MAX5679ETJ+

Video Amps And Modules Overview

The MAX5679ETJ+ is a digitally programmable LCD gamma reference generator with an integrated digital voltage reference. It provides 18 buffered channels for biasing LCD column drivers, comprising 14 outputs of 8-bit programmable gamma reference voltage derived from four externally applied reference voltages, and four buffered outputs of the same externally applied reference voltages. The device features a digitally programmable voltage reference (DVR) with a 7-bit adjustable current sink to set the LCD common backplane (VCOM) voltage. It operates on a 9V to 20V analog supply and a 2V to 5.5V digital supply, utilizing a 400kHz I²C-compatible serial interface.

Video Amps And Modules Feature Summary

• Digitally programmable gamma buffer outputs for precise LCD column driver biasing
• Integrated digital voltage reference with adjustable current sink for VCOM calibration
• I²C serial interface with pin-selectable address bit for multiple slave IDs

Video Amps And Modules Applications

• TFT-LCD panels for desktop monitors
• TFT-LCD panels for flat screen TVs

Video Amps And Modules Procurement Notes

Verify the exact ordering suffix against official Analog Devices documentation to confirm package type and temperature range specifications. Confirm availability status directly with authorized distributors as production status may change. Ensure compatibility with existing system power supplies and I²C bus configurations before procurement.

Video Amps And Modules Selection Notes

Select this component when designing systems requiring precise gamma correction for TFT-LCD displays. Consider the 8-bit resolution of the programmable outputs and the 7-bit DVR adjustment for required display uniformity. Verify that the external reference voltages match the device's input requirements and that the I²C interface aligns with the host controller's capabilities.

Video Amps And Modules Part Context

The MAX5679ETJ+ belongs to the Maxim Integrated family of LCD bias generators. It is backward compatible with the MAX5678, offering similar functionality within a compact 32-pin TQFN package. This series addresses the need for accurate voltage references in high-quality display applications.

Video Amps And Modules Replacement Considerations

The MAX5678 is documented as a backward-compatible alternative. Verify pinout and functional equivalence through official datasheets before substitution.