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ADG465:  Single Channel Protector in SOT-23/µSOIC Packages

Product Details


The ADG465 is a single channel protector in an SOT-23 package. The channel protector is placed in series with the signal path, and will protect sensitive components from voltage transience in the signal path whether or not the power supplies are present. Because the channel protection works regardless of the presence of the supplies, the channel protectors are ideal for use in applications where correct power sequencing cannot always be guaranteed to protect analog inputs (e.g., hot-insertion rack systems). This is discussed further, and some example circuits are given, in the Applications section of the data sheet.

The ADG465 can operate from both bipolar and unipolar supplies. The channels are normally on when power is connected, and open circuit when power is disconnected. With power supplies of ±15 V, the on-resistance of the ADG465 is 80 Ω typ, with a leakage current of ±1 nA max. When power is disconnected, the input leakage current is approximately ±5 nA typ.

The ADG465 is available in a 6-lead plastic surface mount SOT-23 package, and an 8-lead mSOIC package.

Applications
  • ATE Equipment
  • Sensitive Measurement Equipment
  • Hot-Insertion Rack Systems
  • ADC Input Channel Protection

FEATURES and BENEFITS

  • Fault and Overvoltage Protection up to ±40 V
    - Signal Paths Open Circuit with Power Off
    - Signal Path Resistance of RON with
    Power On
  • 44 V Supply Maximum Ratings
  • Low On-Resistance (80 Ω typ)
  • 1 nA Max Path Current Leakage
    @ +25°C
  • Low Power Dissipation 0.8µW typ
  • Latchup-Proof Construction
  • 6-Lead SOT-23/8-Lead µSOIC Packages

Functional Block Diagram for ADG465

Documentation

Title Content Type File Type
ADG465: Single Channel Protector in an SOT-23 Package Data Sheet  (Rev A, 09/1998) (pdf, 111 kB) Data Sheets PDF
Data-acquisition system uses fault protection
By Catherine Redmond, Analog Devices, Inc. (EDN, 4/15/2004)
Technical Articles HTML
CMOS Switches Offer High Performance in Low Power, Wideband Applications  (pdf, 320 kB)
by Theresa Corrigan and Ray Goggin, Analog Devices, Inc. (High Frequency Electronics, February 2004)
Technical Articles PDF
Temperature monitor measures three thermal zones
by Susan Pratt, Analog Devices, Inc. (EDN, 12/11/03)
Technical Articles HTML
Enhanced Multiplexing for MEMS Optical Cross Connects
by James Caffrey (Fiberoptic Product News, 8/2003)
Technical Articles HTML
Winning the Battle Against Latchup in CMOS Analog Switches
(Analog Dialogue, Vol. 35, No. 5, October, 2001)
Analog Dialogue HTML
Switches and Multiplexers Product Selection Guide  (pdf, 1462 kB) Product Selection Guide PDF
Switch Parametric Search Product Selection Guide HTML
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Evaluation Kits & Symbols & Footprints

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

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Price, packaging, availability

ADG465 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADG465BRM Status: Production 8 ld MSOP 8 Ind Tube, 50 - - N  Material Info PCN/PDN Purchase
ADG465BRM-REEL Status: Production 8 ld MSOP 8 Ind Reel, 3000 - - N  Material Info PCN/PDN Contact ADI
ADG465BRMZ Status: Production 8 ld MSOP 8 Ind Tube, 50 - - Y  Material Info PCN/PDN Purchase
ADG465BRT-REEL Status: Last Time Buy 6 ld SOT-23 6 Ind Reel, 10000 - $0.97 N  Material Info PCN/PDN Purchase
ADG465BRT-REEL7 Status: Production 6 ld SOT-23 6 Ind Reel, 3000 - - N  Material Info PCN/PDN Purchase
ADG465BRTZ-REEL7 Status: Production 6 ld SOT-23 6 Ind Reel, 3000 - - Y  Material Info PCN/PDN Purchase Sample
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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