參數(shù)資料
型號: AD5243BRM2.5
廠商: ANALOG DEVICES INC
元件分類: 數(shù)字電位計
英文描述: Dual 256-Position I2C Compatible Digital Potentiometer
中文描述: DUAL 2.5K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO10
封裝: 3 X 4.90 MM, MO-187BA, MSOP-10
文件頁數(shù): 3/20頁
文件大?。?/td> 798K
代理商: AD5243BRM2.5
AD5243/AD5248
ELECTRICAL CHARACTERISTICS—2.5 k VERSION
V
DD
= 5 V ± 10%, or 3 V ± 10%; V
A
= +V
DD
; V
B
= 0 V;
40°C < T
A
< +125°C; unless otherwise noted.
Table 1.
Parameter
Symbol
DC CHARACTERISTICS—RHEOSTAT MODE
Resistor Differential Nonlinearity
2
R-DNL
Resistor Integral Nonlinearity
2
R-INL
Nominal Resistor Tolerance
3
R
AB
Resistance Temperature Coefficient
(R
AB
/R
AB
)/T
R
WB
(Wiper Resistance)
R
WB
DC CHARACTERISTICS—POTENTIOMETER DIVIDER MODE (Specifications Apply to All VRs)
Differential Nonlinearity
4
DNL
Integral Nonlinearity
INL
Voltage Divider Temperature
Coefficient
Full-Scale Error
V
WFSE
Zero-Scale Error
V
WZSE
RESISTOR TERMINALS
Voltage Range
5
V
A
, V
B
, V
W
Capacitance
6
A, B
C
A,
C
B
Capacitance
6
W
C
W
Shutdown Supply Current
7
I
A_SD
Common-Mode Leakage
I
CM
DIGITAL INPUTS AND OUTPUTS
Input Logic High
V
IH
Input Logic Low
V
IL
Input Logic High
V
IH
Input Logic Low
V
IL
Input Current
I
IL
Input Capacitance
6
C
IL
POWER SUPPLIES
Power Supply Range
V
DD RANGE
Supply Current
I
DD
Power Dissipation
8
P
DISS
Power Supply Sensitivity
PSS
DYNAMIC CHARACTERISTICS
9
Bandwidth 3 dB
BW_2.5 K
Total Harmonic Distortion
THD
W
V
W
Settling Time
t
S
Resistor Noise Voltage Density
e
N_WB
See notes at end of section.
Rev. 0 | Page 3 of 20
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, V
DD
= 5 V
Min
2
6
20
1.5
2
Typ
1
±0.1
±0.75
35
160
±0.1
±0.6
15
Max
+2
+6
+55
200
+1.5
+2
Unit
LSB
LSB
%
ppm/°C
LSB
LSB
ppm/°C
Code = 0x80
(V
W
/V
W
)/T
Code = 0xFF
Code = 0x00
f = 1 MHz, measured to GND, Code = 0x80
f = 1 MHz, measured to GND, Code = 0x80
V
DD
= 5.5 V
V
A
= V
B
= V
DD
/2
V
DD
= 5 V
V
DD
= 5 V
V
DD
= 3 V
V
DD
= 3 V
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
DD
= 5 V
V
DD
= 5 V ± 10%, Code = midscale
Code = 0x80
V
A
= 1 V rms, V
B
= 0 V, f = 1 kHz
V
A
= 5 V, V
B
= 0 V, ±1 LSB error band
R
WB
= 1.25 k, R
S
= 0
10
0
GND
2.4
2.1
2.7
2.5
2
45
60
0.01
1
5
3.5
±0.02
4.8
0.1
1
3.2
0
10
V
DD
1
0.8
0.6
±1
5.5
6
30
±0.08
LSB
LSB
V
pF
pF
μA
nA
V
V
V
V
μA
pF
V
μA
μW
%/%
MHz
%
μs
nV/
Hz
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