AD5252 データシートの表示（PDF） - Analog Devices
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AD5252 Datasheet PDF : 28 Pages
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Data Sheet
AD5251/AD5252
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 < +105°C, unless otherwise noted.
Table 2.
Parameter
Symbol
Conditions
Min Typ1
Max Unit
DC CHARACTERISTICS—
RHEOSTAT MODE
Resolution
N
AD5251
6
Bits
Resistor Differential Nonlinearity2
Resistor Nonlinearity2
Nominal Resistor Tolerance
Resistance Temperature
Coefficient
R-DNL
R-INL
ΔRAB/RAB
(ΔRAB/RAB) × 106/ΔT
AD5252
RWB, RWA = NC, AD5251
RWB, RWA = NC, AD5252
RWB, RWA = NC, AD5251
RWB, RWA = NC, AD5252
TA = 25°C
−0.75
−1.00
−0.75
−2.5
−20
±0.10
±0.25
±0.25
±1.0
650
8
+0.75
+1.00
+0.75
+2.5
+20
Bits
LSB
LSB
LSB
LSB
%
ppm/°C
Wiper Resistance
RW
Channel-Resistance Matching ΔRAB1/ΔRAB2
DC CHARACTERISTICS—
POTENTIOMETER DIVIDER MODE
Differential Nonlinearity3
DNL
IW = 1 V/R, VDD = 5 V
IW = 1 V/R, VDD = 3 V
RAB = 10 kΩ, 50 kΩ
RAB = 100 kΩ
AD5251
75
200
0.15
0.05
−0.5 ±0.1
130 Ω
300 Ω
%
%
+0.5 LSB
Integral Nonlinearity3
INL
AD5252
AD5251
−1.0 ±0.3
−0.50 ±0.15
+1.0 LSB
+0.50 LSB
Voltage Divider
Temperature Coefficient
AD5252
(ΔVW/VW) × 106/ΔT Code = half scale
−1.5 ±0.5
15
+1.5 LSB
ppm/°C
Full-Scale Error
VWFSE
Code = full scale, AD5251
Code = full scale, AD5252
−1.0 −0.3
0
LSB
−3
−1
0
LSB
Zero-Scale Error
VWZSE
Code = zero scale, AD5251
Code = zero scale, AD5252
0
0.3
0
1.2
1.0
LSB
3.0
LSB
RESISTOR TERMINALS
Voltage Range4
Capacitance5 A, B
Capacitance5 W
VA, VB, VW
CA, CB
CW
f = 1 kHz, measured to GND,
code = half scale
f = 1 kHz, measured to GND,
code = half scale
VSS
85
95
VDD
V
pF
pF
Common-Mode Leakage Current ICM
DIGITAL INPUTS AND OUTPUTS
VA = VB = VDD/2
0.01
1.00 µA
Input Logic High
VIH
Input Logic Low
VIL
Output Logic High (SDA)
VOH
Output Logic Low (SDA)
VOL
WP Leakage Current
IWP
A0 Leakage Current
IA0
Input Leakage Current
II
(Other than WP and A0)
VDD = 5 V, VSS = 0 V
2.4
VDD/VSS = +2.7 V/0 V or VDD/VSS = ±2.5 V 2.1
VDD = 5 V, VSS = 0 V
VDD/VSS = +2.7 V/0 V or VDD/VSS = ±2.5 V
RPULL-UP = 2.2 kΩ to VDD = 5 V, VSS = 0 V 4.9
RPULL-UP = 2.2 kΩ to VDD = 5 V, VSS = 0 V
WP = VDD
A0 = GND
VIN = 0 V or VDD
V
V
0.8
V
0.6
V
V
0.4
V
8
µA
3
µA
±1
µA
Input Capacitance5
CI
5
pF
Rev. D | Page 5 of 28
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