RT9133BPB

Preliminary RT9133A/B Rail-to-Rail Operational Amplifier General Description The RT9133A/B consist low cost, high slew rates, singlesupply rail-to-rail input and output operation amplifiers. The RT9133A contains a single amplifier and RT9133B contains two amplifiers. The RT9133A/B have high slew rates (12V/us), 35mA continuous output current, 120mA peak output current and offset voltage below 10mV. The RT9133A/B are ideal for Thin Film Transistor Liquid Crystal Displays (TFT-LCD). The RT9133A is available in SOT-23-5 and WDFN-6L 2x2 packages. The RT9133B is available in MSOP-8 package. The RT9133A/B are specified for operation over the full −40°C to +85°C temperature range. Features Rail-to-Rail Output Swing Supply Voltage : 4.5V to 15V Continuous Output Current : 35mA Peak Output Current : 120mA High Slew Rate : 12V/μs Offset Voltage : 10mV RoHS Compliant and 100% Lead (Pb)-Free Applications TFT-LCD Gamma / VCOM Buffer Portable Electronic Product Communications Product Ordering Information RT9133A/B Package Type QW : WDFN-6L 2x2 (Single only) B : SOT-23-5 (Single only) F : MSOP-8 (Dual only) Operating Temperature Range P : Pb Free with Commercial Standard G : Green (Halogen Free with Commercial Standard) A : Single Amplifier B : Dual Amplifier Pin Configurations (TOP VIEW) VS+ 5 1 2 VIN4 3 VOUT VS- VIN+ SOT-23-5 Note : Richtek Pb-free and Green products are : RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. 100% matte tin (Sn) plating. VOUTA VINAVINA+ VS8 2 3 4 7 6 5 VSNC VS+ 1 2 3 7 6 5 4 VIN+ VINVOUT WDFN-6L 2x2 Marking Information For marking information, contact our sales representative directly or through a Richtek distributor located in your area, otherwise visit our website for detail. VS+ VOUTB VINBVINB+ MSOP-8 DS9133A/B-04 August 2007 www.richtek.com 1 RT9133A/B Function Block Diagram Preliminary VS+ VINVIN+ + VOUTA VINAVINA+ VS+ + VOUTB VINBVINB+ VS+ VOUT VS- RT9133A RT9133B Functional Pin Description Single Pin No. SOT-23-5 1 -2 3 4 5 WDFN-6L 2x2 4 2, Exposed Pad (7) 1 6 5 3 Pin Name VOUT NC VSVIN+ VINVS+ Pin Function Amplifier Output. No Internal Connection. Negative Power Supply. Amplifier Non-Inverting Input. Amplifier Inverting Input. Positive Power Supply. Dual Pin No. 1 2 3 4 5 6 7 8 Pin Name VOUTA VINAVINA+ VSVINB+ VINBVOUTB VS+ Pin Function Amplifier A Output. Amplifier A Inverting Input. Amplifier A Non-Inverting Input. Negative Power Supply. Amplifier B Non-Inverting Input. Amplifier B Inverting Input. Amplifier B Output. Positive Power Supply. www.richtek.com 2 DS9133A/B-04 August 2007 Preliminary Absolute Maximum Ratings (Note 1) RT9133A/B Supply Voltage --------------------------------------------------------------------------------------------------------- 17V Power Dissipation, PD @ TA = 25°C SOT-23-5 ---------------------------------------------------------------------------------------------------------------- 500mW WDFN-6L 2x2 ---------------------------------------------------------------------------------------------------------- 758mW MSOP-8 ----------------------------------------------------------------------------------------------------------------- 781mW Package Thermal Resistance (Note 4) SOT-23-5, θJA ----------------------------------------------------------------------------------------------------------- 250°C/W WDFN-6L 2x2, θJA ----------------------------------------------------------------------------------------------------- 165°C/W MSOP-8, θJA ------------------------------------------------------------------------------------------------------------ 160°C/W Differential Input Voltage --------------------------------------------------------------------------------------------- VS Lead Temperature (Soldering, 10 sec.) --------------------------------------------------------------------------- 260°C Storage Temperature Range ---------------------------------------------------------------------------------------- −65°C to +150°C ESD Susceptibility (Note 2) HBM (Human Body Mode) ------------------------------------------------------------------------------------------ 2kV MM (Machine Mode) -------------------------------------------------------------------------------------------------- 200V Recommended Operating Conditions (Note 3) Input Voltage ------------------------------------------------------------------------------------------------------------ −0.5V to Vs+0.5V Junction Temperature Range ---------------------------------------------------------------------------------------- −65°C to +150°C Ambient Temperature Range ---------------------------------------------------------------------------------------- −40°C to +85°C 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. Devices are ESD sensitive. Handling precaution recommended. Note 3. The device is not guaranteed to function outside its operating conditions. Note 4. θJA is measured in the natural convection at TA = 25°C on a low effective thermal conductivity test board (single layer, 1S) of JEDEC 51-3 thermal measurement standard. DS9133A/B-04 August 2007 www.richtek.com 3 RT9133A/B Electrical Characteristics Preliminary (VS+=+5V, VS- = -5V, RL = 10kΩ and CL = 10pF to 0V, TA =25°C, unless otherwise specified) Parameter Input Characteristics Input Offset Voltage Average Offset Voltage Drift Input Bias Current Input Impedance Input Capacitance Common-Mode Input Range Common-Mode Rejection Ratio Open-Loop Gain Output Characteristics Output swing Low Output swing High Continuous VCOM Buffer Output current Peak VCOM Buffer Output current Power Supply Supply Voltage Power Supply Rejection Ratio Supply Current/Amplifier Dynamic Performance Slew Rate(Note) Setting to ±0.1% (AV=+1) -3dB Bandwidth Gain-Bandwidth Product Phase Margin Channel Separation Symbol Test Conditions Min Typ Max Units VOS VCM = 0 ------5.5 2 5 2 1 1.35 -80 95 15 -50 --+5.5 --- mV uV/°C nA GΩ pF V dB dB ΔVOS/ΔT -40°C≦TA≦85°C IB RIN CIN CMIR CMRR AVOL VOL VOH IOC IPC For VIN from –5.5V to +5.5V -4.5V≦VOUT≦+4.5V IL = -5mA I L = +5mA VCM = 0 50 75 -4.85 --- -4.92 4.92 ±35 ±120 -4.85 ---- V V mA mA VS PSRR ISY SR tS BW GBWP PM CS VS is moved from ±2.25V to ±7.75V No Load 4.5 60 -- -70 500 15 -750 V dB uA -4.0V≦VOUT≦+4.0V, 20% to 80% (AV = +1), VOUT = 2V step RL = 10kΩ, CL =10 pF RL = 10kΩ, CL =10 pF RL = 10kΩ, CL =10 pF f = 5MHz ------- 12 500 12 5 50 75 ------- V/us ns MHz MHz ° dB Note: Slew rate is measured on rising and falling edges. www.richtek.com 4 DS9133A/B-04 August 2007 Preliminary (VS+=+2.5V, VS- = -2.5V, RL = 10kΩ and CL = 10pF to 2.5V, TA =25°C, unless otherwise specified) RT9133A/B Min Typ Max Units Parameter Input Characteristics Input Offset Voltage Average Offset Voltage Drift Input Bias Current Input Impedance Input Capacitance Common-Mode Input Range Common-Mode Rejection Ratio Open-Loop Gain Output Characteristics Output swing Low Output swing High Continuous VCOM Buffer Output current Peak VCOM Buffer Output current Power Supply Power Supply Rejection Ratio Supply Current/Amplifier Dynamic Performance Slew Rate(Note) Setting to ±0.1% (AV = +1) -3dB Bandwidth Gain-Bandwidth Product Phase Margin Channel Separation Symbol Test Conditions VOS VCM = 2.5V ------0.5 2 5 2 1 1.35 -65 95 15 -50 --+5.5 --- mV uV/°C nA GΩ pF V dB dB ΔVOS/ΔT −40°C≦TA≦ 85°C IB RIN CIN CMIR CMRR AVOL For VIN from –0.5V to +5.5V 0.5V≦VOUT≦+4.5V VCM = 2.5V 45 75 VOL VOH IOC IPC IL = -5mA IL = +5mA -2.35 --- -2.42 2.42 ±35 ±90 -2.35 ---- mV V mA mA PSRR ISY VS is moved from ±2.25V to ±7.75V No Load 45 -- 70 500 -750 dB uA SR tS BW GBWP PM CS −4V≦VOUT≦+4V, 20% to 80% (AV = +1), VOUT = 2V step RL = 10kΩ, CL =10 pF RL = 10kΩ, CL =10 pF RL = 10kΩ, CL =10 pF f = 5MHz ------- 12 500 12 5 50 75 ------- V/us ns MHz MHz ° dB Note: Slew rate is measured on rising and falling edges. DS9133A/B-04 