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AD5231BRU10 Datenblatt(PDF) 3 Page - Analog Devices

Teilenummer AD5231BRU10
Bauteilbeschribung  Nonvolatile Memory, 1024-Position Digital Potentiometer
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Hersteller  AD [Analog Devices]
Direct Link  http://www.analog.com
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Data Sheet
AD5231
Rev. D | Page 3 of 28
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS—10 kΩ, 50 kΩ, 100 kΩ VERSIONS
VDD = 3 V ± 10% or 5 V ± 10%, VSS = 0 V, VA = VDD, VB = 0 V, −40°C < TA < +85°C, unless otherwise noted.
Table 1.
Parameter
Symbol
Conditions
Min
Typ1
Max
Unit
DC CHARACTERISTICS—
RHEOSTAT MODE
Resistor Differential Nonlinearity2
R-DNL
RWB, VA = NC, monotonic
−1
±1/2
+1.8
LSB
Resistor Integral Nonlinearity2
R-INL
RWB,VA = NC
−0.2
+0.2
LSB
Nominal Resistor Tolerance
ΔRAB/RAB
D = 0x3FF
−40
+20
%
Resistance Temperature Coefficient
(ΔRWB/RWB)/ΔT × 106
600
ppm/°C
Wiper Resistance
RW
IW = 100 µA, VDD = 5.5 V,
code = half scale
15
100
IW = 100 µA, VDD = 3 V,
code = half scale
50
DC CHARACTERISTICS—
POTENTIOMETER DIVIDER MODE
Resolution
N
10
Bits
Differential Nonlinearity3
DNL
Monotonic, TA = 25°C
−1
±1/2
+1
LSB
Monotonic, TA = −40°C or +85°C
−1
+1.25
LSB
Integral Nonlinearity3
INL
−0.4
+0.4
LSB
Voltage Divider Temperature
Coefficient
(ΔVW/VW)/ΔT × 106
Code = half scale
15
ppm/°C
Full-Scale Error
VWFSE
Code = full scale
−3
0
% FS
Zero-Scale Error
VWZSE
Code = zero scale
0
1.5
% FS
RESISTOR TERMINALS
Terminal Voltage Range4
VA, B,W
VSS
VDD
V
Capacitance A, B5
CA, B
f = 1 MHz, measured to GND,
code = half-scale
50
pF
Capacitance W5
CW
f = 1 MHz, measured to GND,
code = half-scale
50
pF
Common-Mode Leakage Current5, 6
ICM
VW = VDD/2
0.01
1
µA
DIGITAL INPUTS AND OUTPUTS
Input Logic High
VIH
With respect to GND, VDD = 5 V
2.4
V
Input Logic Low
VIL
With respect to GND, VDD = 5 V
0.8
V
Input Logic High
VIH
With respect to GND, VDD = 3 V
2.1
V
Input Logic Low
VIL
With respect to GND, VDD = 3 V
0.6
V
Input Logic High
VIH
With respect to GND, VDD = +2.5 V,
VSS = −2.5 V
2.0
V
Input Logic Low
VIL
With respect to GND, VDD = +2.5 V,
VSS = −2.5 V
0.5
V
Output Logic High (SDO, RDY)
VOH
RPULL-UP = 2.2 kΩ to 5 V
(see Figure 26)
4.9
V
Output Logic Low
VOL
IOL = 1.6 mA, VLOGIC = 5 V
(see Figure 26)
0.4
V
Input Current
IIL
VIN = 0 V or VDD
±2.5
µA
Input Capacitance5
CIL
4
pF
Output Current5
IO1, IO2
VDD = 5 V, VSS = 0 V, TA = 25°C
50
mA
VDD = 2.5 V, VSS = 0 V, TA = 25°C
7
mA


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