ADD8502

Features:

Two Mask Programmable Sets of Five Reference Levels
Dual 10-Bit DACs for Flicker Offset and Range Adjustment
Integrated V_COM Switching
Single-Supply Operation: 5.0 V
CMOS/TTL Input Levels




Application

Color TFT Cell Phones
Color TFT PDAs




Pinout








Specifications

V_DD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +7 V
V_L to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +7 V
Digital Input Voltage to GND . . . . . . . . . . . . . 0.3 V to +7 V
VOUT to GND . . . . . . . . . . . . . . . . . . . .0.3 V to V_DD +0.3 V
VCOM to GND . . . . . . . . . . . . . . . . . . . .0.3 V to V_DD +0.3 V
Storage Temperature Range . . . . . . . . . . 65°C to +150°C
Lead Temperature Range (Soldering, 10 sec)
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . 300°C




Description

The ADD8502 is an integrated, high accuracy, programmable grayscale generator. Two sets of five output reference voltages are mask programmed to 0.2% resolution. The outputs switch between the two sets of five levels. The reference levels are selected from a 512 tap resistor network using a via mask.

ADD8502 includes two serially addressable, 10-bit digital-to-analog converters (DACs) and five fast, low current buffers.The dual DACs set the endpoint voltages applied to the resistor network to adjust for flicker and range. The two power save modes can reduce the total current to less than 1 µA and feature fast recovery time from Shutdown/Sleep Mode. The ADD8502 accepts CMOS or TTL inputs for all controls, including the common drive circuit levels.