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AD5280BRU20 数据表(PDF) 2 Page - Analog Devices

部件名 AD5280BRU20
功能描述  15V, I2C Compatible Digital Potentiometers
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD5280BRU20 数据表(HTML) 2 Page - Analog Devices

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PRELIMINARY TECHNICAL DATA
AD5280/AD5282
2
REV PrE 12 MAR 02
Information contained in this Product Concept Data Sheet describes a product in the early definition stage. There is no guarantee that the information contained here will become a final
product in its present form. For latest information contact Walt Heinzer/Analog Devices, Santa Clara, CA. TEL 408 382-3107; FAX 408 382-2721; email; walt.heinzer@analog.com
ELECTRICAL CHARACTERISTICS 20K, 50K, 200K OHM VERSION (V
DD = +5V, VSS = -5V, VLOGIC = +5V,
VA = +VDD, VB = 0V, -40°C < TA < +85°C unless otherwise noted.)
Parameter
Symbol
Conditions
Min
Typ
1
Max
Units
DC CHARACTERISTICS RHEOSTAT MODE Specifications apply to all VRs
Resistor Differential NL2
R-DNL
RWB, VA=NC
-1
±0.4
+1
LSB
Resistor Nonlinearity2
R-INL
RWB, VA=NC
-1
±0.5
+1
LSB
Nominal resistor tolerance3
∆R
TA = 25°C
-30
30
%
Resistance Temperature Coefficient
RAB/∆T
VAB = VDD, Wiper = No Connect
30
ppm/°C
Wiper Resistance
RW
IW = VDD /R, VDD = +3V or +5V
40
100
DC CHARACTERISTICS POTENTIOMETER DIVIDER MODE Specifications apply to all VRs
Resolution
N
8
Bits
Integral Nonlinearity4
INL
RAB=20K
Ω, 50KΩ
–1
±0.5
+1
LSB
Integral Nonlinearity4
INL
RAB=200K
–2
±0.5
+2
LSB
Differential Nonlinearity4
DNL
–1
±0.4
+1
LSB
Voltage Divider Temperature Coefficient
∆VW/∆T
Code = 80H
5
ppm/°C
Full-Scale Error
VWFSE
Code = FFH
–1
-0.5
+0
LSB
Zero-Scale Error
VWZSE
Code = 00H
0
+0.5
+1
LSB
RESISTOR TERMINALS
Voltage Range5
VA,B,W
VSS
VDD
V
Capacitance6 A, B
CA,B
f = 1 MHz, measured to GND, Code = 80H
45
pF
Capacitance6 W
CW
f = 1 MHz, measured to GND, Code = 80H
60
pF
Common Mode Leakage
ICM
VA = VB = VW
1
nA
DIGITAL INPUTS
Input Logic High
VIH
SDA & SCL
0.7VLOGIC
VLOGIC+0.5
V
Input Logic Low
VIL
SDA & SCL
-0.5
0.3VLOGIC
V
Input Logic High
VIH
AD0 & AD1
2.4
VLOGIC
V
Input Logic Low
VIL
AD0 & AD1
0
0.8
V
Input Logic High
VIH
VLOGIC = +3V, AD0 & AD1
2.1
VLOGIC
V
Input Logic Low
VIL
VLOGIC = +3V, AD0 & AD1
0
0.6
V
Input Current
IIL
VIN = 0V or +5V
±1
µA
Input Capacitance6
CIL
3
pF
DIGITAL Output
O1, O2
VOH
IOH=0.4mA
2.4
5.5
V
O1, O2
VOL
IOL=-1.6mA
0
0.4
V
SDA
VOL
IOL = -6mA
0.6
V
SDA
VOL
IOL = -3mA
0.4
V
Three-State Leakage Current
IOZ
VIN = 0V or +5V
±1
µA
Output Capacitance6
COZ
3
8
pF
POWER SUPPLIES
Logic Supply
VLOGIC
+2.7
+5.5
V
Power Single-Supply Range
VDD RANGE
VSS = 0V
+5
+15
V
Power Dual-Supply Range
VDD/SS RANGE
±4.5
±5.5
V
Logic Supply Current
ILOGIC
VLOGIC = +5V
10
µA
Positive Supply Current
IDD
VIH = +5V or VIL = 0V
20
60
µA
Negative Supply Current
ISS
20
60
µA
Power Dissipation10
PDISS
VIH = +5V or VIL = 0V, VDD = +5V, VSS = -5V
0.2
0.6
mW
Power Supply Sensitivity
PSS
0.05
0.015
%/%


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