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参数资料
| 型号： | AD8402ARU100-REEL |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 数字电位计 |
| 英文描述： | DUAL 100K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO14 |
| 封装： | 1.10 MM, MO-153AB-1, TSSOP-14 |
| 文件页数： | 29/32页 |
| 文件大小： | 603K |
| 代理商： | AD8402ARU100-REEL |
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AD8400/AD8402/AD8403
Rev. E | Page 6 of 32
ELECTRICAL CHARACTERISTICS—50 KΩ AND 100 KΩ VERSIONS
VDD = 3 V ± 10% or 5 V ± 10%, VA = VDD, VB = 0 V, 40°C ≤ TA ≤ +125°C, unless otherwise noted.
Table 2.
Parameter
Symbol
Conditions
Min
Typ1
Max
Unit
DC CHARACTERISTICS RHEOSTAT MODE (Specifications Apply to All VRs)
Resistor Differential NL2
R-DNL
RWB, VA = No Connect
1
±1/4
+1
LSB
Resistor Nonlinearity2
R-INL
RWB, VA = No Connect
2
±1/2
+2
LSB
Nominal Resistance3
RAB
TA = 25°C, Model: AD840XYY50
35
50
65
kΩ
RAB
TA = 25°C, Model: AD840XYY100
70
100
130
kΩ
Resistance Tempco
ΔRAB/ΔT
VAB = VDD, Wiper = No Connect
500
ppm/°C
Wiper Resistance
RW
VDD = 5V, IW = VDD/RAB
50
100
Ω
RW
VDD = 3V, IW = VDD/RAB
200
Ω
Nominal Resistance Match
ΔR/RAB
CH 1 to CH 2, CH 3, or CH 4, VAB = VDD, TA = 25°C
0.2
1
%
DC CHARACTERISTICS POTENTIOMETER DIVIDER (Specifications Apply to All VRs)
Resolution
N
8
Bits
Integral Nonlinearity4
INL
4
±1
+4
LSB
Differential Nonlinearity4
DNL
VDD = 5 V
1
±1/4
+1
LSB
DNL
VDD = 3 V, TA = 25°C
1
±1/4
+1
LSB
DNL
VDD = 3 V, TA = 40°C to +85°C
1.5
±1/2
+1.5
LSB
Voltage Divider Tempco
ΔVW/ΔT
Code = 80H
15
ppm/°C
Full-Scale Error
VWFSE
Code = FFH
1
0.25
0
LSB
Zero-Scale Error
VWZSE
Code = 00H
0
+0.1
+1
LSB
RESISTOR TERMINALS
Voltage Range5
VA, VB, VW
0
VDD
V
Capacitance6 Ax, Bx
CA, CB
f = 1 MHz, measured to GND, code = 80H
15
pF
Capacitance6 Wx
CW
f = 1 MHz, measured to GND, code = 80H
80
pF
Shutdown Current7
IA_SD
VA = VDD, VB = 0 V, SHDN = 0
0.01
5
μA
Shutdown Wiper Resistance
RW_SD
VA = VDD, VB = 0 V, SHDN = 0, VDD = 5 V
100
200
Ω
DIGITAL INPUTS AND OUTPUTS
Input Logic High
VIH
VDD = 5 V
2.4
V
Input Logic Low
VIL
VDD = 5 V
0.8
V
Input Logic High
VIH
VDD = 3 V
2.1
V
Input Logic Low
VIL
VDD = 3 V
0.6
V
Output Logic High
VOH
RL = 2.2 kΩ to VDD
VDD 0.1
V
Output Logic Low
VOL
IOL = 1.6 mA, VDD = 5 V
0.4
V
Input Current
IIL
VIN = 0 V or 5 V, VDD = 5 V
±1
μA
Input Capacitance6
CIL
5
pF
POWER SUPPLIES
Power Supply Range
VDD range
2.7
5.5
V
Supply Current (CMOS)
IDD
VIH = VDD or VIL = 0 V
0.01
5
μA
Supply Current (TTL)8
IDD
VIH = 2.4 V or 0.8 V, VDD = 5.5 V
0.9
4
mA
Power Dissipation (CMOS)9
PDISS
VIH = VDD or VIL = 0 V, VDD = 5.5 V
27.5
μW
Power Supply Sensitivity
PSS
VDD = 5 V ± 10%
0.0002
0.001
%/%
PSS
VDD = 3 V ± 10%
0.006
0.03
%/%
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