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AD5114 Datasheet(PDF) 1 Page - Analog Devices

Part No. AD5114
Description  Single-Channel, 128-/64-/32-Position, Up/Down, ±8% Resistor Tolerance, Nonvolatile Digital Potentiometer
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5114 Datasheet(HTML) 1 Page - Analog Devices

 
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Single-Channel, 128-/64-/32-Position, Up/Down,
±8%
Resistor Tolerance, Nonvolatile Digital Potentiometer
Data Sheet
AD5111/AD5113/AD5115
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2011 Analog Devices, Inc. All rights reserved.
FEATURES
Single-channel, 128-/64-/32-position resolution
5 kΩ, 10 kΩ, 80 kΩ nominal resistance
Maximum ±8% nominal resistor tolerance error
Low wiper resistance
±6 mA maximum wiper current density
Rheostat mode temperature coefficient: 35 ppm/°C
Potentiometer mode temperature coefficient: 5 ppm/°C
2.3 V to 5.5 V single-supply operation
Power-on EEPROM refresh time < 50 μs
Simple up/down manual or digital configurable control
Chip select enable multiple device operation
50-year typical data retention at 125°C
1 million write cycles
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
GND
RDAC
REGISTER
UP/DOWN
CONTROL
LOGIC
POWER-ON
RESET
VDD
U/D
CLK
CS
EEPROM
DATA
DATA
A
W
B
EN
AD5111/
AD5113/
AD5115
Figure 1.
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 speed digital control with clock rates up to 50 MHz.
The AD5111/AD5113/AD5115 are available in a 2 mm × 2 mm
LFCSP package. The parts are guaranteed to operate over the
extended industrial temperature range of −40°C to +125°C.
Table 1. ±8% Resistance Tolerance Family
Model
Resistance (kΩ)
Position
Interface
AD5110
10, 80
128
I2C
AD5111
10, 80
128
Up/down
AD5112
5, 10, 80
64
I2C
AD5113
5, 10, 80
64
Up/down
AD5116
5, 10, 80
64
Push-button
AD5114
10, 80
32
I2C
AD5115
10, 80
32
Up/down


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