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AD5114BCPZ10-1-RL7 Fiches technique(PDF) 1 Page - Analog Devices

No de pièce AD5114BCPZ10-1-RL7
Description  Single-Channel, 128-/64-/32-Position, I2C, 짹8% Resistor Tolerance, Nonvolatile Digital Potentiometer
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD5114BCPZ10-1-RL7 Fiches technique(HTML) 1 Page - Analog Devices

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Single-Channel, 128-/64-/32-Position, I2C,
±8%
Resistor Tolerance, Nonvolatile Digital Potentiometer
Data Sheet
AD5110/AD5112/AD5114
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
Resistor tolerance stored in EEPROM (0.1% accuracy)
Rheostat mode temperature coefficient: 35 ppm/°C
Potentiometer mode temperature coefficient: 5 ppm/°C
2.3 V to 5.5 V single-supply operation
1.8 V to 5.5 V logic supply operation
Power-on EEPROM refresh time < 50 μs
I2C-compatible interface
Wiper setting and EEPROM readback
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
POWER-ON
RESET
VLOGIC
VDD
DATA
DATA
SDA
A
W
B
SCL
EEPROM
AD5110/AD5112/AD5114
RDAC
REGISTER
GND
I2C
SERIAL
INTERFACE
Figure 1.
GENERAL DESCRIPTION
The AD5110/AD5112/AD5114 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.
The wiper settings are controllable through an I2C-compatible
digital interface that is also used to readback the wiper register
and EEPROM content. Resistor tolerance is stored within
EEPROM, providing an end-to-end tolerance accuracy of 0.1%.
The AD5110/AD5112/AD5114 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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