參數(shù)資料
型號(hào)： CAT523
元件分類： 數(shù)字電位計(jì)
英文描述： Configured Digitally Programmable Potentiometer (DPP): Programmable Voltage Applications
中文描述： 配置數(shù)字可編程電位（民進(jìn)黨）：可編程電壓應(yīng)用
文件頁數(shù)： 1/10頁
文件大?。?/td> 70K
代理商： CAT523
1
2001 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Advance Information
CAT523
Configured Digitally Programmable Potentiometer (DPP): Programmable Voltage Applications
FEATURES
I
Two 8-bit DPPS Configured as Programmable
Voltages in DAC-like Applications
I
Buffered Wiper Outputs
I
Nonvolatile Wiper Storage
I
Output voltage range includes both supply rails
I
2 independently addressable output wipers
I
1 LSB Accuracy, High Resolution
I
Serial
μ
P interface
I
Single supply operation: 2.7V-5.5V
I
Setting read-back without effecting outputs
APPLICATIONS
I
Automated product calibration.
I
Remote control adjustment of equipment
I
Offset, gain and zero adjustments in Self-
Calibrating and Adaptive Control systems.
I
Tamper-proof calibrations.
I
DAC (with memory) substitute
DESCRIPTION
The CAT523 is a dual, 8-bit digitally-programmable
potentiometer configured for programmable voltage and
DAC-like applications. Intended for final calibration of
products such as camcorders, fax machines and cellular
telephones on automated high volume production lines,
it is also well suited for systems capable of self
calibration, and applications where equipment which is
either difficult to access or in a hazardous environment,
requires periodic adjustment.
The 2 independently programmable DPPs have a
common output voltage range which includes both
supply rails. The wipers are buffered by rail to rail OP
AMPS. Wiper settings, stored in non-volatile memory,
are not lost when the device is powered down and are
automatically reinstated when power is returned. Each
wiper can be dithered to test new output values without
effecting the stored settings and stored settings can be
read back without disturbing the DAC’s output.
Control of the CAT523 is accomplished with a simple 3
wire serial interface. A Chip Select pin allows several
CAT523's to share a common serial interface and
communication back to the host controller is via a single
serial data line thanks to the CAT523’s Tri-Stated Data
Output pin. A RDY/
BSY
output working in concert with
an internal low voltage detector signals proper operation
of non-volatile Erase/Write cycle.
The CAT523 is available in the 0 to 70
°
C Commercial
and –40
°
C to + 85
°
C Industrial operating temperature
ranges and offered in 14-pin plastic DIP and SOIC
mount packages.
FUNCTIONAL DIAGRAM
PIN CONFIGURATION
DIP Package (P)
SOIC Package (J)
CAT523
Doc. No. 25076-00 2/98 M-1
RDY/
BSY
CLK
CS
DI
DO
PROG
VDD
2
3
4
5
6
13
12
11
10
9
8
7
1
14
GND
VREFH
VOUT1
VOUT2
NC
NC
VREFL
CLK
CS
DI
DO
PROG
VDD
2
3
4
5
6
13
12
11
10
9
7
8
1
14
GND
VREFH
VOUT1
VOUT2
NC
NC
VREFL
CAT
523
CAT
523
RDY/
BSY
RDY/BSY
PROG
CONTROL
DI
CS
CLK
SERIAL
SERIAL
DATA
OUTPUT
REGISTER
GND
VDD
14
7
5
2
4
OUT
13
12
T
OU
6
DO
8
9
3
1
DATA
REGISTER
AND
NONVOLATILE
MEMORY
+
+
V
REFH
REF
7K
7K
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參數(shù)描述
CAT523J 功能描述:數(shù)字電位計(jì) IC COM TEMP 7K 3-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(chǔ)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
CAT523JI 功能描述:數(shù)字電位計(jì) IC IND TEMP 7K 3-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(chǔ)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
CAT523L 功能描述:數(shù)字電位計(jì) IC Com Temp 7K 3-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(chǔ)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
CAT523LI 功能描述:數(shù)字電位計(jì) IC Ind Temp 7K 3-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(chǔ)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
CAT523P 功能描述:數(shù)字電位計(jì) IC Com Temp 7K 3-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(chǔ)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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