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AD5252 Datasheet(PDF) 5 Page - Analog Devices

Part No. AD5252
Description  Dual 64-and 256-Position I2C Nonvolatile Memory Digital Potentiometers
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5252 Datasheet(HTML) 5 Page - Analog Devices

 
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AD5251/AD5252
Rev. 0 | Page 5 of 28
10 kΩ, 50 kΩ, 100 kΩ Versions. VDD = +3 V ± 10% or + 5 V ± 10%. VSS = 0 V or VDD/VSS = ± 2.5 V ± 10%. VA = +VDD, VB = 0 V,
–40°C < TA < +85°C, unless otherwise noted.
Table 2.
Parameter
Symbol
Conditions
Min
Typ1
Max
Unit
DC CHARACTERISTICS
RHEOSTAT MODE
Resolution
N
AD5251/AD5252
6/8
Bits
Resistor Differential NL2
R-DNL
RWB, RWA = NC, AD5251
−0.75
±0.1
+0.75
LSB
RWB, RWA = NC, AD5252
−1
±0.25
+1
LSB
Resistor Nonlinearity2
R-INL
RWB, RWA = NC, AD5251
−0.75
±0.25
+0.75
LSB
RWB, RWA = NC, AD5252
−2.5
±1
+2.5
LSB
Nominal Resistor Tolerance
∆RAB/RAB
TA = 25°C
−20
+20
%
Resistance Temperature
Coefficent
(∆RAB/RAB) × 106/∆T
650
ppm/°C
Wiper Resistance
RW
IW = 1 V/R, VDD = 5 V
75
130
IW = 1 V/R, VDD = 3 V
200
300
Channel Resistance Matching
∆RAB1/∆RAB2
RAB = 10 kΩ, 50 kΩ
0.15
%
RAB = 100 kΩ
0.05
%
DC CHARACTERISTICS
POTENTIOMETER DIVIDER
MODE
Differential Nonlinearity3
DNL
AD5251
−0.5
±0.1
+0.5
LSB
AD5252
−1
±0.3
+1
LSB
Integral Nonlinearity
3
INL
AD5251
−0.5
±0.15
+0.5
LSB
AD5252
−1.5
±0.5
+1.5
LSB
Voltage Divider
Temperature Coefficent
(∆VW/VW) × 106/∆T
Code = half scale
15
ppm/°C
Full-Scale Error
VWFSE
Code = full scale, AD5251
−1
−0.3
0
LSB
Code = full scale, AD5252
−3
−1
0
LSB
Zero-Scale Error
VWZSE
Code = zero scale, AD5251
0
0.3
1
LSB
Code = zero scale, AD5252
0
1.2
3
LSB
RESISTOR TERMINALS
Voltage Range4
VA, VB, VW
VSS
VDD
V
Capacitance5 Ax, Bx
CA, CB
f = 1 kHz, measured to GND,
Code = half scale
85
pF
Capacitance5 Wx
CW
f = 1 kHz, measured to GND,
Code = half scale
95
pF
Common-Mode Leakage
Current
ICM
VA = VB = VDD/2
0.01
1
µA
DIGITAL INPUTS and OUTPUTS
Input Logic High
VIH
VDD =5 V, VSS = 0 V
2.4
V
VDD/VSS = +2.7 V/0 V or VDD/VSS = ±2.5 V
2.1
V
Input Logic Low
VIL
VDD = 5 V, VSS = 0 V
0.8
V
VDD/VSS = +2.7 V/0 V or VDD/VSS =±2.5 V
0.6
V
Output Logic High (SDA)
VOH
RPULL-UP = 2.2 kΩ to VDD = 5 V, VSS = 0 V
4.9
V
Output Logic Low (SDA)
VOL
RPULL-UP = 2.2 kΩ to VDD = 5 V, VSS = 0 V
0.4
V
Leakage Current
IWP
WP = VDD
5
µA
A0 Leakage Current
IA0
A0 = GND
3
µA
Input Leakage Current
(Other than WP and A0)
II
VIN = 0 V or VDD
±1
µA
Input Capacitance5
CI
5
pF
POWER SUPPLIES
Single-Supply Power Range
VDD
VSS = 0 V
2.7
5.5
V


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