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AD5253 Datasheet(PDF) 5 Page - Analog Devices

Part No. AD5253
Description  Quad 64-/256-Position I2C Nonvolatile Memory Digital Potentiometers
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5253 Datasheet(HTML) 5 Page - Analog Devices

 
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AD5253/AD5254
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
AD5253/AD5254
6/8
Bits
Resistor Differential
Nonlinearity2
R-DNL
RWB, RWA = NC, AD5253
−0.75
±0.1
+0.75
LSB
RWB, RWA = NC, AD5254
−1
±0.25
+1
LSB
Resistor Nonlinearity2
R-INL
RWB, RWA = NC, AD5253
−0.75
±0.25
+0.75
LSB
RWB, RWA = NC, AD5254
−2.5
±1
+2.5
LSB
Nominal Resistor Tolerance
∆RAB/RAB
TA = 25°C
−20
+20
%
Resistance Temperature
Coefficient
(∆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
AD5253
−0.5
±0.1
+0.5
LSB
AD5254
−1
±0.3
+1
LSB
Integral Nonlinearity3
INL
AD5253
−0.5
±0.15
+0.5
LSB
AD5254
−1.5
±0.5
+1.5
LSB
Voltage Divider
Temperature Coefficient
(∆VW/VW) × 106/∆T
Code = Half scale
15
ppm/°C
Full-Scale Error
VWFSE
Code = Full scale, AD5253
−1
−0.3
0
LSB
Code = Full scale, AD5254
−3
−1
0
LSB
Zero-Scale Error
VWZSE
Code = Zero scale, AD5253
0
0.3
1
LSB
Code = Zero scale, AD5254
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
Current6
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
WP 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
Dual-Supply Power Range
VDD/VSS
±2.25
±2.75
V
Positive Supply Current
IDD
VIH = VDD or VIL = GND
5
15
µA


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