MAX749 Datasheet - Maxim

MAX749 Digitally Adjustable LCD Bias Supply

The MAX749 generates negative LCD-bias contrast voltages from 2V to 6V inputs. Full-scale output voltage can be scaled to -100V or greater, and is digitally adjustable in 64 equal steps by an internal digital-toanalog converter (DAC). Only seven small surfacemount components are required to build a .

MAX749 Features

* o +2.0V to +6.0V Input Voltage Range o Flexible Control of Output Voltage: Digital Control Potentiometer Adjustment PWM Control o Output Voltage Range Set by One Resistor o Low, 60µA Max Quiescent Current o 15µA Max Shutdown Mode o Small Size

* 8-Pin SO and Plastic DIP Packages MAX749 ____

MAX749_MaximIntegratedProducts.pdf