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Maxim > Products > [Analog Switches and Multiplexers] 
MAX4901, MAX4902, MAX4903, MAX4904, MAX4905
Low-RON, Dual-SPST/Single-SPDT Clickless Switches with Negative Rail Capability


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Status
Active: In Production.

Description
Request Full Data Sheet
The MAX4901–MAX4905 switches feature negative signal capability that allows signals below ground to pass through without distortion. The MAX4901/MAX4902 are a dual SPST (single-pole/single-throw) and the MAX4903/MAX4904/MAX4905 are a single SPDT (single-pole/double-throw) configuration. These analog switches operate from a single +1.8V to +5.5V supply and have low 0.6Ω on-resistance, making them ideal for switching audio signals.

The MAX4905 includes a comparator that can be used for headphone detection or mute/send key function. The MAX4902/MAX4904/MAX4905 have internal shunt resistors to automatically discharge any capacitance at the NO_ and NC connection points. This reduces click-and-pop sounds that occur when switching audio signals between pre-charged points. A break-before-make feature and auto-discharge also help to reduce popping.

These SPST and SPDT switches are available in space-saving 8-pin TDFN and 9-bump UCSP™ packages and operate over the -40°C to +85°C extended temperature range.

Key Features   Applications/Uses
  		• Distortion-Free Signal Throughput Down to VCC - 5.5V
  		• Comparator for Headphone or Mute Detection (MAX4905)
  		• Clickless Switches with Internal Shunt Resistors (MAX4902/MAX4904/MAX4905)
  		• 0.6Ω (typ) Low On-Resistance (RON)
  		• 0.25Ω On-Resistance Flatness
  		• +1.8V to +5.5V Supply Voltage
  		• 0.04% THD

    		  
  		• Cell Phones
  		• MP3 Players
  		• Notebook Computers
  		• PDAs and Handheld Devices

    Key Specifications:  Switches and Multiplexers (Low Voltage)
    Part Number Functions Config. Channels Normal Position VSUPPLY (Single)
    (V)    		 VSUPPLY (Single)
    (V)    		 RON
    (Ω)    		 IL(OFF)
    (nA)    		 tON
    (ns)    		 tOFF
    (ns)    		 QINJECTION
    (pC)    		 Price
    min max max max min max See Notes
    MAX4901  Switch SPST 2 Open 1.8 5.5 1 6 100 100 125 $0.95 @1k
    MAX4902  SPST 2 Open $0.95 @1k
    MAX4903  SPDT 1 - $0.95 @1k
    MAX4904  SPDT 1 - $0.95 @1k
    MAX4905  SPDT 1 - $1.05 @1k
    See All Switches and Multiplexers (Low Voltage) (160)

    Diagram
    MAX4901, MAX4902, MAX4903, MAX4904, MAX4905: Typical Operating Circuit
    Typical Operating Circuit

    Reliability Reports
  		• Reliability Report: MAX4901.pdf MAX4902.pdf MAX4903.pdf MAX4904.pdf
  		• 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: 1-18 of 18

    MAX4901 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4901ETA+T    
    		Active TDFN-EP;8 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0059 (PDF)
    Use pkgcode/variation: T833+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4901ETA-T    
    		Active TDFN-EP;8 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0059 (PDF)
    Use pkgcode/variation: T833-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4901EBL+T    
    		Active UCSP;9 pin;2 mm²
    Outline Drawing: 21-0093 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B9+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4901EBL-T    
    		Active UCSP;9 pin;2 mm²
    Outline Drawing: 21-0093 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B9-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4902 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4902ETA+T    
    		Active TDFN-EP;8 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0059 (PDF)
    Use pkgcode/variation: T833+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4902ETA-T    
    		Active TDFN-EP;8 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0059 (PDF)
    Use pkgcode/variation: T833-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4902EBL-T    
    		Active UCSP;9 pin;2 mm²
    Outline Drawing: 21-0093 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B9-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4903 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4903ETA+  
    		Active TDFN-EP;8 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0059 (PDF)
    Use pkgcode/variation: T833+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4903ETA+T    
    		Active TDFN-EP;8 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0059 (PDF)
    Use pkgcode/variation: T833+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4903ETA-T    
    		Active TDFN-EP;8 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0059 (PDF)
    Use pkgcode/variation: T833-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4903EBL+T    
    		Active UCSP;9 pin;2 mm²
    Outline Drawing: 21-0093 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B9+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4903EBL-T    
    		Active UCSP;9 pin;2 mm²
    Outline Drawing: 21-0093 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B9-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4904 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4904ETA-T    
    		Active TDFN-EP;8 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0059 (PDF)
    Use pkgcode/variation: T833-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4904EBL+T    
    		Active UCSP;9 pin;2 mm²
    Outline Drawing: 21-0093 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B9+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4904EBL-T    
    		Active UCSP;9 pin;2 mm²
    Outline Drawing: 21-0093 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B9-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4905 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4905ETA-T    
    		Active TDFN-EP;8 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0059 (PDF)
    Use pkgcode/variation: T833-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4905ETA+T    
    		Active TDFN-EP;8 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0059 (PDF)
    Use pkgcode/variation: T833+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4905EBL-T    
    		Active UCSP;9 pin;2 mm²
    Outline Drawing: 21-0093 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B9-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis

    More Information
  		• Topmark Coding: MAX4901 MAX4902 MAX4903 MAX4904 MAX4905
  		• New Product Press Release 2005-08-31 

    Related Products
    MAX4762, MAX4763, MAX4764, MAX4764A, MAX4765 Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail Capability

    More Like This: View Product Families for Similar Products

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    Document Ref.: 19-3775; Rev 2; 2006-06-28
    This page last modified: 2007-12-12


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