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Maxim > Products > [Temperature Sensors] 
MAX6629, MAX6630, MAX6631, MAX6632
12-Bit + Sign Digital Temperature Sensors with Serial Interface


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Data Sheet
FULL DATA SHEET (PDF, 600kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX6629-MAX6632 are local digital temperature sensors with an SPI™-compatible serial interface. The temperature is converted to a 12-bit + sign word with a resolution of 0.0625°C/LSB. An extended temperature range provides useful readings up to +150°C.

These sensors are 3-wire serial interface SPI compatible, allowing the MAX6629-MAX6632 to be readily connected to a variety of microcontrollers (µCs). The MAX6629-MAX6632 are read-only devices, simplifying their use in systems where only temperature data is required.

All four digital temperature sensors require very little supply current, making them ideal for portable systems. The MAX6631/MAX6632 perform a temperature-to-digital conversion once every 8s and require minimal average supply current, 32µA (typ). The MAX6629/ MAX6630 perform a conversion once every 0.5s and require only 200µA (typ) supply current. Any of these temperature sensors can perform conversions more often—up to approximately four conversions per second by reading the conversion results more often.

Key Features   Applications/Uses
  • Low Power Consumption
    • 32µA typ (MAX6631/MAX6632)
    • 200µA typ (MAX6629/MAX6630)
  • 12-Bit + Sign Resolution with 0.0625°C/LSB
  • Accuracy
    • ±1°C (max) from 0°C to +70°C
    • ±2.3°C (max) from -20°C to +100°C
    • ±3.2°C (max) from -40°C to +125°C
    • ±6.5°C (max) at +150°C
  • +150°C Extended Temperature Range
  • SPI-Compatible Serial Interface
  • +3.0V to +5.5V Supply Range
  • 6-Pin SOT23 Package

 
  		• Automotive
  		• Cellular
  		• Hard Disk Drive
  		• HVAC
  		• Industrial Control Systems

    Key Specifications:   Temperature Sensors
    Part Number Sensor Type Interface Accuracy (±°C) Parasite Power Temperature Resolution (Bits) Operating Temp. Range (°C) Smallest Available Package (max w/pins) (mm2) Price**
    MAX6629  Local 3-Wire/SPI 3.2 No 12 -55 to +150 9 $1.39 @ 1k
    MAX6630  $1.39 @ 1k
    MAX6631  $1.49 @ 1k
    MAX6632  $1.49 @ 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.

    Diagram
    MAX6629, MAX6630, MAX6631, MAX6632: Typical Application Circuit
    Typical Application Circuit

    Application Notes
  		• Application Note 1139: Temperature Sensor Has One Digital Input and One Digital Output - MAX6629, MAX6630, MAX6631, MAX6632

    Evaluation Kits
  		• MAX6629EVKIT

    Design Guides
  		• Temp Sensors (PDF)

    Reliability Reports
  		• Reliability Report: MAX6630.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: 1-22 of 22

    MAX6629 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX6629MUT#G16  
    		SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: U6FH-6*
    		-55°C to +125°C RoHS/Lead-Free: RoHS Qualified
    Materials Analysis
    MAX6629MUT#TG16    
    		SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: U6FH-6*
    		-55°C to +125°C RoHS/Lead-Free: RoHS Qualified
    Materials Analysis
    MAX6629MUT  
    		SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6F-6*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6629MUT-T    
    		SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6F-6*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6629MTT+  
    		TDFN-EP;6 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0058 (PDF)
    Use pkgcode/variation: T633+2*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6629MTT+T    
    		TDFN-EP;6 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0058 (PDF)
    Use pkgcode/variation: T633+2*
    		-55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6630 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX6630MUT#TG16    
    		SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: U6FH-6*
    		-55°C to +125°C RoHS/Lead-Free: RoHS Qualified
    Materials Analysis
    MAX6630MUT#G16  
    		SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: U6FH-6*
    		-55°C to +125°C RoHS/Lead-Free: RoHS Qualified
    Materials Analysis
    MAX6630MUT    
    		SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6F-6*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6630MUT-T    
    		SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6F-6*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6630MTT+  
    		TDFN-EP;6 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0058 (PDF)
    Use pkgcode/variation: T633+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6630MTT+T    
    		TDFN-EP;6 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0058 (PDF)
    Use pkgcode/variation: T633+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6631 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX6631MUT    
    		SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6F-6*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6631MUT-T    
    		SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6F-6*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6631MTT+T    
    		TDFN-EP;6 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0058 (PDF)
    Use pkgcode/variation: T633+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6631MTT+  
    		TDFN-EP;6 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0058 (PDF)
    Use pkgcode/variation: T633+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6632 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX6632MTT    


    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX6632MUT    
    		SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6F-6*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6632MUT-T    
    		SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6F-6*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6632MTT+  
    		TDFN-EP;6 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0058 (PDF)
    Use pkgcode/variation: T633+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6632MTT+T    
    		TDFN-EP;6 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0058 (PDF)
    Use pkgcode/variation: T633+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6632MTT-T    
    		TDFN-EP;6 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0058 (PDF)
    Use pkgcode/variation: T633+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  		• Topmark Coding: MAX6629 MAX6630 MAX6631 MAX6632
  		• New Product Press Release 2001-09-07  2001-05-29 

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     Description 
     Key Features 
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     Diagram 

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     Engineering Journals 
     Reliability Reports 
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    Document Ref.: 19-2047; Rev 3; 2005-09-01
    This page last modified: 2008-07-10


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