20V, 350mA, Rail-to-Rail Operational Amplifier


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The RT9148/9 consists of a low power, high slew rate, single supply rail-to-rail input and output operational amplifier. The RT9148 contains a single amplifier and RT9149 contains two amplifiers in one package.

The RT9148/9 has a high slew rate (35V/μs), 350mA peak output current and offset voltage below 15mV. The RT9148/9 is ideal for Thin Film Transistor Liquid Crystal Displays (TFT-LCD).

The RT9148 is available in the WDFN-6L 2x2, TSOT-23-5 and UDFN-6L 2x2 packages. The RT9149 is available in the WDFN-8L 3x3 package. The RT9148/9 are specified for operation over the full temperature range from -40°C to 85°C.


  • TFT LCD Panels
  • Notebook Computers
  • Monitors
  • LCD TVs
Key Spec.
RT9148 RT9149
Status Active Active
Vs (min) (V) 6 6
Vs (max) (V) 20 20
Number of Outputs 1 2
Voffset (typ) (mV) 2 2
Ipeak (typ) (mA) 350 350
Slew Rate (V/us) 35 35
AVOL (typ) (dB) 118 118
CMRR (typ) (dB) 95 95
PSRR (typ) (dB) 96 96
Package Type TSOT-25;UDFN2x2-6;WDFN2x2-6 WDFN3x3-8
  • Rail-to-Rail Output Swing
  • Supply Voltage : 6V to 20V
  • Peak Output Current : 350mA
  • High Slew Rate : 35V/μs
  • Unity Gain Stable
  • RoHS Compliant and Halogen Free
TitleLast UpdateShareDownload
20V, 350mA, Rail-to-Rail Operational Amplifier2012/05/11
Technical Documents
TitleLast UpdateShareDownload
Richtek Selection Guide [Oct., 2020]2020/12/30