RT9148ZQW Richtek

RT9148/9 20V, 350mA, Rail-to-Rail Operational Amplifier General Description Features zz z zz Rail-to-Rail Output Swing The RT9148/9 consists of a low power, high slew rate, zz z zz Supply Voltage : 6V to 20V single supply rail-to-rail input and output operational zz z zz Peak Output Current : 350mA amplifier. zz z zz High Slew Rate : 35V/s The RT9148 contains a single amplifier and RT9149 zz z zz Unity Gain Stable contains two amplifiers in one package. zz z zz RoHS Compliant and Halogen Free The RT9148/9 has a high slew rate (35V/s), 350mA peak output current and offset voltage below 15mV. The RT9148/ Pin Configurations 9is ideal for Thin Film Transistor Liquid Crystal Displays (TOP VIEW) (TFT LCD) . 1 6 VS- VIN+ The RT9148 is available in a WDFN-6L 2x2 package. The 2 5 NC VIN- RT9149 is available in a WDFN-8L 3x3 package. The 3 7 4 VS+ VOUT RT9148/9 are specified for operation over the full 40C to WDFN-6L 2x2 85C temperature range. RT9148 Applications VOUTA 1 8 VS+ z TFT LCD Panels 2 VINA- 7 VOUTB z Notebook Computers 3 VINA+ 6 VINB- 4 9 5 VINB+ VS- z Monitors z LCD TVs WDFN-8L 3x3 RT9149 Ordering Information RT9148 Marking Information Package Type QW : WDFN-6L 2x2 RT9148ZQW Lead Plating System 0E : Product Code Z : ECO (Ecological Element with W : Date Code 0EW Halogen Free and Pb free) RT9149 Package Type RT9149ZQW QW : WDFN-8L 3x3 86 : Product Code Lead Plating System YMDNN : Date Code 86 YM Z : ECO (Ecological Element with DNN Halogen Free and Pb free) Note : Richtek products are : RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS9148/9-02 March 2012 www.richtek.com 1 VS- VS-RT9148/9 Typical Application Circuit VS+ VS+ VINx+ R * S + VOUTx - TFT-LCD VINx- Capacitance VS- * : R may be needed for some applications. S Function Block Diagram VOUTA VOUTB VS+ VIN+ - VINA- - - VINB- VOUT VIN- + VINA+ + + VINB+ VS- VS+ VS- RT9148 RT9149 Functional Pin Description RT9148 Pin No. Pin Name Pin Function 1, VS Negative Supply Input. 7 (Exposed Pad) 2 NC No Internal Connection. 3 VS+ Positive Supply Input. 4 VOUT Output. 5 VIN Negative Input. 6 VIN+ Positive Input. RT9149 Pin No Pin Name Pin Function 1 VOUTA Output of Amplifier A. 2 VINA Negative Input of Amplifier A. 3 VINA+ Positive Input of Amplifier A. 4, VS Negative Supply Input. 9 (Exposed Pad) 5 VINB+ Positive Input of Amplifier B. 6 VINB Negative Input of Amplifier B. 7 VOUTB Output of Amplifier B. 8 VS+ Positive Supply Input. Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. www.richtek.com DS9148/9-02 March 2012 2