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AD5115

Analog Devices
Part Number AD5115
Manufacturer Analog Devices
Description Single-Channel Nonvolatile Digital Potentiometer
Published Nov 12, 2011
Detailed Description Data Sheet Single-Channel, 128-/64-/32-Position, Up/Down, ±8% Resistor Tolerance, Nonvolatile Digital Potentiometer AD5...
Datasheet PDF File AD5115 PDF File

AD5115
AD5115

Overview
Data Sheet Single-Channel, 128-/64-/32-Position, Up/Down, ±8% Resistor Tolerance, Nonvolatile Digital Potentiometer AD5111/AD5113/AD5115 FEATURES Nominal resistor tolerance error: ±8% maximum Wiper current: ±6 mA Rheostat mode temperature coefficient: 35 ppm/°C Low power consumption: 2.
5 µA max @ 2.
7 V and 125°C Wide bandwidth: 4 MHz (5 kΩ option) Power-on EEPROM refresh time < 50 μs 50-year typical data retention at 125°C 1 million write cycles 2.
3 V to 5.
5 V supply operation Chip select enable multiple device operation Wide operating temperature: −40°C to +125°C Thin, 2 mm × 2 mm × 0.
55 mm 8-lead LFCSP package APPLICATIONS Mechanical potentiometer replacement Portable electronics level adjustment Audio volume control Low resolution DAC LCD panel brightness and contrast control Programmable voltage to current conversion Programmable filters, delays, time constants Feedback resistor programmable power supply Sensor calibration FUNCTIONAL BLOCK DIAGRAM VDD POWER-ON RESET AD5111/ AD5113/ AD5115 CLK CS U/D EN UP/DOWN CONTROL LOGIC DATA EEPROM DATA RDAC REGISTER A W B GND Figure 1.
09654-001 Table 1.
±8% Resistance Tolerance Family Model Resistance (kΩ) Position AD5110 10, 80 128 AD5111 10, 80 128 AD5112 5, 10, 80 64 AD5113 5, 10, 80 64 AD5116 5, 10, 80 64 AD5114 10, 80 32 AD5115 10, 80 32 Interface I2C Up/down I2C Up/down Push-button I2C Up/down GENERAL DESCRIPTION The AD5111/AD5113/AD5115 provide a nonvolatile solution for 128-/64-/32-position adjustment applications, offering guaranteed low resistor tolerance errors of ±8% and up to ±6 mA current density in the A, B, and W pins.
The low resistor tolerance, low nominal temperature coefficient, and high bandwidth simplify open-loop applications, as well as tolerance matching applications.
The new low wiper resistance feature minimizes the wiper resistance in the extremes of the resistor array to only 45 Ω, typical.
A simple 3-wire up/down interface allows manual switching or high spe...


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