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Maxim > Products > Analog-to-Digital Converters  LED Lighting and Display Power 
MAX138, MAX139, MAX140
3 1/2 Digit ADC with Reference, Charge Pump, and Direct LED Drivers

Operates with Single +2.5V to +7V Supply, Accepts Bipolar Inputs


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Data Sheet
FULL DATA SHEET (PDF, 7.6MB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Key Specifications:   Dual-Slope & Display-Oriented ADCs
Part Number Resolution (±Counts) Output Type Typ. Supply Current (mA) Ref. (V) Supply Voltage (V) RoHS Available Package Operating Temp. Range (°C) Price**
MAX138  2000 LCD 0.2 Int/Ext 2.5 to 7.0 Yes Ceramic DIP/40
MQFP/44
PDIP/40
PLCC/44 		-40 to +85
0 to +70 		$6.30 @ 1k
MAX139  LED MQFP/44
PDIP/40
PLCC/44 		$6.08 @ 1k
MAX140  LED MQFP/44
PDIP/40
PLCC/44 		$4.68 @ 1k
See All Dual-Slope & Display-Oriented ADCs (31)
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.

Application Notes
  		• Application Note 1883: LEDs Are Still Popular (and Improving) after All These Years - MAX139, MAX140
  		• Application Note 2102: Migrating from Integrating ADC Architectures to Sigma Delta - MAX138, MAX139, MAX140

    Evaluation Kits
    none

    Design Guides
  		• A/D Converters (PDF)
  		• Temp Sensors (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: 1-52 of 52

    MAX138 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX138CMH-TD  



    		0°C to +70°C See data sheet
    MAX138EQH+TD  



    		-40°C to +85°C See data sheet
    MAX138EQH-TD  



    		-40°C to +85°C See data sheet
    MAX138EJL  
    		Ceramic DIP;40 pin;
    Dwg: 21-0046 (PDF)
    Use pkgcode/variation: J40-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX138C/D  
    		DICE SALES;

    Use pkgcode/variation: DICE*
    		See data sheet
    MAX138CMH+TD  
    		MQFP;44 pin;
    Dwg: 21-0826 (PDF)
    Use pkgcode/variation: M44+5*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX138CMH-D  
    		MQFP;44 pin;
    Dwg: 21-0826 (PDF)
    Use pkgcode/variation: M44-5*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX138CMH+D  
    		MQFP;44 pin;
    Dwg: 21-0826 (PDF)
    Use pkgcode/variation: M44+5*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX138CPL  
    		PDIP;40 pin;
    Dwg: 21-0044 (PDF)
    Use pkgcode/variation: P40-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX138CPL+  
    		PDIP;32 pin;
    Dwg: 21-0044 (PDF)
    Use pkgcode/variation: P40+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX138EPL  
    		PDIP;40 pin;
    Dwg: 21-0044 (PDF)
    Use pkgcode/variation: P40-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX138EPL+  
    		PDIP;32 pin;
    Dwg: 21-0044 (PDF)
    Use pkgcode/variation: P40+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX138CQH-D  
    		PLCC;44 pin;
    Dwg: 21-0049 (PDF)
    Use pkgcode/variation: Q44-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX138CQH-TD  
    		PLCC;44 pin;
    Dwg: 21-0049 (PDF)
    Use pkgcode/variation: Q44-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX138CQH+TD  
    		PLCC;44 pin;
    Dwg: 21-0049 (PDF)
    Use pkgcode/variation: Q44+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX138CQH+D  
    		PLCC;44 pin;
    Dwg: 21-0049 (PDF)
    Use pkgcode/variation: Q44+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX138EQH+D  
    		PLCC;44 pin;
    Dwg: 21-0049 (PDF)
    Use pkgcode/variation: Q44+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX138EQH-D  
    		PLCC;44 pin;
    Dwg: 21-0049 (PDF)
    Use pkgcode/variation: Q44-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX139 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX139CMH-TD  



