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DS4303

DS4303, DS4303K

Electronically Programmable Voltage Reference

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

Data Sheet
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Overview

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.

DS4303, DS4303K: Typical Operating Circuit DS4303, DS4303K: Typical Operating Circuit Enlarge+

Key Features

  • 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

    • Applications/Uses

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

    Parametric Specs

    Part NumberVOUT
    (V)    		Temp. Coeff.
    (ppm/°C)    		Initial Accuracy
    (% max)    		Calibration MethodISUPPLY
    (µA)    		VSUPPLY
    (V)    		VSUPPLY
    (V)    		Noise 0.1Hz to 10Hz
    (µVpp)    		Oper. Temp.
    (°C)    		Package/PinsBudgetary
    Price
    max@ +25°CmaxminmaxtypSee Notes
    DS4303 Programmable (within 300mV of Rails)300.03E2CRef.16002.43.6200-40 to +85
    SOT23/5
    		$1.87 @1k
    See All Voltage References (170)
    Pricing 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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    Design Resources

    Technical Documents

    Tutorial 5066 When Is Calibration Important?
    Tutorial 4993 Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface
    Tutorial 4704 Introduction to Electronic Calibration and Methods for Correcting Manufacturing Tolerances in Industrial Equipment Designs
    Tutorial 4703 Introduction to Electronic Calibration and Methods for Correcting Manufacturing Tolerances in Medical Equipment Designs
    App Note 4101 Differentiating Digital Potentiometer Features
    Tutorial 3748 How to Create a Precision Current Source Using a DS4303 or DS4305
    App Note 3617 Using the DS4303 to Bias LDMOS RF Power Amps
    Tutorial 719 Understanding Voltage-Reference Topologies and Specifications

    Quality and Environmental Data

    Product Reliability Reports: DS4303.pdf 
    Request Reliability Report for: DS4303K 
    Lead-Free Package Tin (Sn) Whisker Reports

    CAD Symbols and Footprints

  • DS4303R+T&R
  • DS4303R-U
  • DS4303R-U+
  • DS4303R/T&R
    •

    Quality And Environmental

    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

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    Related Resources

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    • Ultra-Low 5ppm/°C (Max) Temperature Coefficient

    Technical Docs