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DS1803-50 Datasheet

  • DS1803-50

  • IC-50K DUAL POT

  • 10頁(yè)

  • ETC

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DS1803
DS1803
Addressable Dual Digital Potentiometer
FEATURES
PIN ASSIGNMENT
H1
L1
W1
A2
A1
A0
GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
VCC
NC
H0
L0
W0
SDA
SCL
鈥?/div>
3V or 5V Power Supplies
鈥?/div>
Ultra鈥搇ow power consumption
鈥?/div>
Two digitally controlled, 256鈥損osition potentiometers
鈥?/div>
14鈥揚(yáng)in TSSOP (173 mil) and 16鈥揚(yáng)in SOIC (150 mil)
packaging available for surface mount applications
鈥?/div>
Addressable using 3鈥揅hip Select Inputs
鈥?/div>
Serial/Synchronous Bus Interface
鈥?/div>
Operating Temperature
鈥?Industrial: 鈥?0擄C to +85擄C
DS1803E 14鈥揚(yáng)IN TSSOP (173 MIL)
H1
NC
L1
W1
A2
A1
A0
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VCC
NC
H0
L0
W0
NC
SDA
SCL
鈥?/div>
Standard Resistance Values:
鈥?DS1803鈥?10
鈥?DS1803鈥?50
鈥?DS1803鈥?00
10K鈩?/div>
50K鈩?/div>
100K鈩?/div>
DS1803Z 16鈥揚(yáng)IN SOIC (150 MIL)
DS1803 16鈥揚(yáng)IN DIP (300 MIL)
See Mech. Drawings
Section
PIN DESCRIPTION
L0, L1
H0, H1
W0, W1
V
CC
A0 ..A2
SDA
SCL
GND
NC
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Low End of Resistor
High End of Resistor
Wiper Terminal of Resistor
3V/5V Power Supply Input
Chip Select Inputs
Serial Data I/O
Serial Clock Input
Ground
No connection
DESCRIPTION
The DS1803 is an addressable device having two inde-
pendently controlled potentiometers. Each potentiome-
ter鈥檚 wiper can be set to one of 256 positions. Device
control is achieved via a 2鈥搘ire serial interface having a
data I/O terminal and a clock input terminal. Device
addressing is provided through three chip select input
terminals and correct communication protocol. Addres-
sing capability, when operating in a bus topology, allows
up to eight devices to be controlled by the serial inter-
face. The exact wiper position of each potentiometer
can be written or read. The DS1803 is available in a
16鈥損in DIP, 16鈥損in SOIC and 14鈥損in TSSOP package.
The device is available in three standard resistance val-
ues: 10K鈩? 50K鈩? and 100K鈩? and is specified over the
industrial temperature range.
ECopyright
1995 by Dallas Semiconductor Corporation.
All Rights Reserved. For important information regarding
patents and other intellectual property rights, please refer to
Dallas Semiconductor data books.
062097 1/10

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