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Maxim > Products > [Analog Switches and Multiplexers]  [Protection and Isolation] 
MAX366, MAX367
Signal Line Circuit Protector with Three Independent Protectors


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 112kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX366 and MAX367 are multiple, two-terminal circuit protectors. Placed in series with signal lines, each two-terminal device guards sensitive circuit components against voltages near and beyond the normal supply voltages. These devices are used at interfaces where sensitive circuits are connected to the external world and could encounter damaging voltages (up to 35V beyond the supply rails) during power-up, power-down, or fault conditions.

The MAX366 contains three independent protectors and the MAX367 contains eight. They can protect analog signals using either unipolar (4.5V to 36V) or bipolar (±2.25V to ±18V) power supplies. Each protector is symmetrical. Input and output terminals may be freely interchanged.

These devices are voltage-sensitive MOSFET transistor arrays that are normally on when power is applied and normally open circuit when power is off. With ±10V supplies, on-resistance is 100Ω max and leakage is less than 1nA at +25°C.

When signal voltages exceed or are within approximately 1.5V of either power-supply voltage (including when power is off), the two-terminal resistance increases dramatically, limiting fault current as well as output voltage to sensitive circuits. The protected side of the switch maintains the correct polarity and clamps approximately 1.5V below the supply rail. There are no "glitches" or polarity reversals going into or coming out of a fault condition.

Key Features   Applications/Uses
  • ±40V Overvoltage Protection
  • Open Signal Paths with Power Off
  • 100Ω Signal Paths with Power On
  • 1nA Max Path Leakage at +25°C
  • 44V Maximum Supply Voltage Rating
  • Automatic Protection; No Programming or Controls

 
  		• Automated Test Equipment (ATE)
  		• Data Acquisition
  		• Hot-Insertion Boards/Systems
  		• Process Control Systems
  		• Redundant/Backup Systems
  		• Sensitive Instruments

    Key Specifications:  Signal-Line Protectors
    Part Number Functions Signal Path Leakage
    (±nA)    		 ΔRON Analog Signal Range
    (V)    		 Features VSUPPLY
    (V)    		 VSUPPLY (Dual)
    (±V)    		 RON
    (Ω)    		 Fault Protect.
    (±V)    		 Package/Pins Smallest Available Pckg.
    (mm2)    		 Price
    max Dual max max w/pins See Notes
    MAX366  3-Line 1 7 -12.5 to +13.5 Automatic Protection 4.5 to 36.0 2.25 to 18.0 100 40
    CDIP(N)/8
    PDIP(N)/8
    SOIC(N)/8
    		 81.9 $1.42 @1k
    MAX367  8-Line
    CDIP(N)/18
    PDIP(N)/18
    SOIC(W)/18
    		 125.1 $2.43 @1k
    See All Signal-Line Protectors (6)

    Diagram
    MAX366, MAX367: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 761: Automatic Test Equipment on a Budget - MAX367
  		• Application Note 1132: Fault Protection Saves Multiplexers, Switches, and Downstream Circuitry - MAX366

    Design Guides
  		• Signal Routing & Protection (PDF)

    Reliability Reports
  		• Show FIT data for:
  		• Request Reliability Report for:

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-28 of 28

    MAX366 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX366MJA    
    		Active CDIP(N);8 pin;82.6 mm²
    Outline Drawing: 21-0045 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: J8-2*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX366C/D    
    		Active DICE SALES;NA pin;0 mm²

    Land Pattern: Not Applicable
    Use pkgcode/variation: DICE*
    		See data sheet
    MAX366EPA+  
    		Active PDIP(N);8 pin;81.9 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8+3*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX366CPA  
    		Active PDIP(N);8 pin;81.9 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX366CPA+  
    		Active PDIP(N);8 pin;81.9 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX366EPA    
    		Active PDIP(N);8 pin;81.9 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-3*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX366CSA  
    		Active SOIC(N);8 pin;30.9 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-5*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX366CSA-T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX366CSA+  
    		Active SOIC(N);8 pin;30.9 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+5*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX366CSA+T    
    		Active SOIC(N);8 pin;30.9 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+5*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX366ESA  
    		Active SOIC(N);8 pin;30.9 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-5*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX366ESA-T    
    		Active SOIC(N);8 pin;30.9 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-5*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX366ESA+  
    		Active SOIC(N);8 pin;30.9 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+5*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX366ESA+T    
    		Active SOIC(N);8 pin;30.9 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+5*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX367 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX367MJN    
    		Active CDIP(N);18 pin;198.2 mm²
    Outline Drawing: 21-0045 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: J18-2*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX367C/D    
    		Active DICE SALES;NA pin;0 mm²

    Land Pattern: Not Applicable
    Use pkgcode/variation: DICE*
    		See data sheet
    MAX367CPN  
    		Active PDIP(N);18 pin;192 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P18-6*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX367CPN+  
    		Active PDIP(N);18 pin;192 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P18+6*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX367EPN  
    		Active PDIP(N);18 pin;192 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P18-6*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX367EPN+  
    		Active PDIP(N);18 pin;192 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P18+6*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX367EWN+  
    		Active SOIC(W);18 pin;125.1 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0181 (PDF)
    Use pkgcode/variation: W18+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX367EWN+T    
    		Active SOIC(W);18 pin;125.1 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0181 (PDF)
    Use pkgcode/variation: W18+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX367CWN  
    		Active SOIC(W);18 pin;125.1 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0181 (PDF)
    Use pkgcode/variation: W18-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX367CWN-T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX367CWN+  
    		Active SOIC(W);18 pin;125.1 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0181 (PDF)
    Use pkgcode/variation: W18+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX367CWN+T    
    		Active SOIC(W);18 pin;125.1 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0181 (PDF)
    Use pkgcode/variation: W18+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX367EWN  
    		Active SOIC(W);18 pin;125.1 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0181 (PDF)
    Use pkgcode/variation: W18-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX367EWN-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet

    Notes and Comments
  		• Automatic protection; no programming or controls

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    Document Ref.: 19-0326; Rev 0; 1994-12-01
    This page last modified: 2007-05-30


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