AD8511

9- and 11-Channel, Muxed Input LCD Reference Buffers AD8509/AD8511 FEATURES Single-supply operation: 3.3 V to 6.5 V High output current: 300 mA Low supply current: 6 mA Stable with 1000 pF loads Pin compatible with LMC6009 Pin compatible with CL-FP6131 48-lead, Pb-free TSSOP/LFCSP packages APPLICATION LCD line inversion gamma references GENERAL DESCRIPTION The AD8509 and AD8511 are 9-channel and 11-channel LCD reference buffers, respectively, designed to drive 64 gray scale column drivers. Each buffer has an A/B input to select between two voltages for LCD displays. These buffers drive the resistor ladders of LCD column drivers for gamma correction. The LCD drivers have higher slew rates and higher output drive currents than similar competitive parts. This increases the stability of the reference ladder, resulting in better gray scale and visual performance. The AD8509 and AD8511 are specified over the −40°C to +85°C temperature range. They are available in 48-lead, Pb-free TSSOP packages in tape and reel. Additionally, the ADD8511 is available in a 48-lead, Pb-free LFCSP package. PIN CONFIGURATIONS NC 1 NC 2 NC 3 INA1 4 INB1 5 INA2 6 INB2 7 INA3 8 INB3 9 INA4 10 INB4 11 INA5 12 INB5 13 INA6 14 INB6 15 INA7 16 INB7 17 INA8 18 INB8 19 INA9 20 INB9 21 NC 22 NC 23 NC 24 AD8509 TOP VIEW (Not to Scale) 48 NC 47 NC 46 NC 45 NC 44 VCC 43 GND 42 VO1 41 VO2 40 VO3 39 VO4 38 VCC 37 GND 36 VO5 35 VO6 34 VO7 33 VO8 32 VO9 31 GND 30 VCC 29 A/B 28 NC 27 NC 26 NC 25 NC NC 1 INA1 2 INB...