF 210 kB
User Guides
Documentnote
UG-945: Evaluation Board for 16-Lead TSSOP Devices in the Switches and Multiplexers Portfolio (Rev. 0)PDF 291.91 K
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADG509FBRN Production16 ld SOICOTH 48-40 to 85C4.643.94N
ADG509FBRNZ Production16 ld SOICOTH 48-40 to 85C4.023.41Y
ADG509FBRNZ-REEL7 Production16 ld SOICREEL 1000-40 to 85C03.41Y
ADG509FBRUZ Production16 ld TSSOPOTH 96-40 to 85C4.023.41Y
ADG509FBRUZ-REEL7 Production16 ld TSSOPREEL 1000-40 to 85C03.41Y
ADG509FBRWZ Production16 ld SOIC - WideOTH 47-40 to 85C3.93.31Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
EVAL-16TSSOPEBZEvaluation Board99Y
Reference Materials
ADG508F/ADG509F: 8-Channel/4-Channel Fault-Protected Analog Multiplexers Data Sheet (Rev. F) adg508f
ADG509F SPICE Macro-Model Rev. B, 5/95 adg509f
ADG509FB SPICE Macro-Model Rev. B, 5/95 adg509f
ADG509FT SPICE Macro-Model Rev. B, 5/95 adg509f
AN-1024: 如何计算多路复用器的建立时间和采样速率 (Rev. 0) adg904
AN-1024: How to Calculate the Settling Time and Sampling Rate of a Multiplexer (Rev. 0) adg904
UG-945: Evaluation Board for 16-Lead TSSOP Devices in the Switches and Multiplexers Portfolio (Rev. 0) adg5412bf
Switches and Multiplexers Product Selection Guide adg2128
CMOS Switches Offer High Performance in Low Power, Wideband Applications ad75019