    		0°C to +70°C See data sheet
    MAX139CMH+TD  



    		0°C to +70°C See data sheet
    MAX139CQH+TD  



    		0°C to +70°C See data sheet
    MAX139CQH-TD  



    		0°C to +70°C See data sheet
    MAX139EQH+TD  



    		-40°C to +85°C See data sheet
    MAX139EQH-TD  



    		-40°C to +85°C See data sheet
    MAX139C/D  
    		DICE SALES;

    Use pkgcode/variation: DICE*
    		See data sheet
    MAX139CMH+D  
    		MQFP;44 pin;
    Dwg: 21-0826 (PDF)
    Use pkgcode/variation: M44+5*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX139CMH-D  
    		MQFP;44 pin;
    Dwg: 21-0826 (PDF)
    Use pkgcode/variation: M44-5*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX139CPL+  
    		PDIP;32 pin;
    Dwg: 21-0044 (PDF)
    Use pkgcode/variation: P40+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX139CPL  
    		PDIP;40 pin;
    Dwg: 21-0044 (PDF)
    Use pkgcode/variation: P40-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX139EPL  
    		PDIP;40 pin;
    Dwg: 21-0044 (PDF)
    Use pkgcode/variation: P40-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX139EPL+  
    		PDIP;32 pin;
    Dwg: 21-0044 (PDF)
    Use pkgcode/variation: P40+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX139CQH-D  
    		PLCC;44 pin;
    Dwg: 21-0049 (PDF)
    Use pkgcode/variation: Q44-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX139CQH+D  
    		PLCC;44 pin;
    Dwg: 21-0049 (PDF)
    Use pkgcode/variation: Q44+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX139EQH-D  
    		PLCC;44 pin;
    Dwg: 21-0049 (PDF)
    Use pkgcode/variation: Q44-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX139EQH+D  
    		PLCC;44 pin;
    Dwg: 21-0049 (PDF)
    Use pkgcode/variation: Q44+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX140 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX140CMH-TD  



    		0°C to +70°C See data sheet
    MAX140CQH-TD  



    		0°C to +70°C See data sheet
    MAX140CQH+TD  



    		0°C to +70°C See data sheet
    MAX140EQH+TD  



    		-40°C to +85°C See data sheet
    MAX140EQH-TD  



    		-40°C to +85°C See data sheet
    MAX140C/D  
    		DICE SALES;

    Use pkgcode/variation: DICE*
    		See data sheet
    MAX140CMH+D  
    		MQFP;44 pin;
    Dwg: 21-0826 (PDF)
    Use pkgcode/variation: M44+5*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX140CMH-D  
    		MQFP;44 pin;
    Dwg: 21-0826 (PDF)
    Use pkgcode/variation: M44-5*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX140CMH+TD  
    		MQFP;44 pin;
    Dwg: 21-0826 (PDF)
    Use pkgcode/variation: M44+5*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX140CPL  
    		PDIP;40 pin;
    Dwg: 21-0044 (PDF)
    Use pkgcode/variation: P40-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX140CPL+  
    		PDIP;32 pin;
    Dwg: 21-0044 (PDF)
    Use pkgcode/variation: P40+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX140EPL+  
    		PDIP;32 pin;
    Dwg: 21-0044 (PDF)
    Use pkgcode/variation: P40+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX140EPL  
    		PDIP;40 pin;
    Dwg: 21-0044 (PDF)
    Use pkgcode/variation: P40-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX140CQH-D  
    		PLCC;44 pin;
    Dwg: 21-0049 (PDF)
    Use pkgcode/variation: Q44-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX140CQH+D  
    		PLCC;44 pin;
    Dwg: 21-0049 (PDF)
    Use pkgcode/variation: Q44+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX140EQH+D  
    		PLCC;44 pin;
    Dwg: 21-0049 (PDF)
    Use pkgcode/variation: Q44+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX140EQH-D  
    		PLCC;44 pin;
    Dwg: 21-0049 (PDF)
    Use pkgcode/variation: Q44-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis

    Related Products
    MAX138, MAX139, MAX140 3 1/2 Digit ADC with Reference, Charge Pump, and Direct LED Drivers

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    Document Ref.: 19-0805; Rev 2; 1995-11-01
    This page last modified: 2004-01-17




             


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