DS1805E-010 Maxim Integrated Products, DS1805E-010 Datasheet - Page 6
![IC POT DIG ADDRESS 10K 14-TSSOP](/photos/6/57/65725/406-14-tssop_sml.jpg)
DS1805E-010
Manufacturer Part Number
DS1805E-010
Description
IC POT DIG ADDRESS 10K 14-TSSOP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS1805E-010.pdf
(10 pages)
Specifications of DS1805E-010
Taps
256
Resistance (ohms)
10K
Number Of Circuits
1
Temperature Coefficient
750 ppm/°C Typical
Memory Type
Volatile
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
14-TSSOP
Resistance In Ohms
10K
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DS1805E-010+
Manufacturer:
TI
Quantity:
323
Part Number:
DS1805E-010+
Manufacturer:
DALLAS
Quantity:
20 000
Addressable Digital Potentiometer
Figure 1. Functional Diagram
6
TSSOP
6, 5, 4
10–13
14
1
2
3
7
8
9
_____________________________________________________________________
PIN
2, 11–15
7, 6, 5
SO
10
16
1
3
4
8
9
A0, A1, A2
NAME
GND
SDA
N.C.
SCL
V
W1
H1
L1
CC
2-WIRE SERIAL
INTERFACE
Pin Description
SDA
SCL
SRAM
REG-0 (8-BIT REGISTER)
High End of
Potentiometer
Low End of
Potentiometer
Wiper Terminal of
Potentiometer
Address Select Inputs
Ground
Serial Clock Input
Serial Data I/O
No Connection
3V/5V Power-Supply
Input
FUNCTION
DEVICE ADDRESS
COMMAND/
SELECTION
CONTROL
UNIT
L1
WIPER-1 (8-BIT REGISTER)
256-TO-1 MULTIPLEXER
POTENTIOMETER-1
The DS1805 addressable digital potentiometer contains a
single 256-position digitally controlled potentiometer.
Device control is achieved through a 2-wire serial inter-
face. Device addressing is provided through three
address inputs that allow up to eight devices on a single
2-wire bus. The exact wiper position of the potentiometer
can be written or read. The DS1805 is available in 16-pin
SO and 14-pin TSSOP packages. The device is available
in three standard resistance values: 10kΩ, 50kΩ, and
100kΩ. The DS1805 specified over the industrial temper-
ature range. The DS1805 is provides a low-cost alterna-
tive for designs based on the DS1803, but require only a
single potentiometer.
The DS1805 is an addressable, digitally controlled
device that has a single 256-position potentiometer.
Figure 1 shows a block diagram of the part.
Communication and control of the device is accom-
plished through a 2-wire serial interface that has SDA
and SDL signals. Device addressing is attained using
the device chip-select inputs A0, A1, and A2.
A0
A1
A2
H1
W1
Detailed Description
Device Operation