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AD5254B1 Nonvolatile Memory Digital Potentiometers Electronic Component

Categories Circuit Board Chips
Brand Name: AD
Model Number: AD5254B1
Certification: Original
Place of Origin: Original
MOQ: 5 PCS
Price: 0.1USD
Payment Terms: T/T, Western Union,Paypal
Supply Ability: 10000PCS/DAY
Delivery Time: 1 day
Packaging Details: contact us for more details
FEATURES: Quad 64-position resolution
APPLICATIONS: Low resolution DAC replacement
GENERAL DESCRIPTION: digitally controlled potentiometers
TEMPERATURE: –40°C to +85°C
OHM: 100 kΩ
TYPE: IC
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AD5254B1 Nonvolatile Memory Digital Potentiometers Electronic Component

AD5254B1 Nonvolatile Memory Digital Potentiometers
FEATURES
AD5253: Quad 64-position resolution
AD5254: Quad 256-position resolution
1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ Nonvolatile memory stores wiper settings with write protection Power-on refreshed to EEMEM settings in 300 µs typ
EEMEM rewrite time = 540 µs typ Resistance tolerance stored in nonvolatile memory 12 extra bytes in EEMEM for user-defined information IC® compatible serial interface Direct read/write accesses of RDAC and EEMEM registers Predefined linear increment/decrement commands Predefined ±6 dB step change commands Synchronous or asynchronous quad channel update Wiper setting readback 4 MHz bandwidth—1 kΩ version Single supply 2.7 V to 5.5 V
Dual supply ±2.25 V to ±2.75 V 2 slave address decoding bits allow operation of 4 devices 100-year typical data retention, TA= 55°C Operating temperature: –40°C to +85°C
APPLICATIONS
Mechanical potentiometer replacement Low resolution DAC replacement RGB LED backlight control
White LED brightness adjustment RF base station power amp bias control Programmable gain and offset control
Programmable attenuators Programmable voltage-to-current conversion Programmable power supply
Programmable filters Sensor calibrations
GENERAL DESCRIPTION
The AD5253/AD5254 are quad channel,2C, nonvolatile memory, digitally controlled potentiometers with 64/256 positions, respectively. These devices perform the same electronic adjustment functions as mechanical potentiometers, trimmers, and variable resistors.
The AD5253/AD5254’s versatile programmability allows multiple modes of operation, including read/write accesses in the RDAC 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 as memory data for other components, look-up table,or system identification information.
ParameterSymbolConditions
Input Leakage Current (Other
than WP and A0)
IA0
VIN= 0 V or VDD
POWER SUPPLIES
Single-Supply Power Range
VDD
VSS= 0 V
DYNAMIC CHARACTERISTICS
Bandwidth –3 dB
BW
RAB= 1 kΩ


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