AD5242(RevB) 查看數據表（PDF） - Analog Devices
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AD5242 Datasheet PDF : 16 Pages
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AD5241/AD5242–SPECIFICATIONS
10 k⍀, 100 k⍀, 1 M⍀ VERSION (VDD = 3 V ؎ 10% or 5 V ؎ 10%, VA = +VDD, VB = 0 V, –40؇C < TA < +105؇C, unless
otherwise noted.)
Parameter
Symbol Conditions
Min Typ1 Max
Unit
DC CHARACTERISTICS, RHEOSTAT MODE (Specifications apply to all VRs.)
Resistor Differential Nonlinearity2 R-DNL
Resistor Integral Nonlinearity2
R-INL
RWB, VA = No Connect
RWB, VA = No Connect
Nominal Resistor Tolerance
DR
TA = 25°C, RAB = 10 kΩ
DR
TA = 25°C, RAB = 100 kΩ/1 MΩ
Resistance Temperature Coefficient RAB/DT
VAB = VDD, Wiper = No Connect
Wiper Resistance
RW
IW = VDD /R, VDD = 3 V or 5 V
–1 ± 0.4 +1
–2 ± 0.5 +2
–30
+30
–30
+50
30
60 120
LSB
LSB
%
%
ppm/°C
Ω
DC CHARACTERISTICS, POTENTIOMETER DIVIDER MODE (Specifications apply to all VRs.)
Resolution
Differential Nonlinearity3
Integral Nonlinearity3
N
DNL
INL
8
–1 ± 0.4 +1
–2 ± 0.5 +2
Voltage Divider Temperature
Coefficient
Full-Scale Error
Zero-Scale Error
DVW/DT
VWFSE
VWZSE
Code = 80H
Code = FFH
Code = 00H
5
–1 –0.5 0
0 0.5 1
Bits
LSB
LSB
ppm/°C
LSB
LSB
RESISTOR TERMINALS
Voltage Range4
Capacitance5 A, B
Capacitance5 W
Common-Mode Leakage
VA, B, W
VSS
VDD
V
CA, B
f = 1 MHz, Measured to GND, Code = 80H
45
pF
CW
f = 1 MHz, Measured to GND, Code = 80H
60
pF
ICM
VA = VB = VW
1
nA
DIGITAL INPUTS
Input Logic High (SDA and SCL) VIH
Input Logic Low (SDA and SCL) VIL
Input Logic High (AD0 and AD1) VIH
Input Logic Low (AD0 and AD1) VIL
Input Logic High
VIH
Input Logic Low
VIL
Input Current
IIL
Input Capacitance5
CIL
VDD = 5 V
VDD = 5 V
VDD = 3 V
VDD = 3 V
VIN = 0 V or 5 V
0.7 VDD
–0.5
2.4
0
2.1
0
3
VDD + 0.5 V
+0.3 VDD V
VDD
V
0.8
V
VDD
V
0.6
V
1
µA
pF
DIGITAL OUTPUT
VOL
Output Logic Low (SDA)
VOL
Output Logic Low (O1 and O2)
VOL
Output Logic High (O1 and O2)
VOH
Three-State Leakage Current (SDA) IOZ
Output Capacitance5
COZ
IOL = 3 mA
IOL = 6 mA
ISINK = 1.6 mA
ISOURCE = 40 µA
VIN = 0 V or 5 V
0.4
V
0.6
V
0.4
V
4
V
±1
µA
38
pF
POWER SUPPLIES
Power Single-Supply Range
Power Dual-Supply Range
Positive Supply Current
Negative Supply Current
Power Dissipation6
Power Supply Sensitivity
VDD RANGE
VDD/SS RANGE
IDD
ISS
PDISS
PSS
VSS = 0 V
± 2.3
VIH = 5 V or VIL = 0 V
VSS = –2.5 V, VDD = +2.5 V
VIH = 5 V or VIL = 0 V, VDD = 5 V
2.7
5.5
V
± 2.7
V
0.1 50
µA
+0.1 –50
µA
0.5 250
µW
–0.01 +0.002 +0.01 %/%
DYNAMIC CHARACTERISTICS5, 7, 8
Bandwidth –3 dB
Total Harmonic Distortion
VW Settling Time
Resistor Noise Voltage
BW_10 kΩ
BW_100 kΩ
BW_1 MΩ
THDW
tS
eN_WB
RAB = 10 kΩ, Code = 80H
RAB = 100 kΩ, Code = 80H
RAB = 1 MΩ, Code = 80H
VA = 1 V rms + 2 V dc,
VB = 2 V dc, f = 1 kHz
VA = VDD, VB = 0 V, ± 1 LSB Error Band,
RAB = 10 kΩ
RWB = 5 kΩ, f = 1 kHz
650
69
6
0.005
2
14
kHz
kHz
kHz
%
µs
nV√Hz
–2–
REV. B
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