The ISL24833 is an 18-channel, 10-bit I2C programmable reference voltage generator for TFT-LCDs with dual bank outputs. It also provides an I2C programmable, 1-channel, 8-bit VCOM calibrator with VCOM amplifier and internal EEPROM. The two output banks are capable of switching quickly (<1µs) enabling rapid switching between two gamma curves (or operational modes) in TFT-LCD applications. The ISL24833 also integrates two banks of EEPROM that can store all reference voltage data. The EEPROM is capable of >300 write cycles. Combining gamma and VCOM reference voltage generators with low power operation and EEPROM, the ISL24833 provides a complete reference voltage solution ideal for large area TFT-LCD display applications. The ISL24833 is available in a 32 Ld 5mmx6mm QFN thermally enhanced package. It is specified for operation across the -40°C to +85°C temperature range.


  • 18-channel I2C programmable 10-bit DACs
  • Integrated I2C programmable 8-bit VCOM calibrator
  • One VCOM op amp
  • Two banks of EEPROM storage (rewriteable >300 times)
  • Fast output bank switching: <1µs typical
  • Analog supply: 12V to 18V at 15mA (unloaded)
  • Digital supply: 2.5V to 3.3V at 1.3mA (unloaded)
  • I2C serial interface
  • Pb-free (RoHS compliant)


  • TFT-LCD Column Driver Reference Generator
  • TFT-LCD VCOM Calibrator and Driver
  • General-Purpose Reference Voltage Generators

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active QFN Tube 60
Active QFN Reel 2500


Title language Type Format File Size Date
Datasheets & Errata
ISL24833 Datasheet Datasheet PDF 917 KB
ISL24833 Data Short Short Form Datasheet PDF 199 KB
Application Notes & White Papers
AN1993: Voltage Feedback versus Current Feedback Operational Amplifiers Application Note PDF 564 KB
AN1694: The Four Basic Building Blocks of an Op Amp Application Note PDF 357 KB
PCN12084 - Manufacturing Site Change for the Listed Intersil Products - Carsem (CAS) Ipoh Malaysia Product Change Notice PDF 135 KB
PCN10087 - Data Sheet Specification Change for Intersil Product ISL24833* Product Change Notice PDF 30 KB
PA14042 - Minimum Line Quantity Change Product Advisory PDF 363 KB