Datasheet for AD5251BRUZ50:
- Manufacturer Part Number : AD5251BRUZ50
- Manufacturer : AD
- Description : I2C, Nonvolatile Memory, Dual 64-Position Digital Potentiometer IC
- Series : AD5251
- Reference Price : USD 1.976
- Our Price : We have a better price, contact us by email
- Product Type : Digital Potentiometers (DigiPOT)
- Function : -
- Current Suggest : Production
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : 14-Lead TSSOP
- Pins : 14
- MFG Package Case : RU-14
- Part Type : OTH
- Standard Packing Type : Tube
- Standard Packing Quantity : 96
- Working Temperature : -40 to 105C
- Other Part Number : AD5251BRUZ50
- 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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The AD5251 is a dual-channel, I2C, nonvolatile memory,digitally controlled potentiometer with 64 positions. These devices perform the same electronic adjustmentfunctions as mechanical potentiometers, trimmers, andvariable resistors. The parts’ versatile programmability allowsmultiple modes of operation, including read/write access in theRDAC and EEMEM registers, increment/decrement of resistance,resistance changes in ±6 dB scales, wiper setting readback,and extra EEMEM for storing user-defined information, such asmemory data for other components, look-up table, or systemidentification information.
The AD5251/AD5252 allow the host I2C controllers to writeany of the 64-/256-step wiper settings in the RDAC registersand store them in the EEMEM. Once the settings are stored,they are restored automatically to the RDAC registers at systempower-on; the settings can also be restored dynamically.
The AD5251/AD5252 provide additional increment,decrement, +6 dB step change, and –6 dB step change insynchronous or asynchronous channel update mode. Theincrement and decrement functions allow stepwise linearadjustments, with a ± 6 dB step change equivalent to doublingor halving the RDAC wiper setting. These functions are usefulfor steep-slope, nonlinear adjustments, such as white LEDbrightness and audio volume control.
The AD5251/AD5252 have a patented resistance-tolerancestoring function that allows the user to access the EEMEM andobtain the absolute end-to-end resistance values of the RDACsfor precision applications.
The AD5251/AD5252 are available in TSSOP-14 packages.AD5251 has only 50 kΩ resistance options and AD5252 isavailable in 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ options. All partsare guaranteed to operate over the –40°C to +105°C extendedindustrial temperature range.
Applications
- Mechanical potentiometer replacement
- General-purpose DAC replacement
- LCD panel VCOM adjustment
- White LED brightness adjustment
- RF base station power amp bias control
- Programmable gain and offset control
- Programmable voltage-to-current conversion
- Programmable power supply
- Sensor calibrations
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.
