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DS2890

Dallas Semiconducotr
Part Number DS2890
Manufacturer Dallas Semiconducotr
Description 1-Wire Digital Potentiometer
Published Mar 30, 2005
Detailed Description PRELIMINARY DS2890 1-Wire Digital Potentiometer ® www.dalsemi.com FEATURES Single element 256-position linear taper p...
Datasheet PDF File DS2890 PDF File

DS2890
DS2890

Overview
PRELIMINARY DS2890 1-Wire Digital Potentiometer ® www.
dalsemi.
com FEATURES Single element 256-position linear taper potentiometer Supports potentiometer terminal working voltages up to 11V Potentiometer terminal voltage independent of supply voltage Potentiometer wiper position controlled and read over minimal 1-Wire bus interface 100 kΩ resistor element value Provides 1-Wire and VDD power modes Supports Conditional Search based on power-on default wiper position Multiple DS2890’s can be identified on a common 1-Wire bus and operated independently Unique factory lasered 64-bit registration number assures error free device selection and absolute part identity Built-in multi-drop controller ensures compatibility with other 1-Wire Network products Supports Overdrive mode which boosts communication speed up to 142 kbits per second -40oC to +85oC operating temperature range 2.
8V – 6.
0V operating voltage range PIN ASSIGNMENT Top View 6-pin TSOC GND 1-WIRE VDD 1 2 3 6 5 4 RL WIPER RH TO-92 Package 1 2 3 1 2 3 Bottom View Flip Chip Package top view side view Visit www.
dalsemi.
com for Flip Chip pinout and mechanical data.
ORDERING INFORMATION PART NUMBER DS2890-000 DS2890P-000 DS2890X-000 DS2890T-000 RESISTANCE* 100 kΩ 100 kΩ 100 kΩ 100 kΩ PACKAGE DESCRIPTION T0-92 6-pin TSOC Flip Chip Pkg.
, Tape & Reel Tape & Reel of DS2890 DS2890V-000 Tape & Reel of DS2890P 100 kΩ * Contact the factory for availability of alternate resistance values 1 of 27 1-WIRE RH GND 061500 DS2890 PIN DESCRIPTION SIGNAL NAME 1-WIRE TYPE I/O FUNCTION 1-Wire bus interface.
Open drain, requires external pull-up resistor.
Range: 2.
8V – 6.
0V.
See HARDWARE CONFIGURATION for pull-up resistor recommendations.
High end terminal of potentiometer resistor element.
Range: 0V – 11.
0V.
Range independent of 1-Wire or VDD supply levels as well as the voltage levels applied to the other potentiometer terminals.
Low end terminal of potentiometer resistor element.
Range: 0V – 11.
0V.
Range independent o...


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