DS3503:NV, I²C, Stepper Potentiometer

Low-Cost VCOM Calibrator with Anti-Image-Stick Features

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.

Key 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: Typical Operating Circuit
DS3503: Typical Operating Circuit
  • Instrumentation and Industrial Controls
  • Mechanical Potentiometer Replacement
  • TFT-LCD VCOM Calibration
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DS3503 Data SheetDS3503.pdf
Part NumberPrimary TopologyMonitor/Control FeaturesLCD/LED/Flash/CCD FeaturesInterface TypeVIN
minmaxSee Notes
DS3503Amplifier/BufferDynamic V Adj.VCOM BufferGPIO2.75.5µMAX/10$0.64 @1k

Part NumberChannelsPeak Current
Rail to RailBandwidth
Oper. Temp.
See Notes
DS3503237Input/Output1Yes4.5 to 15.5-40 to +85
-40 to +100
µMAX/10$0.64 @1k
Quality and Environmental Data
Related Products
  • DS3508:I²C, 8-Channel Gamma Buffer with EEPROM
  • DS3502:High-Voltage NV I²C Potentiometer
  • DS3501:High-Voltage NV I²C Potentiometer with Temperature Sensor and LUT
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
DS3503U+ActiveµMAX,;10 pin;15.4 mm²0°C to +70°CLead Free
DS3503U+T&RActiveµMAX,;10 pin;15.4 mm²0°C to +70°CLead Free
DS3503.pdf DS3503
DS3503.pdf DS3503
DS3503.pdf DS3503
DS3503.pdf DS3503
DS3503.pdf DS3503