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參數(shù)資料
| 型號： | CAT5113 |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | 100-Tap Digitally Programmable Potentiometer |
| 中文描述： | 100抽頭數(shù)字可編程電位器 |
| 文件頁數(shù)： | 2/9頁 |
| 文件大?。?/td> | 452K |
| 代理商： | CAT5113 |
2
Doc. No. 2009, Rev. R
CAT5113
of the CAT5113 and is active low. When in a high
state, activity on the
INC
and U/
D
inputs will not
affect or change the position of the wiper.
DEVICE OPERATION
The CAT5113 operates like a digitally controlled
potentiometer with R
H
and R
L
equivalent to the high
and low terminals and R
W
equivalent to the mechanical
potentiometer's wiper. There are 100 available tap
positions including the resistor end points, R
H
and R
L
.
There are 99 resistor elements connected in series
between the R
H
and R
L
terminals. The wiper terminal is
connected to one of the 100 taps and controlled by three
inputs,
INC
, U/
D
and
CS
. These inputs control a seven-
bit up/down counter whose output is decoded to select
the wiper position. The selected wiper position can be
stored in nonvolatile memory using the
INC
and
CS
inputs.
With
CS
set LOW the CAT5113 is selected and will
respond to the U/
D
and
INC
inputs. HIGH to LOW
transitions on
INC
wil increment or decrement the
wiper (depending on the state of the U/
D
input and
seven-bit counter). The wiper, when at either fixed
terminal, acts like its mechanical equivalent and does
not move beyond the last position. The value of the
counter is stored in nonvolatile memory whenever
CS
transitions HIGH while the
INC
input is also HIGH. When
the CAT5113 is powered-down, the last stored wiper
counter position is maintained in the nonvolatile memory.
When power is restored, the contents of the memory are
recalled and the counter is set to the value stored.
With
INC
set low, the CAT5113 may be de-selected
and powered down without storing the current wiper
position in nonvolatile memory. This allows the
system to always power up to a preset value stored
in nonvolatile memory.
PIN DESCRIPTIONS
INC
: Increment Control Input
The
INC
input moves the wiper in the up or down direction
determined by the condition of the U/
D
input.
U/
D
: Up/Down Control Input
The U/
D
input controls the direction of the wiper
movement. When in a high state and
CS
is low, any high-
to-low transition on
INC
will cause the wiper to move one
increment toward the R
H
terminal. When in a low state
and
CS
is low, any high-to-low transition on
INC
will
cause the wiper to move one increment towards the
R
L
terminal.
R
H:
High End Potentiometer Terminal
R
H
is the high end terminal of the potentiometer. It is not
required that this terminal be connected to a potential
greater than the R
L
terminal. Voltage applied to the R
H
terminal cannot exceed the supply voltage, V
CC
or go
below ground, GND.
R
W
: Wiper Potentiometer Terminal
R
W
is the wiper terminal of the potentiometer. Its position
on the resistor array is controlled by the control inputs,
INC
,
U/
D
and
CS
. Voltage applied to the R
W
terminal cannot
exceed the supply voltage, V
CC
or go below ground, GND.
R
L
: Low End Potentiometer Terminal
R
L
is the low end terminal of the potentiometer. It is not
required that this terminal be connected to a potential
less than the R
H
terminal. Voltage applied to the R
L
terminal cannot exceed the supply voltage, V
CC
or go
below ground, GND. R
L
and R
H
are electrically
interchangeable.
CS
: Chip Select
The chip select input is used to activate the control input
PIN FUNCTIONS
Pin Name
Function
INC
Increment Control
U/
D
Up/Down Control
R
H
Potentiometer High Terminal
GND
Ground
R
W
Potentiometer Wiper Terminal
R
L
Potentiometer Low Terminal
CS
Chip Select
V
CC
Supply Voltage
PIN CONFIGURATION
DIP Package (P, L)
TSSOP Package (U, Y)
MSOP Package (R, Z)
CS
R
L
R
W
INC
U
/D
R
H
V
CC
GND
1
2
3
4
8
7
6
5
INC
U
/D
V
CC
CS
GND
R
H
R
W
R
L
1
2
3
4
8
7
6
5
V
CC
CS
R
R
GND
R
INC
U/
D
W
L
H
1
2
3
4
8
7
6
5
CS
R
L
R
W
INC
U
/D
R
H
V
CC
GND
1
2
3
4
8
7
6
5
SOIC Package (S, V)
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| CAT5113L-00 | 功能描述:數(shù)字電位計 IC Com Temp 100K Up/Dwn RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| CAT5113L10 | 功能描述:數(shù)字電位計 IC Com Temp 10K Up/Dwn RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| CAT5113LI00 | 功能描述:數(shù)字電位計 IC Ind Temp 100K Up/Dwn RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| CAT5113LI-00 | 制造商:ON Semiconductor 功能描述:100-Tap Digitally Programmable Potentiometer (DPP) 制造商:ON Semiconductor 功能描述:100-Tap Digitally Programmable Potentiometer (DPP?) |
| CAT5113LI-00-G | 功能描述:數(shù)字電位計 IC DPP,NV 100 taps Up/Down RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
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