RT9136 Rail-to-Rail Quad Unity-Gain Operational Amplifier General Description Features The RT9136 consists of low cost, high slew rates, singlesupply rail-to-rail input and output operation amplifiers. The RT9136 contains four amplifiers in one package. z Rail-to-Rail Output Swing z Unity gain buffer Supply Voltage : 4.5V to 16.5V Continuous Output Current : 35mA Peak Output Current : 120mA High Slew Rate : 12V/μ μs RoHS Compliant and 100% Lead (Pb)-Free Operating on supplies ranging from 4.5V to 16.5V, while consuming only 500μA per channel, the RT9136 has high slew rates (12V/μs), 35mA continuous output current, 120mA peak output current and offset voltage below 10mV. The RT9136 is ideal for Thin Film Transistor Liquid Crystal Displays (TFT-LCD). GAMMA Buffer or repair circuit. The RT9136 is available in MSOP-10 package and is specified for operation over the full −40°C to 85°C temperature range. Ordering Information z z z z z Applications z z z TFT-LCD Gamma / VCOM Buffer Portable Electronic Product Communications Product Pin Configurations (TOP VIEW) RT9136 Package Type F : MSOP-10 VOUTA VINA VS+ VINB VOUTB Lead Plating System P : Pb Free G : Green (Halogen Free and Pb Free) Z : ECO (Ecological Element with Halogen Free and Pb free) 10 2 9 3 8 4 7 5 6 VOUTD VIND VSVINC VOUTC MSOP-10 Note : Richtek products are : ` RoHS compliant and compatible with the current require- Marking Information RT9136PF ments of IPC/JEDEC J-STD-020. ` Suitable for use in SnPb or Pb-free soldering processes. AB- : Product Code AB-YM DNN YMDNN : Date Code RT9136GF AB= : Product Code AB=YM DNN YMDNN : Date Code RT9136ZF AB : Product Code AB YM DNN DS9136-03 June 2011 YMDNN : Date Code www.richtek.com 1 RT9136 Function Block Diagram VOUTA VINA VOUTD - - + + + + - - VS+ VINB VIND VS- VOUTB VINC VOUTC Functional Pin Description Pin No. Pin Name Pin Function 1 VOUTA Amplifier A Output. 2 VINA Amplifier A Input. 3 VS+ Positive Power Supply. 4 VINB Amplifier B Input. 5 VOUTB Amplifier B Output. 6 VOUTC Amplifier C Output. 7 VINC Amplifier C Input. 8 VS- Negative Power Supply. 9 VIND Amplifier D Input. 10 VOUTD Amplifier D Output. www.richtek.com 2 DS9136-03 June 2011 RT9136 Absolute Maximum Ratings z z z z z z z z z (Note 1) Supply Voltage between VS+ and VS- -------------------------------------------------------------------------- 18V Input Voltage ---------------------------------------------------------------------------------------------------------- −0.5V to Vs+0.5V Differential Input Voltage -------------------------------------------------------------------------------------------- VS Power Dissipation, PD @ TA = 25°C MSOP-10 -------------------------------------------------------------------------------------------------------------- 833mW Package Thermal Resistance (Note 2) MSOP-10, θJA -------------------------------------------------------------------------------------------------------- 120°C/W Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------- 260°C Junction Temperature ----------------------------------------------------------------------------------------------- 150°C Storage Temperature Range --------------------------------------------------------------------------------------- −65°C to +150°C ESD Susceptibility (Note 3) HBM (Human Body Mode) ----------------------------------------------------------------------------------------- 2kV MM (Machine Mode) ------------------------------------------------------------------------------------------------ 