Advanced Analog Technology, Inc. AAT7205 Details are subject to change without notice. 8+1-CHANNEL BUFFER FOR TFT LCD FEATURES GENERAL DESCRIPTION z 8 Channels with Output Current: ± 30mA (MAX) z 1 Vcom with Output Current: ± 100mA (MAX) z Unity Gain Buffer Capable of Driving Large Capacitive Loads z Input Range Matched to LCD Reference Requirements z Specified for − 20 oC to +85 oC…6.5V to 16V z SSOP-24 Package The AAT7205 is specially designed for thin film transistor liquid crystal display (TFT LCD). It is a buffer with 8+1 channels which delivers output current up to 30mA. This device is equipped with a Vcom buffer circuit, two rail-to-rail buffer amplifier circuits, and 6 buffer amplifiers circuits. Each buffer is capable of driving heavy capacitive loads and offers fast load current ( Vcom : 100mA, the others: 30mA). PIN CONFIGURATION TOP VIEW – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 1 of 10 V 1.0 Advanced Analog Technology, Inc. AAT7205 PIN DESCRIPTION PIN NO. NAME I/O 1 VDD I Power Supply 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 out1 out2 out3 out4 VDD O O O O I O O O O O I I I I I I I I I I I I I Buffer Channel 1 Output Buffer Channel 2 Output Buffer Channel 3 Output Buffer Channel 4 Output Power Supply Buffer Channel 5 Output Buffer Channel 6 Output Buffer Channel 7 Output Buffer Channel 8 Output Com Buffer Output Ground Ground Com Buffer Input Buffer Channel 8 Input Buffer Channel 7 Input Buffer Channel 6 Input Buffer Channel 5 Input Ground Buffer Channel 4 Input Buffer Channel 3 Input Buffer Channel 2 Input Buffer Channel 1 Input Power Supply out5 out6 out7 out8 O com GND GND I com in8 in7 in6 in5 GND in4 in3 in2 in1 VDD DESCRIPTION – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 2 of 10 V 1.0 Advanced Analog Technology, Inc. AAT7205 ABSOLUTE MAXIMUM RATINGS CHARACTERISTICS Supply Voltage SYMBOL VDD VALUE +18 UNIT V Input Voltage VI −0.5 to VDD + 0.5 V Output Voltage VO −0.5 to VDD + 0.5 V ± 30 mA TJ TC ± 100 +125 − 20 to +85 mA o C o C Tstorage − 45 to +125 o --- 260 o Output Loading Current for Gamma Rail-to-Rail Buffer Output Loading Current for Com Buffer Maximum Junction Temperature Operating Temperature Storage Temperature Lead Temperature (Soldering for 10 Seconds) IL C C Note1: Values beyond absolute maximum ratings may cause permanent damage to the device. – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 3 of 10 V 1.0 Advanced Analog Technology, Inc. AAT7205 ELECTRICAL CHARACTTERISTICS (VDD=10V, TC=25oC UNLESS OTHERWISE SPECIFIED) POWER SUPPLY PERFORMANCE PARAMETER TEST CONDITIONS Power Supply Rejection Ratio PSRR MN VDD is Moved from 6.5V to 15.5V IS Supply Current TYP MAX UNITS 80 dB 7.4 mA INPUT CHARACTERISTICS PARAMETER Input Offset Voltage Input Bias Current TEST CONDITIONS MIN TYP MAX UNITS VOS VI = VDD /2, VO = VDD /2 2 12 mV IB VI = VDD /2, VO = VDD /2 2 50 nA – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 4 of 10 V 1.0 Advanced Analog Technology, Inc. AAT7205 ELECTRICAL CHARACTTERISTICS (VDD=10V, TC=25oC UNLESS OTHERWISE SPECIFIED) (CONT.) OUTPUT CHARACTERISTICS PARAMETER Output Swing Low Output Swing High TEST CONDITIONS VOL VOH I L =5mA(Buffer 1,8) VI =0V I L =10mA (Buffer 2,3,4,5,6,7) VI =1V I L = − 5 mA (Buffer 1,8) VI =10V I L = − 10 mA (Buffer 2,3,4,5,6,7) VI =9V VOL I L =10mA VOH I L = − 10 mA Output Swing (COM) VOL VOH Short Circuit Current ISC I L =50mA VI =5V IL= − 50 mA VI =5V (Buffer 2~7 ) (Com Buffer, Buffer1,8) Output Swing (Buffer 2,3,4,5,6,7) MIN TYP MAX UNITS 0.08 0.15 V 1.02 1.05 V 9.85 9.92 V 8.95 8.98 V VI =5V 5.02 VI =5V 4.96 4.95 5.04 4.98 V V 5.03 4.97 ± 70 ± 180 5.05 V V mA mA Typ Max Units AC Characteristics Parameter Test Conditions Min Slew Rate [Note 2] SR VI =2V to 8V, 20% to 80% 1 V/ µs Settling Time ts VI =4.5V to 5.5V VI =5.5V to 4.5V 5 µs 0.1% 0.1% Note 2: Slew rate is measured on rising and falling edges. – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 5 of 10 V 1.0 Advanced Analog Technology, Inc. AAT7205 BLOCK DIAGRAM – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 6 of 10 V 1.0 Advanced Analog Technology, Inc. AAT7205 APPLICATION CIRCUIT 10Ω 1µF 10Ω 1µF 10Ω 1µF 10Ω 1µF 10Ω 1µF 10Ω 10Ω 1µF 1µF 10Ω 1µF 10Ω 1µF – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 7 of 10 V 1.0 Advanced Analog Technology, Inc. AAT7205 PACKAGE DIMENSION SSOP-24 PACKAGE – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 8 of 10 V 1.0 Advanced Analog Technology, Inc. AAT7205 PACKAGE DIMENSION (CONT.) SSOP-24 PACKAGE A DIMENSION IN INCHES MIN TYP MAX 0.053 0.064 0.069 A1 0.004 0.006 0.010 A2 - - 0.060 D 0.336 0.340 0.344 E 0.228 0.236 0.244 E1 0.150 0.154 0.157 b 0.008 - 0.012 C 0.007 - 0.010 SYMBOL e L 0.025 BASIC 0.015 L1 θo 0.025 0.050 Note: 1. JEDEC OUTLINE: MO-137 AE 2. DIMENSION D DOES NOT INCLUDE MOLD PROTRUSIONS OR GATE BURRS. MOLD PROTRUSIONS AND GATE BURRS SHALL NOT EXCEED 0.006” PER SIDE. DIMENSION E1 DOES NOT INCLUDE INTERLEAD MOLD PROTRUSIONS. INTERLEAD MOLD PROTRUSIONS SHALL NOT EXCEED 0.010 o PER SIDE. 3. DIMENSION b DOES NOT INCLUDE DAMBAR PROTRUSION/INTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.004” TOTAL IN EXCESS OF b DIMENSION AT MAXIMUM MATERIAL CONDITION. DAMBAR INTRUSION SHALL NOT REDUCE DIMENSION b BY MORE THAN 0.002 o AT LEAST. 0.041 BASIC 0o - 8o – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 9 of 10 V 1.0 Advanced Analog Technology, Inc. AAT7205 ORDERING INFORMATION – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 10 of 10 V 1.0