參數(shù)資料
型號: AD5114BCPZ80-500R7
廠商: Analog Devices Inc
文件頁數(shù): 1/28頁
文件大?。?/td> 0K
描述: IC DGTL POT 32POS 80K 8LFCSP
標準包裝: 1
接片: 32
電阻(歐姆): 80k
電路數(shù): 1
溫度系數(shù): 標準值 35 ppm/°C
存儲器類型: 非易失
接口: I²C,2 線串口
電源電壓: 1.8 V ~ 5 V,2.3 V ~ 5.5V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 8-UFDFN 裸露焊盤,CSP
供應商設備封裝: 8-LFCSP-UD(2x2)
包裝: 標準包裝
其它名稱: AD5114BCPZ80-500R7DKR
Single-Channel, 128-/64-/32-Position, I2C,
±8%
Resistor Tolerance, Nonvolatile Digital Potentiometer
Data Sheet
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
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
2011–2012 Analog Devices, Inc. All rights reserved.
FEATURES
Nominal resistor tolerance error: ±8% maximum
Wiper current: ±6 mA
Rheostat mode temperature coefficient: 35 ppm/°C
Low power consumption: 2.5 A 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 analog supply operation
1.8 V to 5.5 V logic supply 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
POWER-ON
RESET
VLOGIC
VDD
DATA
SDA
A
W
B
SCL
EEPROM
AD5110/AD5112/AD5114
RDAC
REGISTER
GND
I2C
SERIAL
INTERFACE
09582-
001
Figure 1.
Table 1. ±8% Resistance Tolerance Family
Model
Resistance (kΩ)
Position
Interface
10, 80
128
I2C
10, 80
128
Up/down
5, 10, 80
64
I2C
5, 10, 80
64
Up/down
5, 10, 80
64
Push-button
10, 80
32
I2C
10, 80
32
Up/down
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 ,
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.
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