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Maxim > Products > [Digital Potentiometers]  [Voltage References]  [Power and Battery Management] 
DS4303, DS4303K
Electronically Programmable Voltage Reference

Nonvolatile Sample and Infinite-Hold Adjustable Voltage Reference for Automated Factory Calibration


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 392kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The DS4303 is a nonvolatile (NV) electronically programmable voltage reference. The reference voltage is programmed in-circuit during factory calibration/programming. Programming the reference voltage, VOUT, is as simple as applying the desired voltage on VIN and toggling the adjust pin (ADJ-bar) to lock the VOUT voltage level indefinitely, even if the device is power cycled. The DS4303 replaces current cumbersome factory adjustment arrangements with a low-cost solution that can be adjusted using automated techniques. In addition, the DS4303 has the ability to be readjusted after the unit has been fully assembled and tested. This results in a much more flexible manufacturing arrangement, lower inventory costs, and a quicker time-to-market.

DS4303K EVALUATION BOARD
To facilitate evaluation of the DS4303 in its tiny SOT23 package, it is available mounted on a small (16mm x 10mm) evaluation board. The board includes a 0.1µF decoupling capacitor on the supply input. The part number for the evaluation board is DS4303K and it available as a free sample.

Key Features   Applications/Uses
  		• Precise Electronically Adjustable Voltage Reference
  		• Enables Automated Factory Trimming of Devices Needing Voltage Adjustment
  		• Can be Adjusted to Within ±1mV
  		• Wide Adjustable Output Voltage Range Within 300mV of the Supply Rails
  		• Low Temperature Coefficient
  		• ±1mA of Output-Current Drive
  		• NV Memory Stores the Voltage Indefinitely
  		• Output Short-Circuit Protection
  		• Low Cost
  		• Low Power Consumption
  		• 2.4V to 3.6V Single-Supply Operation
  		• Small 5-Lead SOT23 Package

    		  
  		• Bias Adjusting
  		• Factory-Calibrated Equipment
  		• Offset Nulling
  		• Power Amplifiers
  		• Power-Supply Calibration
  		• Pressure Bridges
  		• Threshold Setting

    Key Specifications:  Voltage References
    Part Number VOUT
    (V)    		 Temp. Coeff.
    (ppm/°C)    		 Initial Accuracy
    (% max)    		 ISUPPLY
    (µA)    		 VSUPPLY
    (V)    		 VSUPPLY
    (V)    		 Noise 0.1Hz to 10Hz
    (µVpp)    		 Features Package/Pins Smallest Available Pckg.
    (mm2)    		 Oper. Temp.
    (°C)    		 Price
    max @ +25°C max min max typ max w/pins See Notes
    DS4303  Programmable 30 0.03 1600 2.4 3.6 200 Series
    SOT/5
    		 9 -40 to +85 $0.39 @1k
    See All Voltage References (162)

    Diagram
    DS4303, DS4303K: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 3617: Using the DS4303 to Bias LDMOS RF Power Amps - DS4303
  		• Application Note 3748: How to Create a Precision Current Source Using a DS4303 or DS4305 - DS4303
  		• Application Note 4101: Differentiating Digital Potentiometer Features - DS4303

    Design Guides
  		• Digital Potentiometers (PDF)

    Reliability Reports
  		• Reliability Report: DS4303.pdf
  		• 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: 1-3 of 3

    DS4303 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    DS4303R/T&R    
    		Active SOT;5 pin;9 mm²
    Outline Drawing: 21-0057 (PDF)
    Land Pattern: 90-0174 (PDF)
    Use pkgcode/variation: U5-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS4303R+T&R    
    		Active SOT;5 pin;9 mm²
    Outline Drawing: 21-0057 (PDF)
    Land Pattern: 90-0174 (PDF)
    Use pkgcode/variation: U5+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS4303K Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    DS4303K    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet

    More Information
  		• New Product Press Release 2005-06-30 

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    •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

    		 Data Sheet 
     Application Notes 
     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
     Evaluation Kits 

    		 Price and Availability 
     Samples 
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    2006-08-03
    This page last modified: 2006-08-15


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