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Maxim > Products > Temperature Sensors 
MAX7500, MAX7501, MAX7502, MAX7503, MAX7504
Digital Temperature Sensors and Thermal Watchdog with Bus Lockup Protection

Digital Temperature Sensors and Thermal Watchdog with Bus-Lockup Protection and Manual Reset


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Data Sheet
FULL DATA SHEET (PDF, 272kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX7500–MAX7504 temperature sensors accurately measure temperature and provide an overtemperature alarm/interrupt/shutdown output. These devices convert the temperature measurements to digital form using a high-resolution, sigma-delta, analog-todigital converter (ADC). Communication is through an I²C-compatible 2-wire serial interface. The MAX7500/MAX7501/MAX7502 integrate a timeout feature that offers protection against I²C bus lockups. The MAX7503/MAX7504 do not include the timeout feature.

The 2-wire serial interface accepts standard write byte, read byte, send byte, and receive byte commands to read the temperature data and configure the behavior of the open-drain overtemperature shutdown output.

The MAX7500 features three address select lines, while the MAX7501–MAX7504 feature two address select lines and an active-low RESET input. The MAX7500/MAX7501/MAX7502s' 3.0V to 5.5V supply voltage range, low 250µA supply current, and a lockup-protected I²C-compatible interface make them ideal for a wide range of applications, including personal computers (PCs), electronic test equipment, and office electronics.

The MAX7500–MAX7504 are available in 8-pin µMAX® and SO packages and operate over the -55°C to +125°C temperature range.

Key Features   Applications/Uses
  • Timeout Prevents Bus Lockup (MAX7500, MAX7501, MAX7502)
  • Hardware Reset for Added Protection
  • I²C Bus Interface
  • 3.0V to 5.5V Supply Voltage Range
  • 250µA (typ) Operating Supply Current
  • 3µA (typ) Shutdown Supply Current
  • ±1.5°C (max) Temperature Accuracy (-25°C to +100°C, 3-σ)
  • µMAX, SO Packages Save Space
  • Separate Open-Drain OS Output Operates as Interrupt or Comparator/Thermostat Input
  • Register Readback Capability
  • Improved LM75 Second Source
  • UL Certified

 
  		• Electronic Test Equipment
  		• Industrial Process Control
  		• Office Electronics
  		• PCs
  		• Servers

    Key Specifications:   Temperature Sensors
    Part Number Sensor Type Alarm Output Functions Interface Accuracy (±°C) Parasite Power Temperature Threshold Temperature Resolution (Bits) Price**
    MAX7500  Local  -   -  2-Wire/SMBus 2 No Programmable  -  $0.65 @ 1k
    MAX7501  Overt
    •Standalone Thermostat
    		 No Programmable 11 $0.65 @ 1k
    MAX7502  Overt
    •Standalone Thermostat
    		 No Programmable 11 $0.65 @ 1k
    MAX7503  Overt
    •Standalone Thermostat
    		 No Programmable 11 $0.65 @ 1k
    MAX7504  Overt
    •Single Temperature Alarm
    		  -   -   -  $0.65 @ 1k
    See All Temperature Sensors (99)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    Evaluation Kits
    none

    Design Guides
  		• Temp Sensors (PDF)

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

    Software/Models
  		• MAX7500 IBIS Model

    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: 1-43 of 43

    MAX7500 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX7500MTA-T  



    		-55°C to +125°C See data sheet
    MAX7500MSA  
    		SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-2*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7500MSA-T  
    		SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-2*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7500MSA+  
    		SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+2*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7500MSA+T  
    		SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+2*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7500MUA+T  
    		uMAX;8 pin;
    Dwg: 21-0036 (PDF)
    Use pkgcode/variation: U8+1*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7500MUA+  
    		uMAX;8 pin;
    Dwg: 21-0036 (PDF)
    Use pkgcode/variation: U8+1*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7500MUA-T  
    		uMAX;8 pin;
    Dwg: 21-0036 (PDF)
    Use pkgcode/variation: U8-1*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7500MUA  
    		uMAX;8 pin;
    Dwg: 21-0036 (PDF)
    Use pkgcode/variation: U8-1*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7501 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX7501MTA-T  



    		-55°C to +125°C See data sheet
    MAX7501MSA-T  



    		-55°C to +125°C See data sheet
    MAX7501MSA+T  
    		SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+2*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7501MSA+  
    		SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+2*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7501MSA  
    		SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-2*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7501MUA+T  
    		uMAX;8 pin;
    Dwg: 21-0036 (PDF)
    Use pkgcode/variation: U8+1*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7501MUA+  
    		uMAX;8 pin;
    Dwg: 21-0036 (PDF)
    Use pkgcode/variation: U8+1*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7501MUA  
    		uMAX;8 pin;
    Dwg: 21-0036 (PDF)
    Use pkgcode/variation: U8-1*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7501MUA-T  



    		-55°C to +125°C See data sheet
    MAX7502 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX7502MTA-T  



    		-55°C to +125°C See data sheet
    MAX7502MSA  
    		SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-2*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7502MSA+T  
    		SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+2*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7502MSA+  
    		SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+2*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7502MSA-T  



    		-55°C to +125°C See data sheet
    MAX7502MUA+  
    		uMAX;8 pin;
    Dwg: 21-0036 (PDF)
    Use pkgcode/variation: U8+1*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7502MUA  
    		uMAX;8 pin;
    Dwg: 21-0036 (PDF)
    Use pkgcode/variation: U8-1*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7502MUA-T  



    		-55°C to +125°C See data sheet
    MAX7502MUA+T  
    		uMAX;8 pin;
    Dwg: 21-0036 (PDF)
    Use pkgcode/variation: U8+1*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7503 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX7503MSA+  
    		SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+2*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7503MSA+T  



    		-55°C to +125°C See data sheet
    MAX7503MSA-T  



    		-55°C to +125°C See data sheet
    MAX7503MSA  
    		SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-2*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7503MUA+T  
    		uMAX;8 pin;
    Dwg: 21-0036 (PDF)
    Use pkgcode/variation: U8+1*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7503MUA+  
    		uMAX;8 pin;
    Dwg: 21-0036 (PDF)
    Use pkgcode/variation: U8+1*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7503MUA-T  



    		-55°C to +125°C See data sheet
    MAX7503MUA  
    		uMAX;8 pin;
    Dwg: 21-0036 (PDF)
    Use pkgcode/variation: U8-1*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7504 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX7504MSA+  
    		SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+2*
    		-55°C to +125°C See data sheet
    Materials Analysis
    MAX7504MSA+T  



    		-55°C to +125°C See data sheet
    MAX7504MSA-T  



    		-55°C to +125°C See data sheet
    MAX7504MSA  
    		SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-2*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7504MUA+T  
    		uMAX;8 pin;
    Dwg: 21-0036 (PDF)
    Use pkgcode/variation: U8+1*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7504MUA+  
    		uMAX;8 pin;
    Dwg: 21-0036 (PDF)
    Use pkgcode/variation: U8+1*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7504MUA  
    		uMAX;8 pin;
    Dwg: 21-0036 (PDF)
    Use pkgcode/variation: U8-1*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7504MUA-T  



    		-55°C to +125°C See data sheet

    More Information
  		• New Product Press Release 2004-08-16 

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    Document Ref.: 19-3382; Rev 3; 2008-09-18
    This page last modified: 2008-09-18




             


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