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參數(shù)資料
| 型號(hào)： | X9251US24-2.7 |
| 元件分類： | 數(shù)字電位計(jì) |
| 英文描述： | Quad Digitally-Controlled (XDCP) Potentiometer |
| 中文描述： | 四數(shù)字控制（數(shù)字電位器）電位 |
| 文件頁(yè)數(shù)： | 15/25頁(yè) |
| 文件大?。?/td> | 549K |
| 代理商： | X9251US24-2.7 |
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X9251
Characteristics subject to change without notice.
15 of 25
REV 1.3.3 2/10/04
www.xicor.com
ABSOLUTE MAXIMUM RATINGS
Temperature under bias ....................–65
°
C to +135
°
C
Storage temperature.........................–65
°
C to +150
°
C
Voltage on SCK, any address input, V
CC
with respect to V
SS
..................................–1V to +7V
V = | (V
H
–VL) | ...................................................5.5V
Lead temperature (soldering, 10 seconds).........300
°
C
I
W
(10 seconds) .................................................±6mA
COMMENT
Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only; the functional operation of
the device (at these or any other conditions above
those listed in the operational sections of this
specification) is not implied. Exposure to absolute
maximum rating conditions for extended periods may
affect device reliability.
ANALOG CHARACTERISTICS
(Over recommended industrial operating conditions unless otherwise stated.)
Notes:
(1) Absolute linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used
as a potentiometer.
(2) Relative linearity is utilized to determine the actual change in voltage between two successive tap positions when used as a
potentiometer. It is a measure of the error in step size.
(3) MI = RTOT / 255 or (R
H
– R
L
) / 255, single pot
(4) During power up V
CC
> V
H
, V
L
, and V
W
.
(5) n = 0, 1, 2, …,255; m =0, 1, 2, …, 254.
Symbol
R
TOTAL
R
TOTAL
Parameter
Limits
Test Conditions
T version
U version
Min.
Typ.
100
50
Max.
Units
k
k
%
mW
mA
End to End Resistance
End to End Resistance
End to End Resistance Tolerance
Power Rating
Wiper Current
Wiper Resistance
±20
50
±3
300
25
°
C, each pot
I
W
R
W
I
W
=
@ V
CC
= 3V
150
I
W
=
@ V
CC
= 5V
V
TERM
Voltage on any R
H
or R
L
Pin
Noise
Resolution
Absolute Linearity
(1)
V
SS
V
CC
V
V
SS
= 0V
-120
0.4
dBV
/
Hz
Ref: 1V
%
MI
(3)
-1
+1
R
w(n)(actual)
– R
w(n)(expected)
(5)
Relative Linearity
(2)
-0.6
+0.6
MI
(3)
R
w(n + 1)
– [R
w(n) + MI
]
(5)
Temperature Coefficient of R
TOTAL
Ratiometric Temp. Coefficient
Potentiometer Capacitances
±
300
ppm/
°
C
ppm/°C
pF
-20
+20
C
H
/C
L
/C
W
10/10/25
See Macro model
V(V
CC
)
R
TOTAL
V(V
CC
)
R
TOTAL
RECOMMENDED OPERATING CONDITIONS
Temp
Commercial
Industrial
Min.
0
°
C
–40
°
C
Max.
+70
°
C
+85
°
C
Device
X9251
X9251-2.7
Supply Voltage (V
CC
)
(4)
Limits
5V
±
10%
2.7V to 5.5V
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