參數(shù)資料
型號(hào)： AD5235BRU250
廠商： ANALOG DEVICES INC
元件分類： 數(shù)字電位計(jì)
英文描述： Audio digital potentiometers
中文描述： DUAL 250K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 1024 POSITIONS, PDSO16
封裝： MO-153AB, TSSOP-16
文件頁(yè)數(shù)： 2/10頁(yè)
文件大小： 102K
代理商： AD5235BRU250
PRELIMINARY TECHNICAL DATA
Nonvolatile Memory Digital Potentiometers
ELECTRICAL CHARACTERISTICS 25K, 250K OHM VERSIONS
(V
DD
= +3V±10% or +5V±10% and V
SS
=0V, V
A
= +V
DD
, V
B
= 0V, -40°C < T
A
< +85°C unless otherwise noted.)
Parameter
Symbol
Conditions
AD5235
REV PrD 6 NOV, 2000
Information contained in this Product Concept data sheet describes a product in the early definition stage. There is no guarantee that the
information contained here will become a final product in its present form. For latest information contact Walt Heinzer/Analog Devices, Santa Clara,
CA. TEL(408)562-7254; FAX (408)727-1550; walt.heinzer@analog.com
2
Min
Typ
1
Max
Units
DC CHARACTERISTICS RHEOSTAT MODE Specifications apply to all VRs
Resistor Differential NL
2
Resistor Nonlinearity
2
Nomnal resistor tolerance
Resistance Temperature Coefficent
Wiper Resistance
Wiper Resistance
R-DNL
R-INL
R
R
AB
/
T
R
W
R
W
R
WB
, V
A
=NC
R
WB
, V
A
=NC
T
A
= 25°C, V
AB
= V
DD
,Wiper (V
W
) = No connect
VAB = VDD, Wiper (V
W
) = No Connect
I
W
= 1 V/R, V
DD
= +5V
I
W
= 1 V/R, V
DD
= +3V
-1
-2
-30
±1/4
±1/2
50
50
200
+1
+2
30
100
LSB
LSB
%
ppm/°C
DC CHARACTERISTICS POTENTIOMETER DIVIDER MODE Specifications apply to all VRs
Resolution
Integral Nonlinearity
3
Differential Nonlinearity
3
Voltage Divider Temperature Coefficent
Full-Scale Error
Zero-Scale Error
N
INL
DNL
V
W
/
T
V
WFSE
V
WZSE
Code = Half-scale
Code = Full-scale
Code = Zero-scale
10
–2
–1
–3
0
Bits
LSB
LSB
±1/2
±1/4
15
-1
+1
+2
+1
+0
+3
ppm/°C
LSB
LSB
RESISTOR TERMINALS
Voltage Range
4
Capacitance
5
Ax, Bx
Capacitance
5
Wx
Common-mode Leakage Current
7
V
A,B,W
C
A,B
C
W
I
CM
f = 1 MHz, measured to GND, Code = Half-scale
f = 1 MHz, measured to GND, Code = Half-scale
V
A
= V
B
= V
DD
/2
V
SS
V
DD
1
V
45
60
0.01
pF
pF
μA
DIGITAL INPUTS & OUTPUTS
Input Logic High
Input Logic Low
Output Logic High
Output Logic High
Output Logic Low
Input Current
Input Capacitance
5
V
IH
V
IL
V
OH
V
OH
V
OL
I
IL
C
IL
with respect to GND
with respect to GND
R
PULL-UP
= 2.2K
to +5V
I
OH
= 40
μ
A, V
LOGIC
= +5V
I
OL
= 1.6mA, V
LOGIC
= +5V
V
IN
= 0V or V
DD
0.3
V
DD
0.4
±1
V
V
V
V
V
0.7
V
DD
4.9
4
μA
pF
5
POWER SUPPLIES
Single-Supply Power Range
Dual-Supply Power Range
Positive Supply Current
Programmng Mode Current
Read Mode Current
Negative Supply Current
Power Dissipation
6
Power Supply Sensitivity
V
DD
V
DD
/V
SS
I
DD
I
DD(PG)
I
DD(READ)
I
SS
P
DISS
PSS
V
SS
= 0V
V
SS
= 0V
V
IH
= V
DD
or V
IL
= GND
V
IH
= V
DD
or V
IL
= GND
V
IH
= V
DD
or V
IL
= GND
V
IH
= V
DD
or V
IL
= GND, V
DD
= 2.5V, V
SS
= -2.5V
V
IH
= V
DD
or V
IL
= GND
V
DD
= +5V ±10%
2.7
±2.2
5.5
±2.7
20
10
0.05
0.01
V
V
2
15
650
0.002
μA
mA
μA
μA
mW
%/%
DYNAMIC CHARACTERISTICS
5, 7
Bandwidth –3dB
Total Harmonic Distortion
V
W
Settling Time
Resistor Noise Voltage
Crosstalk
BW_25K
THD
W
t
S
e
N_WB
C
T
R = 12K
V
A
=1Vrms, V
B
= 0V, f=1KHz
V
A
= VDD, V
B
=0V, 50% of final value
25K/250K
R
WB
= 10K
, f = 1KHz
V
A
= V
DD
, V
B
= 0V, Measue V
W
with adjacent
VR making full scale change
400
0.003
KHz
%
0.6/3/6
9
-65
μs
nV
√
Hz
dB
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