Operational Amplifier. RT9149 Datasheet

RT9149 Amplifier. Datasheet pdf. Equivalent

RT9149 Datasheet
Recommendation RT9149 Datasheet
Part RT9149
Description Rail-to-Rail Operational Amplifier
Feature RT9149; ® RT9148/9 20V, 350mA, Rail-to-Rail Operational Amplifier General Description The RT9148/9 consist.
Manufacture Richtek
Datasheet
Download RT9149 Datasheet




Richtek RT9149
®
RT9148/9
20V, 350mA, Rail-to-Rail Operational Amplifier
General Description
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.
Marking Information
RT9148ZQW
0E : Product Code
0EW
W : Date Code
RT9148GJ5
00=DNN
00 : Product Code
DNN : Date Code
RT9148GQU
2DW
2D : Product Code
W : Date Code
RT9149ZQW
86 YM
DNN
86 : Product Code
YMDNN : Date Code
Features
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
Applications
TFT LCD Panels
Notebook Computers
Monitors
LCD TVs
Ordering Information
RT9148
Package Type
QW : WDFN-6L 2x2 (W-Type)
Lead Plating System
Z : ECO (Ecological Element with
Halogen Free and Pb free)
RT9148
Package Type
J5 : TSOT-23-5
QU : UDFN-6L 2x2 (U-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
RT9149
Package Type
QW : WDFN-8L 3x3 (W-Type)
Lead Plating System
Z : ECO (Ecological Element with
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 ©2013 Richtek Technology Corporation. All rights reserved.
DS9148/9-04 October 2013
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1



Richtek RT9149
RT9148/9
Pin Configurations
VS- 1
NC 2
VS+ 3
6 VIN+
5 VIN-
7 4 VOUT
WDFN-6L 2x2 / UDFN-6L 2x2
RT9148
Typical Application Circuit
(TOP VIEW)
VS+ VIN-
54
23
VOUT VS- VIN+
TSOT-23-5
RT9148
VS+
VOUTA 1
VINA- 2
VINA+ 3
VS- 4
8 VS+
7 VOUTB
6 VINB-
9 5 VINB+
WDFN-8L 3x3
RT9149
VS+
VINx+
VINx-
+
-
VS-
VOUTx
RS*
TFT-LCD
Capacitance
* : RS may be needed for some applications.
Function Block Diagram
VIN+
VIN-
-
+
VS+
VOUT
VS-
WDFN-6L 2x2 / UDFN-6L 2x2
RT9148
VIN+
VIN-
+
-
TSOT-23-5
RT9148
VS+
VOUT
VS-
VOUTA
VINA-
VINA+
VS+
--
++
WDFN-8L 3x3
RT9149
VOUTB
VINB-
VINB+
VS-
Copyright ©2013 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS9148/9-04 October 2013



Richtek RT9149
Functional Pin Description
RT9148
Pin No.
WDFN-6L 2x2,
UDFN-6L 2x2
TSOT-23-5
Pin Name
1,
7 (Exposed Pad)
2
VS
2 -- NC
3 5 VS+
4 1 VOUT
5 4 VIN
6 3 VIN+
RT9149
Pin No.
1
2
3
4, 9 (Exposed Pad)
5
6
7
8
Pin Name
VOUTA
VINA
VINA+
VS
VINB+
VINB
VOUTB
VS+
RT9148/9
Pin Function
Negative Supply Input.
No Internal Connection.
Positive Supply Input.
Output.
Negative Input.
Positive Input.
Pin Function
Output of Amplifier A.
Negative Input of Amplifier A.
Positive Input of Amplifier A.
Negative Supply Input.
Positive Input of Amplifier B.
Negative Input of Amplifier B.
Output of Amplifier B.
Positive Supply Input.
Copyright ©2013 Richtek Technology Corporation. All rights reserved.
DS9148/9-04 October 2013
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
3







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