200V Recommended Operating Conditions z z (Note 4) Junction Temperature Range -------------------------------------------------------------------------------------- −40°C to 125°C Ambient Temperature Range ------------------------------------------------------------------------------------- −40°C to 85°C Electrical Characteristics (VS+ = 5V, VS- = −5V, RL = 10kΩ and CL = 10pF, TA =25°C, unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Input Characteristics Input Offset Voltage VOS VCM = 0 -- 2 15 mV Average Offset Voltage Drift Input Bias Current ΔVOS/ΔT IB −40°C≦TA≦85°C VCM = 0 --- 5 2 -50 μV/°C nA Input Impedance RIN -- 1 -- GΩ Input Capacitance CIN -- 1.35 -- pF Open-Loop Gain AVOL −4.5V≦VOUT≦4.5V 75 95 -- dB Output swing Low Output swing High VOL VOH IL = −5mA IL = 5mA -4.85 −4.92 4.92 −4.85 -- V V Short Circuit current ISCC -- ±120 -- mA 4.5 -- 16.5 V Output Characteristics Power Supply Supply Voltage (Note 5) Power Supply Rejection Ratio Supply Current/Amplifier VS PSRR ISY VS is moved from ±2.25V to ±7.75V No Load 60 -- 70 500 -750 dB μA SR −4V≦VOUT≦4V, 20% to 80% -- 12 -- V/μs Setting to ±0.1% (AV = 1) tS (AV = 1), VOUT = 2V step -- 500 -- ns −3dB Bandwidth BW RL = 10kΩ, C L = 10 pF -- 12 -- MHz Channel Separation CS f = 5MHz -- 75 -- dB Dynamic Performance Slew Rate (Note 6) DS9136-03 June 2011 www.richtek.com 3 RT9136 (VS+ = 2.5V, VS− = −2.5V, RL = 10kΩ and CL = 10pF, TA =25°C, unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Input Characteristics Input Offset Voltage VOS VCM = 0V -- 2 15 mV Average Offset Voltage Drift ΔVOS/ΔT −40°C≦TA≦85°C -- 5 -- μV/°C Input Bias Current IB VCM = 0V -- 2 50 nA Input Impedance RIN -- 1 -- GΩ Input Capacitance CIN -- 1.35 -- pF Open-Loop Gain AVOL 0.5V≦VOUT ≦+4.5V 75 95 -- dB Output swing Low VOL IL = -5mA -- −2.42 −2.35 V Output swing High VOH IL = 5mA 2.35 2.42 -- V Short Circuit Current ISCC -- ±90 -- mA Output Characteristics Power Supply Power Supply Rejection Ratio PSRR VS is moved from ±2.25V to ±7.75V 50 70 -- dB Supply Current/Amplifier ISY No Load -- 500 750 μA SR −4V≦VOUT≦4V, 20% to 80% -- 12 -- V/μs Setting to ±0.1% (AV = 1) tS (AV = 1), VOUT = 2V step -- 500 -- ns −3dB Bandwidth BW RL = 10kΩ, CL =10 pF -- 12 -- MHz Channel Separation CS f = 5MHz -- 75 -- dB Dynamic Performance Slew Rate (Note 6) www.richtek.com 4 DS9136-03 June 2011 RT9136 (VS+ = 7.5V, VS- = −7.5V, RL = 10kΩ and CL = 10pF, TA =25°C, unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Input Characteristics Input Offset Voltage VOS VCM = 0V -- 2 21 mV Average Offset Voltage Drift ΔVOS/ΔT −40°C≦TA≦85°C -- 5 -- μV/°C Input Bias Current IB VCM = 0V -- 2 50 nA Input Impedance RIN -- 1 -- GΩ Input Capacitance CIN -- 1.35 -- pF Open-Loop Gain AVOL 0.5V≦VOUT ≦4.5V 75 95 -- dB Output swing Low VOL IL = -5mA -- −4.92 −4.85 V Output swing High VOH IL = 5mA 4.85 4.92 -- V Short Circuit Current ISCC -- ±150 -- mA Output Characteristics Power Supply Power Supply Rejection Ratio PSRR VS is moved from ±2.25V to ±7.75V 50 70 -- dB Supply Current/Amplifier ISY No Load -- 500 850 μA SR −4V≦VOUT≦4V, 20% to 80% -- 20 -- V/μs Setting to ±0.1% (AV = 1) tS (AV = 1), VOUT = 2V step -- 500 -- ns −3dB Bandwidth BW RL = 10kΩ, CL =10 pF -- 12 -- MHz Channel Separation CS f = 5MHz -- 75 -- dB Dynamic Performance Slew Rate (Note 6) Note 1. Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may remain possibility to affect device reliability. Note 2. θJA is measured in the natural convection at TA = 25°C on a high effective thermal conductivity test board (4-Layers, 2S2P) of JEDEC 51-7 thermal measurement standard. Note 3. Devices are ESD sensitive. Handling precaution is recommended. Note 4. The device is not guaranteed to function outside its operating conditions. Note 5. 16.5V is the correct allowable aging voltage; however, full electrical characteristics are specified with a single nominal supply voltage from 5V to 15V or a split supply with its total range from 5V to 15V. Note 6. Slew rate is measured on rising and falling edges. DS9136-03 June 2011 www.richtek.com 5 RT9136 Typical Operating Characteristics Quiescent Current vs. Supply Voltage Quiescent Current vs. Temperature 0.56 VS = ±5V 0.54 0.5 Quiescent current (mA) Quiescent Current (mA) 0.52 0.48 0.46 0.44 0.42 0.52 0.50 0.48 0.46 0.44 0.42 0.4 0.40 4 5 6 7 8 9 10 11 12 13 14 15 -50 -30 -10 Output High Voltage vs. Temperature 70 90 110 130 150 Output Low Voltage vs. Temperature 4.94 4.92 4.90 4.88 4.86 4.84 VS = ±5V IOUT = −5mA -4.885 Output Low Voltage (V) Output High Voltage (V) 4.96 4.82 -4.890 -4.895 -4.900 -4.905 -4.910 -4.915 -4.920 -4.925 4.80 -4.930 -50 -30 -10 10 30 50 70 90 110 130 150 -50 -30 -10 Temperature (°C) 5 Magnitude (Normalized) (dB) VS = ±5V 12 11.5 11 10.5 10 9.5 9 -30 -10 10 30 50 70 90 Temperature (°C) www.richtek.com 6 30 50 70 90 110 130 150 Frequency Response for Various RL Slew Rate vs. Temperature -50 10 Temperature (°C) 12.5 Slew Rate (V/μs) 50 -4.880 VS = ±5V IOUT = 5mA 4.98 30 Temperature (°C) Supply Voltage (V) 5.00 10 110 130 150 VS = ±5V CL = 10pF AV = 1 RL = 10kΩ 0 RL = 1kΩ RL = 560Ω -5 RL = 150Ω -10 -15 100k 100000 1M 1000000 10M 10000000 100M 100000000 Frequency (Hz) DS9136-03 June 2011 RT9136 10 PSRR vs. Frequency Frequency Response for Various CL 80 VS = ±5V RL = 10kΩ AV = 1 CL = 12pF 0 CL = 50pF CL = 1000pF -10 CL = 100pF -20 20 0 -40 1M 1000000 10M 10000000 PSRR- 40 -20 -30 100k 100000 PSRR+ 60 PSRR (dB) Magnitude (Normalized) (dB) 20 100M 100000 VS = ±5V TA = 25°C 100 1000 1k 10000 10k 100000 100k 1000000 1M Frequency (Hz) Frequency (Hz) Slew Transient Response Slew Transient Response VS : ±5V AV : 1 VS : ±5V AV : 1 (1V/Div) V+ VOUT (2V/Div) VOUT (1V/Div) (2V/Div) V+ Time (250ns/Div) Time (250ns/Div) Small Signal Transient Response Large Signal Transient Response VS : ±5V AV : 1 VS : ±7V AV : 1 V+ V+ VOUT (100mV/Div) (2V/Div) (2V/Div) VOUT Time (1μs/Div) DS9136-03 June 2011 (100mV/Div) Time (250ns/Div) www.richtek.com 7 RT9136 Channel Separation vs. Frequency Response CMRR vs. Frequency -40 80 70 -50 Channel Separation 60 CMRR 50 40 30 20 10 1k 1000 10k 10000 100k 100000 Frequency (Hz) www.richtek.com 8 -60 -70 -80 -90 VS = ±5V TA = 25°C 0 100 100 Quad measured channel A to C. VS : ±5V AV : 1 1M 10M 1000000 10000000 -100 1000 10000 10k 100000 100k 1000000 1M 10000000 10M Frequency Response (Hz) DS9136-03 June 2011 RT9136 Applications Information The RT9136 is specified with a single nominal supply voltage from 5V to 15V or a split supply with its total range from 5V to 15V. Correct operation is guaranteed for a supply range of 4.5V to 16.5V. RT9136 specifications are stable over both the full supply range and operating temperatures of −40°C to 85°C . Parameter variations with operating voltage and/or temperature are shown in the typical performance curves. The output swing of the RT9136 typically extends to within 80mV of positive/negative