The ISL76534 is a programmable gamma buffer for TFT-LCDs featuring ultra-low power operation. The ISL76534 contains an I2C programmable, 10-bit, 14-channel gamma reference voltage generator with buffered outputs, a 10-bit programmable VCOM calibrator, a high output current VCOM amplifier, and internal EEPROM to store all reference voltage data. The EEPROM features an endurance of 10, 000 write cycles and a data retention of 20 years at 105 °C. Combining gamma and VCOM reference voltage generators with low power operation and EEPROM, the ISL76534 provides a complete reference voltage solution ideal for TFT-LCD displays. The ISL76534 is available in a super thin (height = 0.4mm maximum) 28 Ld 4mmx5mm X2QFN thermally enhanced package. The device is specified for operation across the ambient temperature range of -40 °C to +105 °C.


  • 14-channel gamma references, 10-bit resolution with buffered outputs
  • 1-channel VCOM calibrator with 10-bit resolution
  • High output current VCOM amplifier
  • Ultra-low power operation, ideal for automotive displays: Typical quiescent power, 12mW at 8V AVDD
  • EEPROM data retention: 20 years at 105 °C
  • EEPROM endurance: 10,000 write cycles
  • Read/write capable over 2.25V to 3.6V DVDD range
  • 6.3V to 19V analog supply operating range
  • 2.25V to 3.6V digital supply operating range
  • Power Supply Rejection Ratio (PSRR): 75dB typical
  • 28 Ld 4mmx5mm super thin X2QFN package
  • Pb-free (RoHS compliant)
  • AEC-Q100 qualified




Type Title Date
Datasheet PDF 1.27 MB
Training PDF 258 KB
Training PDF 325 KB
Product Advisory PDF 414 KB
Application Note PDF 564 KB
White Paper PDF 549 KB
Application Note PDF 357 KB
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