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DS3503

Maxim
Part Number DS3503
Manufacturer Maxim
Description Stepper Potentiometer
Published Dec 11, 2013
Detailed Description Rev 1; 3/09 NV, I2C, Stepper Potentiometer General Description The DS3503 features two synchronized stepping digital po...
Datasheet PDF File DS3503 PDF File

DS3503
DS3503

Overview
Rev 1; 3/09 NV, I2C, Stepper Potentiometer General Description The DS3503 features two synchronized stepping digital potentiometers: one 7-bit potentiometer with RW as its output, and another potentiometer with Y as its output.
Both potentiometers reference the RH and RL terminals and feature an output voltage range of up to 15.
5V.
In addition, both potentiometer outputs can be stepped up and down by configuring the control registers.
Programming is accomplished by an I2C-compatible interface that can operate at speeds of up to 400kHz.
Features ♦ 128 Wiper Tap Points ♦ Full-Scale Resistance: 5kΩ ♦ Programmable Logic Lets WR Step Up and Down with Timing Controlled by SYNC Input ♦ Second Potentiometer Output Pin (Y) Centered at Position 40h ♦ I2C-Compatible Serial Interface ♦ Digital Operating Voltage: 2.
7V to 3.
6V ♦ Analog Operating Voltage: 4.
5V to 15.
5V ♦ Operating Temperature: -40°C to +100°C ♦ 10-Pin µSOP Package DS3503 Applications TFT-LCD VCOM Calibration Instrumentation and Industrial Controls Mechanical Potentiometer Replacement Pin Configuration TOP VIEW SDA GND VCC SYNC Y 1 2 3 4 5 DS3503 10 9 8 7 6 SCL V+ RL RW RH Ordering Information PART DS3503U+ DS3503U+T&R TEMP RANGE -40°C to +100°C -40°C to +100°C PIN-PACKAGE 10 μSOP 10 μSOP +Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
Typical Operating Circuit appears at end of data sheet.
μSOP Functional Diagram WR+STEPCOUNT I2C WR BUS IVR EEPROM ADDRESS I2C RD BUS COUNT V+ VCC GND PERIOD (2 BITS) STEP COUNT (2 BITS) SYNC STEP CONTROL REGISTER STEP COUNTER AND CONTROL LOGIC MUX I O WR REGISTER ADDRESS RH 1 LSB WR 7-BIT POT RW PERIOD RL RH 1 LSB CODE 64 (40h) 7-BIT POT Y CODE 64 (40h) SCL SDA SCL SDA OUT I2C LOGIC WR-STEPCOUNT CODE 64 (40h) + STEPCOUNT DS3503 RL PERIOD CODE 64 (40h) - STEPCOUNT ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-62...


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