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參數(shù)資料
| 型號： | AD5227 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 數(shù)字電位計(jì) |
| 英文描述： | 64-Position Up/Down Control Digital Potentiometer |
| 中文描述： | 64工位上/下控制數(shù)字電位器 |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 331K |
| 代理商： | AD5227 |
AD5227
ELECTRICAL CHARACTERISTICS
10 k, 50 k, 100 k versions: V
DD
= 3 V ± 10% or 5 V ± 10%, V
A
= V
DD
, V
B
= 0 V, 40°C < T
A
< +105°C, unless otherwise noted.
Table 2.
Parameter
Symbol
DC CHARACTERISTICS RHEOSTAT MODE
Resistor Differential Nonlinearity
2
R-DNL
Resistor Integral Nonlinearity
2
R-INL
Nominal Resistor Tolerance
3
R
AB
/R
AB
Resistance Temperature Coefficient
(R
AB
/R
AB
)/T × 10
6
Wiper Resistance
R
W
DC CHARACTERISTICS POTENTIOMETER DIVIDER MODE
Resolution
N
Integral Nonlinearity
3
INL
Differential Nonlinearity
3, 4
DNL
Voltage Divider Temperature Coefficient
(V
W
/V
W
)/T × 10
6
Full-Scale Error
V
WFSE
Zero-Scale Error
V
WZSE
RESISTOR TERMINALS
Voltage Range
5
V
A, B, W
Capacitance A, B
6
C
A, B
Rev. 0 | Page 3 of 16
Conditions
R
WB
, A = no connect
R
WB
, A = no connect
V
DD
= 2.7 V
V
DD
= 5.5 V
Midscale
≥+31 steps from midscale
≤32 steps from midscale
With respect to GND
f = 1 MHz, measured to
GND
f = 1 MHz, measured to
GND
V
A
= V
B
= V
W
V
IN
= 0 V or 5 V
V
IH
= 5 V or V
IL
= 0 V,
V
DD
= 5 V
V
IH
= 5 V or V
IL
= 0 V,
V
DD
= 5 V
V
DD
= 5 V ± 10%
R
AB
= 10 k, midscale
R
AB
= 50 k, midscale
R
AB
= 100 k, midscale
V
A
= 1 V rms, R
AB
= 10 k,
V
B
= 0 V dc, f = 1 kHz
V
A
= 5 V ± 1 LSB error
band, V
B
= 0, measured at
V
W
R
WB
= 5 k, f = 1 kHz
Min
0.5
1
20
1
0.5
1
0
0
Typ
1
±0.15
±0.3
35
100
50
±0.1
±0.1
5
0.5
0.5
140
Max
+0.5
+1
+20
200
6
+1
+0.5
0
+1
V
DD
Unit
LSB
LSB
%
ppm/°C
Bits
LSB
LSB
ppm/°C
LSB
LSB
V
pF
Capacitance W
6
C
W
150
pF
Common-Mode Leakage
DIGITAL INPUTS (CS, CLK, U/D)
Input Logic High
Input Logic Low
Input Current
Input Capacitance
6
POWER SUPPLIES
Power Supply Range
Supply Current
I
CM
V
IH
V
IL
I
I
C
I
V
DD
I
DD
2.4
0
2.7
1
5
0.4
5.5
0.8
±1
5.5
3
nA
V
V
μA
pF
V
μA
Power Dissipation
7
P
DISS
17
μW
Power Supply Sensitivity
DYNAMIC CHARACTERISTICS
6,
8,
9
Bandwidth –3 dB
Total Harmonic Distortion
PSSR
BW_10 k
BW_50 k
BW_100 k
THD
0.01
460
100
50
0.05
0.05
%/%
kHz
kHz
kHz
%
Adjustment Settling Time
t
S
1
μs
Resistor Noise Voltage
Footnotes on the next page.
e
N_WB
14
nV/√Hz
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