參數(shù)資料
型號(hào)： CAT5259UI-50TE13
元件分類(lèi)： 數(shù)字電位計(jì)
英文描述： Quad Digitally Programmable Potentiometers (DPP) with 256 Taps and 2-wire Interface
中文描述： 四數(shù)字可編程電位計(jì)（民進(jìn)黨）與256絲錐和2線接口
文件頁(yè)數(shù)： 3/16頁(yè)
文件大?。?/td> 137K
代理商： CAT5259UI-50TE13
3
CAT5259
Document No. 2000, Rev. F
ABSOLUTE MAXIMUM RATINGS*
Temperature Under Bias .................
–
55
°
C to +125
°
C
Storage Temperature.......................
–
65
°
C to +150
°
C
Voltage on any Pin with
Respect toV
SS(1)(2)
................
–
2.0V to +V
CC
+2.0V
V
CC
with Respect to Ground ...............
–
2.0V to +7.0V
Package Power Dissipation
Capability (Ta = 25
°
C)................................... 1.0W
Lead Soldering Temperature (10 secs) ............ 300
°
C
Wiper Current.................................................... +6mA
Note:
(1) This parameter is tested initially and after a design or process change that affects the parameter.
(2) Absolute linearity is utilitzed to determine actual wiper voltage versus expected voltage as determined by wiper position when used
as a potentiometer.
(3) 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.
(4) LSB = R
TOT
/ 255 or (R
H
- R
L
) / 255, single pot
(5) n = 0, 1, 2, ..., 255
Note:
(1) The minimum DC input voltage is
–
0.5V. During transitions, inputs may undershoot to
–
2.0V for periods of less than 20 ns.
Maximum DC voltage on output pins is V
CC
+0.5V, which may overshoot to V
CC
+2.0V for periods of less than 20 ns.
(2) Latch-up protection is provided for stresses up to 100 mA on address and data pins from
–
1V to V
CC
+1V.
POTENTIOMETER CHARACTERISTICS
(Over recommended operating conditions unless otherwise stated.)
Limits
Typ.
100
Symbol
R
POT
R
POT
Parameter
Min.
Max.
Units
k
k
Test Conditions
Potentiometer Resistance (100K
)
Potentiometer Resistance (50K
)
50
Potentiometer Resistance
Tolerance
+20
%
R
POT
Matching
1
%
Power Rating
50
mW
25
°
C, each pot
I
W
R
W
R
W
V
TERM
V
N
Wiper Current
+3
mA
V
Wiper Resistance
200
300
I
W
= +3mA @ V
CC
= 3V
I
W
= +3mA @ V
CC
= 5V
V
SS
= 0V
(1)
Wiper Resistance
100
150
Voltage on any R
H
or R
L
Pin
Noise
V
SS
V
CC
nV/
√
Hz
%
LSB
(4)
LSB
(4)
Resolution
Absolute Linearity
(2)
Relative Linearity
(3)
0.4
+1
R
w(n)(actual)
-R
(n)(expected)(5)
R
w(n+1)
-[R
w(n)+LSB
]
(5)
(1)
+0.2
TC
RPOT
TC
RATIO
C
H
/C
L
/C
W
fc
Temperature Coefficient of R
POT
Ratiometric Temp. Coefficient
+300
ppm/
C
20
ppm/
C
(1)
Potentiometer Capacitances
10/10/25
pF
(1)
Frequency Response
0.4
MHz
R
POT
= 50K
(1)
*
COMMENT
Stresses above those listed under
“
Absolute Maximum Ratings
”
may cause permanent damage to the device. These are stress
ratings only, and functional operation of the device at these or any
other conditions outside of those listed in the operational sections
of this specification is not implied. Exposure to any absolute
maximum rating for extended periods may affect device perfor-
mance and reliability.
Recommended Operating Conditions:
V
CC
= +2.5V to +6.0V
Temperature
Industrial
Min
-40
°
C
Max
85
°
C
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