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DS4303

PRODUCTION

Electronically Programmable Voltage Reference

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

Data Sheet (Rev. 1) Product Selection Table
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Overview

  • 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

    • 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.

    Applications

    • Bias Adjusting
    • Factory-Calibrated Equipment
    • Offset Nulling
    • Power Amplifiers
    • Power-Supply Calibration
    • Pressure Bridges
    • Threshold Setting
    DS4303
    Electronically Programmable Voltage Reference
    DS4303, DS4303K: Typical Operating Circuit
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    Documentation

    Data Sheet 1

    Reliability Data 1

    Design Note 3

    Technical Articles 5

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