August 2007 www.richtek.com 5 RT9133A/B Preliminary Typical Operating Characteristics Quescent Current vs. Supply Voltage 0.52 0.5 Quisient current vs. Temperature 0.56 0.54 TA = 25°C VS = ±5V Quescent Current (mA) Quisient current (mA) 4 5 6 7 8 9 10 11 12 13 14 15 0.52 0.5 0.48 0.46 0.44 0.42 0.4 -50 -30 -10 10 30 50 70 90 110 130 150 0.48 0.46 0.44 0.42 0.4 Supply Voltage (V) Temperature (°C) Output High Voltage vs. Temperature 5 4.98 Output Low Voltage vs. Temperature -4.88 -4.885 VS = ±5V IOUT = 5mA VS = ±5V IOUT = −5mA Output High Voltage (V) 4.94 4.92 4.9 4.88 4.86 4.84 4.82 4.8 -50 -30 -10 10 30 50 70 90 110 130 150 Output Low Voltage (V) 4.96 -4.89 -4.895 -4.9 -4.905 -4.91 -4.915 -4.92 -4.925 -4.93 -50 -30 -10 10 30 50 70 90 110 130 150 Temperature (°C) Temperature (°C) Slew Rate vs. Temperature 12.5 12 Frequency Response for Various RL 5 VS = ±5V Magnitude (Normalized) (dB) VS = ±5V CL = 10pF AV = 1 RL = 10kΩ RL = 1kΩ RL = 560Ω Slew Rate (V/us) 11.5 11 10.5 10 9.5 9 -50 -30 -10 10 30 50 70 90 110 130 150 0 -5 RL = 150Ω -10 -15 100k 100000 1M 1000000 10M 10000000 100M 100000000 Temperature (°C) Frequency (Hz) www.richtek.com 6 DS9133A/B-04 August 2007 Preliminary RT9133A/B PSRR vs. Frequency 80 60 20 Frequency Response for Various CL VS = ±5V RL = 10kΩ AV = 1 CL = 12pF PSRR+ PSRR- Magnitude (Normalized) (dB)1 10 0 CL = 50pF CL = 1000pF -10 PSRR (dB) 40 20 0 -20 -40 CL = 100pF -20 VS = ±5V TA = 25°C 100 100 1000 1k 10000 10k 100000 100k 1000000 1M -30 100k 100000 1M 1000000 10M 10000000 100M 100000000 Frequency (Hz) Frequency (Hz) Slew Transient Response VS = ±5V AV = 1 Slew Transient Response VS = ±5V AV = 1 (1V/Div) (2V/Div) V+ VOUT (2V/Div) VOUT (1V/Div) V+ Time (250ns/Div) Time (250ns/Div) Large Signal Transient Response VS = ±7V AV = 1 Small Signal Transient Response VS = ±5V AV = 1 V+ V+ (2V/Div) (100mV/Div) (2V/Div) VOUT VOUT (100mV/Div) Time (1μs/Div) Time (250ns/Div) DS9133A/B-04 August 2007 www.richtek.com 7 RT9133A/B CMRR vs. Frequency 80 70 60 Preliminary CMRR (dB) 50 40 30 20 10 VS = ±5V TA = 25°C 1k 1000 10k 10000 100k 100000 1M 10M 1000000 10000000 0 100 100 Frequency (Hz) www.richtek.com 8 DS9133A/B-04 August 2007 Preliminary Applications Information The RT9133A/B 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 RT9133A/B ideal for LCD applications. The RT9133A/B also has wide bandwidth and phase margin to drive a load of 10kΩ and 10pF. Operating Voltage The RT9133A/B is specified with single supply voltage from 5V to 15V. According to the electrical characteristics, the total supply voltage range is guaranteed from 4.5V to 15V. To refer the typical operational curves can get stable specifications in wide range of temperature and operating voltage. The output swing of the RT9133A/B 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. RT9133A/B junction to ambient. The maximum power dissipation can be calculated by following formula: PD(MAX) = ( TJ(MAX) - TA ) /θJA Where TJ(MAX): The maximum operation junction temperature 150°C TA : The ambient temperature. θJA : The junction to ambient thermal resistance. The recommended operating condition of RT9133A/B is below the maximum junction temperature 150°C of the die. The junction to ambient thermal resistance for SOT-23-5 package is 250°C/W, WDFN-6L 2x2 package is 165°C/W and MSOP-8 package is 160°C/W on the standard JEDEC 51-3 single layer thermal test board. The maximum power dissipation at TA = 25°C can be calculated by following formula: PD(MAX) = (150°C−25°C) / 250 = 500mW (SOT-23-5) PD(MAX) = (150°C−25°C) / 165 = 758mW (WDFN-6L 2x2) PD(MAX) = ( 150°C - 25°C ) / 160 = 781mW (MSOP-8) For continuous operation, do not exceed absolute maximum operation junction temperature 150°C. The power dissipation definition for the RT9133A/B is as following: PD = (VS - VOUT) x ILoad VS : the supply voltage VOUT : the output voltage Output Voltage (5V/Div) Input