ISL24837A

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Programmable TFT-LCD VREF Generator

Product Status: Mass Production

OVERVIEW

The ISL24837A contains a programmable 10-bit, 8-channel gamma DAC generator, a programmable 10-bit, 4-channel level shifter reference generator with external gain control, a trimmed bandgap voltage reference, and a digitally-controlled VCOM calibrator.

KEY FEATURES

  • 8 Programmable 10-bit Gamma Voltages with Bandgap-Trimmed Reference
  • 4-Channel, 10-bit Programmable Amps with Feedback Inputs for Level Shifter Reference Voltages
  • Integrated Programmable VCOM Calibrator
  • 1 VCOM Op Amp
  • 2 Banks of EEPROM Storage, Rewriteable >300 Times
  • 10-bit Resolution on all DACs
  • 20ms DAC Loading Time at Power-On
  • Analog Supply: 12V to 18V @ 15mA (Unloaded)
  • Digital Supply: 2.5V to 3.3V @ 1mA (Unloaded)
  • I2C Interface
  • Pb-free (RoHS Compliant)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL24837A
Basic Information
Production Status
Mass Production
# of Devices/ Channels
8
Supply Voltage Vs Range (V)
10.8 to 19
Bus/Output Interface
I2C
Bus Interface Speed
0.4 MHz
Rail-to-Rail
Out
IS
15 mA
Qualification Level
Standard
Temperature Range
-40 to +85

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