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Maxim > Products > [Amplifiers and Comparators] 
MAX4240, MAX4241, MAX4242, MAX4243, MAX4244
Single/Dual/Quad, +1.8V/10µA, SOT23, Beyond-the-Rails Op Amps


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 2.7MB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX4240–MAX4244 family of micropower op amps operate from a single +1.8V to +5.5V supply or dual ±0.9V to ±2.75V supplies and have Beyond-the-Rails™ inputs and rail-to-rail output capabilities. These amplifiers provide a 90kHz gain-bandwidth product while using only 10µA of supply current per amplifier. The MAX4241/MAX4243 have a low-power shutdown mode that reduces supply current to less than 1µA and forces the output into a high-impedance state. Although the minimum operating voltage is specified at +1.8V, these devices typically operate down to +1.5V. The combination of ultra-low-voltage operation, Beyond-the-Rails inputs, rail-to-rail outputs, and ultra-low power consumption makes these devices ideal for any portable/two-cell battery-powered system.

These amplifiers have an input common-mode range that extends 200mV beyond each rail, and their outputs typically swing to within 9mV of the rails with a 100kΩ load. Beyond-the-Rails input and rail-to-rail output characteristics allow the full power-supply voltage to be used for signal range. The combination of low input offset voltage, low input bias current, and high open-loop gain makes them suitable for low-power/low-voltage precision applications.

The MAX4240 is offered in a space-saving 5-pin SOT23 package. All specifications are guaranteed over the -40°C to +85°C extended temperature range.

Key Features   Applications/Uses
  • Ultra-Low-Voltage Operation:
    • Guaranteed Down to +1.8V
    • Typical Operation to +1.5V
  • Ultra-Low Power Consumption:
    • 10µA Supply Current per Amplifier
    • 1µA Shutdown Mode (MAX4241/MAX4243)
    • Up to 200,000 Hours Operation from Two AA Alkaline Cells
  • Beyond-the-Rails Input Common-Mode Range
  • Outputs Swing Rail-to-Rail
  • No Phase Reversal for Overdriven Inputs
  • 200µV Input Offset Voltage
  • Unity-Gain Stable for Capacitive Loads up to 200pF
  • 90kHz Gain-Bandwidth Product
  • Available in Space-Saving 5-Pin SOT23 and 8-Pin µMAX® Packages

 
  		• Cellular Handsets
  		• Cellular Phones
  		• Digital Cameras (DIGICAMs)
  		• Digital Scales
  		• GPS Solutions
  		• MP3 and Portable Media Players
  		• Notebook Computers
  		• PDAs
  		• Portable/Battery-Powered Electronic Equipment
  		• Sensor Amplifiers
  		• Strain Gauges
  		• Two-Cell Battery Powered Systems

    Key Specifications:  Operational Amplifiers
    Part Number Amps. Rail to Rail AVCL VSUPPLY (Total)
    (V)    		 VSUPPLY (Total)
    (V)    		 ICC per Amp.
    (µA)    		 ICC per Amp.
    (µA)    		 VOS
    (µV)    		 CMRR @DC
    (dB)    		 PSRR @DC
    (dB)    		 Input IBIAS
    (nA)    		 Unity Gain BW
    (MHz)    		 Slew Rate
    (V/µs)    		 en
    (nV/√Hz)    		 in
    (pA/√Hz)    		 Low Pwr. Shutdn Package/Pins Price
    min min max typ max max typ typ max typ typ See Notes
    MAX4240  1 Input/Output 1 1.8 5.5 14 18 1400 94 85 6 0.09 0.04 70 0.05 No
    SOT/5
    		 $0.83 @1k
    MAX4241  1 750 Yes
    µMAX/8
    SOIC(N)/8
    		 $0.95 @1k
    MAX4242  2 880 No
    µMAX/8
    SOIC(N)/8
    		 $1.30 @1k
    MAX4243  2 880 Yes
    µMAX/10
    SOIC(N)/14
    		 $1.45 @1k
    MAX4244  4 880 No
    SOIC(N)/14
    		 $2.20 @1k
    See All Operational Amplifiers (145)

    Diagram
    MAX4240, MAX4241, MAX4242, MAX4243, MAX4244: Pin Configurations
    Pin Configurations

    Application Notes
  		• Application Note 741: Rail-to-Rail Outputs and Beyond-the-Rails Inputs: The Inside Story on Micropower Op Amps - MAX4240, MAX4242
  		• Application Note 781: AC-Coupled Amplifier Requires No DC Bias - MAX4242

