AD5255BRU250 查看數據表（PDF） - Analog Devices
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AD5255BRU250 Datasheet PDF : 20 Pages
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AD5255
ELECTRICAL CHARACTERISTICS
Single supply: VDD = 2.7 V to 5.5 V and −40°C < TA < +85°C, unless otherwise noted.
Dual supply: VDD = +2.25 V or +2.75 V, VSS = −2.25 V or −2.75 V, and −40°C < TA < +85°C, unless otherwise noted.
Table 1.
Parameter
DC CHARACTERISTICS,
RHEOSTAT MODE
Resistor Differential Nonlinearity2
Resistor Integral Nonlinearity2
Resistance Temperature Coefficent
Wiper Resistance
Channel Resistance Matching
Nominal Resistor Tolerance
DC CHARACTERISTICS,
POTENTIOMETER DIVIDER MODE
Differential Nonlinearity3
Integral Nonlinearity3
Voltage Divider Temperature Coefficent
Full-Scale Error
Zero-Scale Error
RESISTOR TERMINALS
Terminal Voltage Range4
Capacitance5 Ax, Bx
Capacitance5 Wx
Common-Mode Leakage Current 5, 6
Symbol
Conditions
Min Typ1 Max
R-DNL
RWB, 7-bit channels
RWB, 9-bit channels
−0.7
+0.7
5
5
−2.5
+2.5
R-INL
RWB, 7-bit channels
−0.5
+0.5
R-INL
RWB, 9-bit channels, VDD = 5.5 V −2.0
+2.0
R-INL
RWB, 9-bit channels, VDD = 2.7 V −4.0
+4.0
(∆RWB/RWB)/∆T × 107
35
RW
VDD = 5 V, IW = 1 V/RWB
100 150
VDD = 3 V, IW = 1 V/RWB
250 400
∆RAB1/∆RAB2
Ch 1 and 2 RWB, Dx = 0x1FF
0.1
∆RAB/RAB
Dx = 0x3FF
−15
+15
DNL
7-bit channels
DNL
9-bit channels
−0.5
+0.5
−2.0
+2.0
INL
INL
(∆VW/VW)/∆T × 107
VWFSE
VWZSE
7-bit channels
9-bit channels
Code = half scale
7-bit channels/9-bit channels,
code = full scale
7-bit channels/9-bit channels,
code = zero scale
−0.5
+0.5
−2.0
+2.0
15
−1/−2.75 0/0
0/0
1/2.0
VA, VB, VW
CA,B
CW
ICM
VSS
VDD
f = 1 kHz, measured to GND,
85
code = half scale
f = 1 kHz, measured to GND,
95
code = half scale
VW = VDD/2
0.01 1
Unit
LSB
LSB
LSB
LSB
LSB
ppm/°C
Ω
Ω
%
%
LSB
LSB
LSB
LSB
ppm/°C
LSB
LSB
V
pF
pF
μA
Rev. A | Page 3 of 20
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