Voltage (5V/Div) ILoad : the output load current The maximum power dissipation depends on operating ambient temperature for fixed T J(MAX) and thermal resistance θJA. Figure 2 shows the power dissipation derating curves of the RT9133A/B with different packages. As the ambient temperature increases, the maximum power dissipation decreases linearly to keep the junction temperature below 150°C. Time (250μs/Div) Figure 1. Operation with Rail-to-Rail Input and Output Power Dissipation The maximum power dissipation depends on the thermal resistance of IC package, PCB layout, the rate of surroundings airflow and temperature difference between DS9133A/B-04 August 2007 www.richtek.com 9 RT9133A/B Maximum Power Dissipation (mW) 800 700 600 500 400 300 200 100 0 0 20 40 60 80 100 120 Preliminary Single Layer Board @ TA = 25°C 300k 8V WDFN-6L 2x2 MSOP-8 3k 4V + SOT-23-5 10 Measure Current 10 10nF 10 10nF 10 10nF 10nF 10 140 160 Ambient Temperature (°C) VIN 0V to 8V Square Wave Figure 3. V-com Test Circuit Figure 2. Derating Curves for the RT9133A/B Package Unused Amplifier It is recommended to connect the unused amplifier as a unit gain circuit. The negative input is directly connected to the output and the positive input should be connected to the ground. LCD Panel Applications The RT9133A/B is mainly designed for LCD gamma and V-com buffer. OP Amplifier has 120mA instantaneous source/sink peak current. To test the performance of the RT9133A/B for LCD driving capability, the test circuit is to simulate the V-com driver as shown Figure 3. 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 4 shows the waveforms of the output peak current capability. Measure Current (100mA/Div) An internal short-circuit protection circuit is implemented to protect the device from output short circuit. The RT9133A/B limits the short circuit current to ±120mA if the output is directly shorted to positive/negative supply rails. For maximum reliability, the maximum continuous output current more than ±35mA is not recommended. Input Square (5V/Div) Short Circuit Condition Time (2.5μs/Div) Figure 4. Scope Photo of the V-com Peak Current www.richtek.com 10 DS9133A/B-04 August 2007 Preliminary Outline Dimension RT9133A/B H D L C B b A A1 e Symbol A A1 B b C D e H L Dimensions In Millimeters Min 0.889 0.000 1.397 0.356 2.591 2.692 0.838 0.080 0.300 Max 1.295 0.152 1.803 0.559 2.997 3.099 1.041 0.254 0.610 Dimensions In Inches Min 0.035 0.000 0.055 0.014 0.102 0.106 0.033 0.003 0.012 Max 0.051 0.006 0.071 0.022 0.118 0.122 0.041 0.010 0.024 SOT-23-5 Surface Mount Package DS9133A/B-04 August 2007 www.richtek.com 11 RT9133A/B Preliminary D D2 L E E2 SEE DETAIL A 1 e A A1 A3 b 2 1 2 1 DETAIL A Pin #1 ID and Tie Bar Mark Options Note : The configuration of the Pin #1 identifier is optional, but must be located within the zone indicated. Symbol A A1 A3 b D D2 E E2 e L Dimensions In Millimeters Min 0.700 0.000 0.175 0.200 1.950 1.000 1.950 0.500 0.650 0.300 0.400 Max 0.800 0.050 0.250 0.350 2.050 1.450 2.050 0.850 Dimensions In Inches Min 0.028 0.000 0.007 0.008 0.077 0.039 0.077 0.020 0.026 0.012 0.016 Max 0.031 0.002 0.010 0.014 0.081 0.057 0.081 0.033 W-Type 6L DFN 2x2 Package www.richtek.com 12 DS9133A/B-04 August 2007 Preliminary RT9133A/B D L E E1 e A A1 b A2 Symbol A A1 A2 b D e E E1 L Dimensions In Millimeters Min 0.810 0.000 0.750 0.220 2.900 0.650 4.800 2.900 0.400 5.000 3.100 0.800 Max 1.100 0.150 0.950 0.380 3.100 Dimensions In Inches Min 0.032 0.000 0.030 0.009 0.114 0.026 0.189 0.114 0.016 0.197 0.122 0.031 Max 0.043 0.006 0.037 0.015 0.122 8-Lead MSOP Plastic Package Richtek Technology Corporation Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 Richtek Technology Corporation Taipei Office (Marketing) 8F, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)89191466 Fax: (8862)89191465 Email: marketing@richtek.com DS9133A/B-04 August 2007 www.richtek.com 13