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CAT504

更新时间： 2024-11-24 22:40:07
品牌 Logo 应用领域
CATALYST /
页数 文件大小 规格书
12页 145K
描述
8-Bit Quad DACpot

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CAT504 数据手册

 浏览型号CAT504的Datasheet PDF文件第2页浏览型号CAT504的Datasheet PDF文件第3页浏览型号CAT504的Datasheet PDF文件第4页浏览型号CAT504的Datasheet PDF文件第5页浏览型号CAT504的Datasheet PDF文件第6页浏览型号CAT504的Datasheet PDF文件第7页 
CAT504  
8-Bit Quad DACpot  
FEATURES  
APPLICATIONS  
■ Output settings retained without power  
■ Output range includes both supply rails  
■ 4 independently addressable outputs  
■ 1 LSB Accuracy  
■ Automated product calibration.  
■ Remote control adjustment of equipment  
■ Offset, gain and zero adjustments in Self-  
Calibrating and Adaptive Control systems.  
■ Tamper-proof calibrations.  
■ Serial µP interface  
■ Single supply operation: 2.7V-5.5V  
■ Setting read-back without effecting outputs  
DESCRIPTION  
The CAT504 is a quad 8-Bit Memory DAC designed as  
an electronic replacement for mechanical potentiom-  
eters and trim pots. Intended for final calibration of  
productssuchascamcorders,faxmachinesandcellular  
telephones on automated high volume production lines,  
it is also well suited for systems capable of self calibra-  
tion, and applications where equipment which is either  
difficult to access or in a hazardous environment, re-  
quires periodic adjustment.  
Control of the CAT504 is accomplished with a simple 3  
wire serial interface. A Chip Select pin allows several  
CAT504s to share a common serial interface and com-  
munication back to the host controller is via a single  
serial data line thanks to the CAT504’s Tri-Stated Data  
Output pin.  
The CAT504 operates from a single 3–5 volt power  
supply drawing just a few milliwatts of power. When  
storing data in EEPROM memory an additional 20 volt  
low current supply is required.  
The 4 independently programmable DAC's have an  
output range which includes both supply rails. Output  
settings, stored in non-volatile EEPROM memory, are  
not lost when the device is powered down and are  
automatically reinstated when power is returned. Each  
output 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.  
The CAT504 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 Surface  
mount packages.  
FUNCTIONAL DIAGRAM  
PIN CONFIGURATION  
V
V
V
H
PP  
DD  
REF  
DIP Package (P)  
SOIC Package (J)  
3
1
14  
H
1
H
1
V
V
V
V
1
2
3
4
5
6
14  
13  
12  
11  
10  
9
V
V
DD  
1
2
3
4
5
6
14  
13  
12  
11  
10  
9
DD  
REF  
REF  
7
PROGRAM  
CONTROL  
PROG  
CLK  
CLK  
OUT  
13  
12  
11  
10  
6
OUT  
V
1
2
3
4
DAC 1  
DAC 2  
OUT  
2
3
4
2
3
4
V
V
V
V
PP  
PP  
OUT  
V
OUT  
OUT  
V
OUT  
V
OUT  
CAT  
504  
CAT  
504  
CS  
DI  
CS  
DI  
5
2
DI  
V
V
OUT  
OUT  
L
L
DATA  
REGISTER  
& EEPROM  
DO  
V
REF  
GND  
DO  
V
REF  
GND  
SERIAL  
CONTROL  
CLK  
PROG  
PROG  
8
7
8
7
DAC 3  
DAC 4  
V
OUT  
4
CS  
V
OUT  
SERIAL  
DATA  
OUTPUT  
REGISTER  
DO  
CAT504  
8
9
GND  
V
L
REF  
Doc. No. 25048-0A 2/98 M-1  
© 1998 by Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
1
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