supply rails with 5mA load current source/sink. Decreasing the load current will get output swing even closer to the supply rails. Figure 1 shows the rail-to-rail input and output waveforms in the unit gain configuration without load current. The supply rails are ±5V. Applying an input 10Vp_p sinusoidal waveform results in a 9.8Vp_p output voltage as shown in Figure 1. Short Circuit Condition An internal short-circuit protection circuit is implemented to protect the device from output short circuit. The RT9136 limits the short circuit current to ±120mA if the output is directly shorted to positive/negative supply rails. For reliability, the continuous output current more than ±35mA is not recommended. The RT9136 is mainly designed for LCD gamma and V-com buffer. OP Amplifier-C has 120mA instantaneous source/sink peak current. To test the performance of the RT9136 for LCD driving capability, the test circuit is to simulate the V-com driver as shown Figure 2. Series capacitors and resistors connected to the output of the OP simulate the load of LCD panel. The 300Ω and 3kΩ feedback resistors are used to improve the settling time. This circuit is the worst case for a V-com buffer. Figure 3 shows the waveforms of the output peak current capability. Input Voltage (5V/Div) Operating Voltage LCD Panel Applications Output Voltage (5V/Div) The RT9136 packaged in quad operational amplifiers has high performance to drive large load for different application. High slew rates, rail-to-rail input and output capability and low power consumption are the features to make the RT9136 ideal for LCD applications. The RT9136 also has wide bandwidth and phase margin to drive a load of 10kΩ and 10pF. Time (250μs/Div) Figure 1. Operation with Rail-to-Rail Input and Output 300 8V 3k 4V + 10 Output Current Test Point 10 10nF 10 10 10nF 10nF 10 V IN 0V to 8V Square Wave Unused Amplifier If the amplifier is unused. It is recommended to connect the positive input to ground and keep the output pin as open. DS9136-03 June 2011 10nF Figure 2. V-com Test Circuit www.richtek.com 9 Output Current (100mA/Div) Input Voltage (5V/Div) RT9136 Time (2.5μs/Div) Figure 3. Scope Photo of the V-com Peak Current www.richtek.com 10 DS9136-03 June 2011 RT9136 Outline Dimension D L E1 E e A2 A A1 b Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Max A 0.810 1.100 0.032 0.043 A1 0.000 0.150 0.000 0.006 A2 0.750 0.950 0.030 0.037 b 0.170 0.270 0.007 0.011 D 2.900 3.100 0.114 0.122 e 0.500 0.020 E 4.800 5.000 0.189 0.197 E1 2.900 3.100 0.114 0.122 L 0.400 0.800 0.016 0.031 10-Lead MSOP Plastic Package Richtek Technology Corporation Richtek Technology Corporation Headquarter Taipei Office (Marketing) 5F, No. 20, Taiyuen Street, Chupei City 5F, No. 95, Minchiuan Road, Hsintien City Hsinchu, Taiwan, R.O.C. Taipei County, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 Tel: (8862)86672399 Fax: (8862)86672377 Email: [email protected] Information that is provided by Richtek Technology Corporation is believed to be accurate and reliable. Richtek reserves the right to make any change in circuit design, specification or other related things if necessary without notice at any time. No third party intellectual property infringement of the applications should be guaranteed by users when integrating Richtek products into any application. No legal responsibility for any said applications is assumed by Richtek. DS9136-03 June 2011 www.richtek.com 11