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参数资料
| 型号： | AD5254BRUZ50-RL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 23/32页 |
| 文件大小： | 0K |
| 描述： | IC POT DGTL QUAD 50K 20TSSOP |
| 标准包装： | 1,000 |
| 接片： | 256 |
| 电阻（欧姆）： | 50k |
| 电路数： | 4 |
| 温度系数： | 标准值 650 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | I²C（设备位址） |
| 电源电压： | 2.7 V ~ 5.5 V，±2.25 V ~ 2.75 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 带卷 (TR) |
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Data Sheet
AD5253/AD5254
Rev. C | Page 3 of 32
ELECTRICAL CHARACTERISTICS
1 k VERSION
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 1.
Parameter
Symbol
Conditions
Min
Typ1
Max
Unit
DC CHARACTERISTICS—
RHEOSTAT MODE
Resolution
N
AD5253
6
Bits
AD5254
8
Bits
Resistor Differential Nonlinearity2
R-DNL
R
WB, RWA = NC, VDD = 5.5 V, AD5253
–0.5
±0.2
+0.5
LSB
R
WB, RWA = NC, VDD = 5.5 V, AD5254
–1.00
±0.25
+1.00
LSB
R
WB, RWA = NC, VDD = 2.7 V, AD5253
–0.75
±0.30
+0.75
LSB
R
WB, RWA = NC, VDD = 2.7 V, AD5254
–1.5
±0.3
+1.5
LSB
Resistor Nonlinearity2
R-INL
R
WB, RWA = NC, VDD = 5.5 V, AD5253
–0.5
±0.2
+0.5
LSB
R
WB, RWA = NC, VDD = 5.5 V, AD5254
–2.0
±0.5
+2.0
LSB
R
WB, RWA = NC, VDD = 2.7 V, AD5253
–1.0
+2.5
+4.0
LSB
R
WB, RWA = NC, VDD = 2.7 V, AD5254
–2
+9
+14
LSB
Nominal Resistor Tolerance
ΔR
AB/RAB
T
A = 25°C
–30
+30
%
Resistance Temperature Coefficient
(ΔR
AB/RAB) × 10
6/ΔT
650
ppm/°C
Wiper Resistance
R
W
I
W = 1 V/R, VDD = 5 V
75
130
I
W = 1 V/R, VDD = 3 V
200
300
Channel-Resistance Matching
ΔR
AB1/ΔRAB2
0.15
%
DC CHARACTERISTICS—
POTENTIOMETER DIVIDER MODE
Differential Nonlinearity3
DNL
AD5253
–0.5
±0.1
+0.5
LSB
AD5254
–1.00
±0.25
+1.00
LSB
Integral Nonlinearity3
INL
AD5253
–0.5
±0.2
+0.5
LSB
AD5254
–2.0
±0.5
+2.0
LSB
Voltage Divider Tempco
(ΔV
W/VW) × 10
6/ΔT
Code = half scale
25
ppm/°C
Full-Scale Error
V
WFSE
Code = full scale, V
DD = 5.5 V, AD5253
–5
–3
0
LSB
Code = full scale, V
DD = 5.5 V, AD5254
–16
–11
0
LSB
Code = full scale, V
DD = 2.7 V, AD5253
–6
–4
0
LSB
Code = full scale, V
DD = 2.7 V, AD5254
–23
–16
0
LSB
Zero-Scale Error
V
WZSE
Code = zero scale, V
DD = 5.5 V, AD5253
0
3
5
LSB
Code = zero scale, V
DD = 5.5 V, AD5254
0
11
16
LSB
Code = zero scale, V
DD = 2.7 V, AD5253
0
4
6
LSB
Code = zero scale, V
DD = 2.7 V, AD5254
0
15
20
LSB
RESISTOR TERMINALS
Voltage Range4
V
A, VB, VW
V
SS
V
DD
V
Capacitance5 A, B
C
A, CB
f = 1 kHz, measured to GND,
code = half scale
85
pF
Capacitance5 W
C
W
f = 1 kHz, measured to GND,
code = half scale
95
pF
Common-Mode Leakage Current
I
CM
V
A = VB = VDD/2
0.01
1.00
A
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