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Manufacturer / Brand: AD
Details: Nonvolatile Memory, Dual 1024-Position Digital Resistor
Series: ADN2850
Quantity Available: Over 24650 pieces

Datasheet for ADN2850:

ADN2850 datasheet
Price for ADN2850
Product Parameters
  • Manufacturer Part Number : ADN2850
  • Manufacturer : AD
  • Description : Nonvolatile Memory, Dual 1024-Position Digital Resistor
  • Series : ADN2850
  • Reference Price : USD 3.536
  • Our Price : We have a better price, contact us by email
  • Product Type : Digital Potentiometers (DigiPOT)
  • Function : -
  • Current Suggest : Production
  • Status : Production
  • RoHS Status: -
  • Voltage: -
  • Feature: -
  • Package Case: -
  • Temperature Range: -
  • Packing: Reel/Tray/Tube
  • Standard Packing Quantity: -
  • Country of Origin: -
  • Other Part Number : ADN2850
  • Shipping methods : DHL FEDEX UPS TNT
  • Delivery Time : Ship within 1 day.
  • Manufacturer Production time : 6-8 weeks (Normally have stocks)
  • Weight : 0.001KG

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Features and Benefits of ADN2850
Product Detailed Description for ADN2850

The ADN2850 is a dual-channel, nonvolatile memory, digitallycontrolled resistors with 1024-step resolution, offeringguaranteed maximum low resistor tolerance error of ±8%. Thedevice performs the same electronic adjustment function as amechanical rheostat with enhanced resolution, solid statereliability, and superior low temperature coefficientperformance. The versatile programming of the ADN2850 viaan SPI®-compatible serial interface allows 16 modes ofoperation and adjustment including scratchpad programming,memory storing and restoring, increment/decrement, ±6 dB/steplog taper adjustment, wiper setting readback, and extra EEMEM for user-defined information such as memory data for other components, look-up table, or system identificationinformation.

In the scratchpad programming mode, a specific setting canbe programmed directly to the RDAC register, which sets theresistance between Terminal W and Terminal B. This setting canbe stored into the EEMEM and is restored automatically to theRDAC register during system power-on.

The EEMEM content can be restored dynamically or throughexternal PR strobing, and a WP function protects EEMEM contents. To simplify the programming, the independent orsimultaneous linear-step increment or decrement commandscan be used to move the RDAC wiper up or down, one step at atime. For logarithmic ±6 dB changes in the wiper setting, theleft or right bit shift command can be used to double or halve theRDAC wiper setting.

The ADN2850 patterned resistance tolerance is stored in theEEMEM. The actual full scale resistance can, therefore, beknown by the host processor in readback mode. The host canexecute the appropriate resistance step through a softwareroutine that simplifies open-loop applications as well asprecision calibration and tolerance matching applications.

The ADN2850 is available in the 5 mm × 5 mm 16-lead framechip scale LFCSP and thin, 16-lead TSSOP package. The part isguaranteed to operate over the extended industrial temperaturerange of −40°C to +85°C.

Applications

  • SONET, SDH, ATM, Gigabit Ethernet, DWDM laser diode driver, optical supervisory systems
  • Mechanical rheostat replacement
  • Instrumentation gain adjustment
  • Programmable filters, delays, time constants
  • Sensor calibration
Lifecycle information of ADN2850

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

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