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參數資料
| 型號： | CAT5112 |
| 元件分類： | 參考電壓二極管 |
| 英文描述： | surface mount silicon Zener diodes |
| 中文描述： | 表面貼裝硅穩壓二極管 |
| 文件頁數： | 1/6頁 |
| 文件大?。?/td> | 36K |
| 代理商： | CAT5112 |
1
Advance Information
CAT5112
32-Tap Digitally Programmable Potentiometer (DPP)
2001 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Doc. No. 25091-00 Rev. 3/28/01
M-1
FEATURES
I
32 Position Linear Taper Potentiometer
I
Non-volatile NVRAM Wiper Storage
I
Low Power CMOS Technology
I
Single Supply Operation: 2.5V-6.0V
I
Increment Up/Down Serial Interface
I
Resistance Values: 10K, 20K, 50K and 100K
I
Available in PDIP, SOIC, TSSOP and MSOP packages
APPLICATIONS
I
Automated Product Calibration
I
Remote Control Adjustments
I
Offset, Gain and Zero Control Systems
I
Tamper-Proof Calibrations
I
Contrast, Brightness and Volume Controls
I
Motor Controls and Feedback Systems
I
Programmable Analog Functions
when power is returned. The wiper can be adjusted to
test new system values without effecting the stored
setting. Wiper-control of the CAT5112 is
accomplished with three input control pins,
CS
, U/
D
,
and
INC
. The
INC
input increments the wiper in the
direction which is determined by the logic state of
the U/
D
input. The
CS
input is used to select the
device and also store the wiper position prior to
power down.
The digitally programmable potentiometer can be
used as a three-terminal resistive divider or as a
two-terminal variable resistor. DPPs bring variability and
programmability to a wide variety of applications
including control, parameter adjustments, and
signal processing.
FUNCTIONAL DIAGRAM
DESCRIPTION
The CAT5112 is a single digitally programmable
potentiometer (DPP) designed as a electronic
replacement for mechanical potentiometers and trim
pots. Ideal for automated adjustments on high volume
production lines, they are also well suited for
applications where equipment requiring periodic
adjustment is either difficult to access or located in a
hazardous or remote environment.
The CAT5112 contains a 32-tap series resistor array
connected between two terminals R
H
and R
L
. An up/
down counter and decoder that are controlled by three
input pins, determines which tap is connected to the
wiper, R
W
. The CAT5112 wiper is buffered by an OP
AMP that operates rail to rail. The wiper setting, stored
in non-volatile NVRAM memory, is not lost when the
device is powered down and is automatically recalled
R
H
V
W
L
R
R
H
V
V
W
L
/
/
/
Implementation of the
Electronic Potentiometer
CS
+
–
INC
U
/D
Control
and
Memory
V
CC
R
R
R
WB
H
L
V
SS
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| CAT523 | Configured Digitally Programmable Potentiometer (DPP): Programmable Voltage Applications |
| CAT59C11K | 512K x 32 Static RAM |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| CAT5112_04 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:32-Tap Digitally Programmable Potentiometer |
| CAT5112_07 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:32-Tap Digitally Programmable Potentiometer (DPP⑩) with Buffered Wiper |
| CAT5112L-00 | 功能描述:數字電位計 IC Com Temp 100K Up/Dwn RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數:35 PPM / C 容差:25 % POT 數量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數字接口: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 |
| CAT5112L00TE13 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:32-Tap Digitally Programmable Potentiometer |
| CAT5112L-10 | 功能描述:數字電位計 IC Com Temp 10K Up/Dwn RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數:35 PPM / C 容差:25 % POT 數量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數字接口: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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