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参数资料
| 型号： | AD5259EVAL |
| 厂商： | Analog Devices, Inc. |
| 元件分类： | 数字电位计 |
| 英文描述： | Nonvolatile, I2C-Compatible 256-Position, Digital Potentiometer |
| 中文描述： | 非易失，I2C兼容256级，数字电位器 |
| 文件页数： | 3/14页 |
| 文件大小： | 246K |
| 代理商： | AD5259EVAL |
AD5259
Preliminary Technical Data
ELECTRICAL CHARACTERISTICS—5 k, 10 k, 50 k, 100 k VERSIONS
(V
DD
= 5 V ± 10%, or 3 V ± 10%; V
A
= V
DD
; V
B
= 0 V; –40°C < T
A
< +85°C; unless otherwise noted.)
Table 1.
Parameter
Symbol
DC CHARACTERISTICS—RHEOSTAT MODE
Resistor Differential Nonlinearity
R-DNL
Resistor Integral Nonlinearity
R-INL
Nominal Resistor Tolerance
R
AB
Resistance Temperature Coefficient
R
AB
/T
Rev. PrJ 7/22/04 | Page 3 of 14
Conditions
R
WB
, V
A
= no connect
R
WB
, V
A
= no connect
T
A
= 25°C
V
AB
= V
DD
,
Wiper = no connect
Code = 0x00
Min
–1
–2
–30
±0.1
±0.25
650
Max
+1
+2
+30
Unit
LSB
LSB
%
ppm/°C
DC CHARACTERISTICS—POTENTIOMETER DIVIDER MODE
Differential Nonlinearity
Integral Nonlinearity
Voltage Divider Temperature Coefficient
Full-Scale Error
Zero-Scale Error
RESISTOR TERMINALS
Voltage Range
Capacitance A, B
R
WB
R
WB
–1
–1
–3
0
V
SS
50
±0.1
±0.3
30
–1
1
45
120
+1
+1
0
3
V
DD
LSB
LSB
ppm/°C
LSB
LSB
V
pF
DNL
INL
V
W
/T
V
WFSE
V
WZSE
V
A,B,W
C
A,B
Code = 0x80
Code = 0xFF
Code = 0x00
f = 1 MHz, measured to
GND, Code = 0x80
f = 1 MHz, measured to
GND, Code = 0x80
V
A
= V
B
= V
DD
/2
V
IN
= 0 V or 5 V
V
IH
= 5 V or V
IL
= 0 V
V
IH
= 5 V or V
IL
= 0 V
V
IH
= 5 V or V
IL
= 0 V,
V
DD
= 5 V
V
DD
= +5 V ± 10%,
Code = Midscale
R
AB
= 5k/ 10 k/50 k/100
k, Code = 0x80
V
A
=1 V rms, V
B
= 0 V,
f = 1 kHz, R
AB
= 10 k
V
A
= 5 V, V
B
= 0 V,
±1 LSB error band
R
WB
= 5 k, RS = 0
Capacitance W
C
W
60
pF
DIGITAL INPUTS AND OUTPUTS
Input Logic High
Input Logic Low
Input Current
Input Capacitance
POWER SUPPLIES
Power Supply Range
Positive Supply Current
Logic Supply(must match logic levels)
Programming Mode Current(EEMEM)
Power Dissipation
Common-Mode Leakage
I
CM
V
IH
V
IL
I
IL
C
IL
V
DD
I
DD
V
LOGIC
I
LOGIC(PROG)
P
DISS
0.7 × V
L
–0.5
2.7
2.7
1
5
35
18
V
L
+0.5
0.3×V
L
±1
5.5
1
V
DD
50
nA
V
V
μA
pF
V
μA
mA
μW
Power Supply Sensitivity
PSS
±0.02
±0.05
%/%
DYNAMIC CHARACTERISTICS
Bandwidth –3dB
BW
2000/600/
100/40
0.1
kHz
Total Harmonic Distortion
THD
W
%
V
W
Settling Time (1k/10 k/50 k/100 k)
t
S
2
μs
Resistor Noise Voltage Density
e
N_WB
9
nV/√Hz
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