    Design Guides
  		• Amplifiers and Sensors (PDF)
  		• Video (PDF)

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

    Software/Models
  		• MAX4240 Macromodel
  		• MAX4240SLEW Test Circuit File

    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: 1-31 of 31

    MAX4240 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4240EUK+  
    		Active SOT;5 pin;9 mm²
    Outline Drawing: 21-0057 (PDF)
    Land Pattern: 90-0174 (PDF)
    Use pkgcode/variation: U5+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4240EUK    
    		Active SOT;5 pin;9 mm²
    Outline Drawing: 21-0057 (PDF)
    Land Pattern: 90-0174 (PDF)
    Use pkgcode/variation: U5-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4240EUK-T    
    		Active SOT;5 pin;9 mm²
    Outline Drawing: 21-0057 (PDF)
    Land Pattern: 90-0174 (PDF)
    Use pkgcode/variation: U5-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4240EUK+T    
    		Active SOT;5 pin;9 mm²
    Outline Drawing: 21-0057 (PDF)
    Land Pattern: 90-0174 (PDF)
    Use pkgcode/variation: U5+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4241 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4241ESA    
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4241ESA-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX4241ESA+  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4241ESA+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX4241EUA    
    		Active µMAX;8 pin;16 mm²
    Outline Drawing: 21-0036 (PDF)
    Land Pattern: 90-0092 (PDF)
    Use pkgcode/variation: U8-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4241EUA-T    
    		Active µMAX;8 pin;16 mm²
    Outline Drawing: 21-0036 (PDF)
    Land Pattern: 90-0092 (PDF)
    Use pkgcode/variation: U8-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4241EUA+  
    		Active µMAX;8 pin;16 mm²
    Outline Drawing: 21-0036 (PDF)
    Land Pattern: 90-0092 (PDF)
    Use pkgcode/variation: U8+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4241EUA+T    
    		Active µMAX;8 pin;16 mm²
    Outline Drawing: 21-0036 (PDF)
    Land Pattern: 90-0092 (PDF)
    Use pkgcode/variation: U8+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4242 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4242C/D    
    		Active DICE SALES;NA pin;0 mm²

    Land Pattern: Not Applicable
    Use pkgcode/variation: DICE*
    		See data sheet
    MAX4242ESA    
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4242ESA-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX4242ESA+  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4242ESA+T    
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4242EUA    
    		Active µMAX;8 pin;16 mm²
    Outline Drawing: 21-0036 (PDF)
    Land Pattern: 90-0092 (PDF)
    Use pkgcode/variation: U8-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4242EUA-T    
    		Active µMAX;8 pin;16 mm²
    Outline Drawing: 21-0036 (PDF)
    Land Pattern: 90-0092 (PDF)
    Use pkgcode/variation: U8-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4242EUA+  
    		Active µMAX;8 pin;16 mm²
    Outline Drawing: 21-0036 (PDF)
    Land Pattern: 90-0092 (PDF)
    Use pkgcode/variation: U8+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4242EUA+T    
    		Active µMAX;8 pin;16 mm²
    Outline Drawing: 21-0036 (PDF)
    Land Pattern: 90-0092 (PDF)
    Use pkgcode/variation: U8+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4243 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4243ESD    
    		Active SOIC(N);14 pin;54 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0112 (PDF)
    Use pkgcode/variation: S14-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4243ESD-T    
    		Active SOIC(N);14 pin;54 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0112 (PDF)
    Use pkgcode/variation: S14-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4243EUB+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX4243EUB+  
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4243EUB    
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4243EUB-T    
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4244 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4244ESD    
    		Active SOIC(N);14 pin;54 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0112 (PDF)
    Use pkgcode/variation: S14M-5*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4244ESD-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX4244ESD+  
    		Active SOIC(N);14 pin;54 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0112 (PDF)
    Use pkgcode/variation: S14M+5*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4244ESD+T    
    		Active SOIC(N);14 pin;54 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0112 (PDF)
    Use pkgcode/variation: S14M+5*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    Notes and Comments
    • 2-cell operation, single, rail-to-rail I/O, low power (MAX4240)
    • 2-cell operation, single, rail-to-rail I/O, low power with shutdown (MAX4241)
    • 2-cell operation, dual, rail-to-rail I/O, low power (MAX4242)
    • 2-cell operation, dual, rail-to-rail I/O, low power with shutdown (MAX4243)
    • 2-cell operation, quad, rail-to-rail I/O, low power (MAX4244)

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    Document Ref.: 19-1343; Rev 3; 2006-12-29
    This page last modified: 2009-09-07


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