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參數(shù)資料
| 型號： | CAT5132 |
| 英文描述： | 16-Bit Bus Transceiver With 3-State Outputs 54-BGA MICROSTAR JUNIOR -40 to 85 |
| 中文描述： | 15伏數(shù)字可編程電位（民進(jìn)黨）的128抽頭和2線接口 |
| 文件頁數(shù)： | 11/13頁 |
| 文件大?。?/td> | 245K |
| 代理商： | CAT5132 |
CAT5132
11
Doc No. 25092, Rev. 00
2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
POTENTIOMETER OPERATION
Power-On
The CAT5132 is a 128-position, digital controlled
potentiometer. At power-up the device turns on at the
mid-point wiper location (64) until the wiper register can
be loaded with the nonvolatile memory location previously
stored in the device. After the nonvolatile memory data
is loaded into the wiper register the wiper location will
change to the previously stored wiper position.
The end-to-end nominal resistance of the potentiometer
has 128 contact points linearly distributed across the
total resistor. Each of these contact points is addressed
by the 7 bit wiper register which is decoded to select one
of these 128 contact points.
Each contact point generates a linear resistive value
between the 0 position and the 127 position. These
values can be determined by dividing the end-to-end
value of the potentiometer by 127. In the case of the
10k
potentiometer~79
is the resistance between
each wiper position. However in addition to the ~79
for
each resistive segment of the potentiometer, a wiper
resistance offset must be considered. Table 8 shows the
effect of this value and how it would appear on the wiper
terminal.
This offset will appear in each of the CAT5132 end-to-
end resistance values in the same way as the 10k
example. However resistance between each wiper
position for the 50k
version will be ~395
and for the
100k
version will be ~790
.
Table 8. Potentiometer Resistance and Wiper
Resistance Offset Effects
n
o
o
P
R
l
c
y
T
W
R
o
0
t
L
r
o
f
e
c
n
a
e
P
P
R
D
k
1
0
0
0
7
r
9
4
r
7
4
r
0
7
r
0
9
7
7
7
0
7
+
1
0
1
0
7
+
3
6
0
9
0
7
+
7
2
1
0
1
0
0
0
1
0
7
+
n
o
o
P
R
l
c
y
T
W
R
k
o
0
t
H
r
o
f
e
c
n
a
e
P
P
R
D
1
0
0
0
7
0
1
r
r
r
0
7
r
0
0
0
1
0
7
+
4
6
7
4
0
7
7
7
0
9
0
7
+
6
2
1
9
4
1
9
0
7
+
7
2
1
0
7
+
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CAT5132GZ-100TE13 | 15 Volt Digitally Programmable Potentiometer (DPP) with 128 Taps and 2-wire Interface |
| CAT5132GZ-10TE13 | 15 Volt Digitally Programmable Potentiometer (DPP) with 128 Taps and 2-wire Interface |
| CAT5132GZ-50TE13 | 15 Volt Digitally Programmable Potentiometer (DPP) with 128 Taps and 2-wire Interface |
| CAT5132R-50TE13 | 15 Volt Digitally Programmable Potentiometer (DPP) with 128 Taps and 2-wire Interface |
| CAT5132Z-100TE13 | 15 Volt Digitally Programmable Potentiometer (DPP) with 128 Taps and 2-wire Interface |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CAT5132ZGI-10 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT5132ZI-00-G | 功能描述:數(shù)字電位計 IC Ind Temp 100K 2-Wire 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| CAT5132ZI-00-GT3 | 功能描述:數(shù)字電位計 IC DPP 15V 128 taps I2C 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| CAT5132ZI-10-G | 功能描述:數(shù)字電位計 IC Ind Temp 10K 2-Wire 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| CAT5132ZI-10-GT3 | 功能描述:數(shù)字電位計 IC DPP,15V,128 taps,I2C 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
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