RT9133A/B
Rail-to-Rail Operational Amplifier
General Description
The RT9133A/B consist low cost, high slew rates, single-
supply 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/us
Offset Voltage : 10mV
RoHS Compliant and 100% Lead (Pb)-Free
Applications
TFT-LCD Gamma / V
COM
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)
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
A : Single Amplifier
B : Dual Amplifier
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.
Pin Configurations
(TOP VIEW)
VS+
5
2
VIN-
4
3
VOUT VS- VIN+
SOT-23-5
VS-
NC
VS+
2
3
VS-
1
6
5
4
7
VIN+
VIN-
VOUT
WDFN-6L 2x2
VOUTA
VINA-
VINA+
VS-
VS+
VOUTB
VINB-
VINB+
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
8
2
3
4
7
6
5
MSOP-8
DS9133A/B-07 April 2011
www.richtek.com
1
RT9133A/B
Function Block Diagram
VOUTA
VINA-
VINA+
VS-
-
+
-
+
VS+
VIN-
VIN+
-
+
VOUTB
VINB-
VINB+
VS+
VOUT
VS-
RT9133A
RT9133B
Functional Pin Description
Single
SOT-23-5
1
--
2
3
4
5
Pin No.
WDFN-6L 2x2
4
2
1, 7 (Exposed Pad)
6
5
3
Pin Name
VOUT
NC
VS-
VIN+
VIN-
VS+
Amplifier Output.
No Internal Connection.
Negative Power Supply.
Amplifier Non-Inverting Input.
Amplifier Inverting Input.
Positive Power Supply.
Pin Function
Dual
Pin No.
1
2
3
4
5
6
7
8
Pin Name
VOUTA
VINA-
VINA+
VS-
VINB+
VINB-
VOUTB
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-07 April 2011
RT9133A/B
Absolute Maximum Ratings
(Note 1)
17V
500mW
758mW
781mW
250°C/W
Supply Voltage -------------------------------------------------------------------------------------------------------
Power Dissipation, P
D
@ T
A
= 25°C
SOT-23-5 ---------------------------------------------------------------------------------------------------------------
WDFN-6L 2x2 ---------------------------------------------------------------------------------------------------------
MSOP-8 ---------------------------------------------------------------------------------------------------------------
Package Thermal Resistance (Note 2)
SOT-23-5,
θ
JA
---------------------------------------------------------------------------------------------------------
WDFN-6L 2x2,
θ
JA
--------------------------------------------------------------------------------------------------- 165°C/W
MSOP-8,
θ
JA
---------------------------------------------------------------------------------------------------------- 160°C/W
Differential Input Voltage -------------------------------------------------------------------------------------------- V
S
Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------- 260°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
(Note 4)
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.
θ
JA
is measured in the natural convection at T
A
= 25°C on a low effective thermal conductivity test board (single layer,
1S) of JEDEC 51-3 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.
DS9133A/B-07 April 2011
www.richtek.com
3
RT9133A/B
Electrical Characteristics
(V
S
+=+5V, V
S
- = -5V, R
L
= 10kΩ and C
L
= 10pF to 0V, T
A
=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
Symbol
Test Conditions
Min
Typ
Max
Unit
V
OS
ΔV
OS
/ΔT
I
B
R
IN
C
IN
CMIR
V
CM
= 0
−40°C≦T
A
≦85°C
V
CM
= 0
--
--
--
--
--
-5.5
2
5
2
1
1.35
--
80
95
15
--
50
--
--
+5.5
--
--
mV
uV/°C
nA
GΩ
pF
V
dB
dB
Common-Mode Rejection Ratio CMRR
Open-Loop Gain
Output Characteristics
Output swing Low
Output swing High
Continuous
V
COM
Buffer Output current
Peak
V
COM
Buffer Output current
Power Supply
Supply Voltage
Power Supply Rejection Ratio
Supply Current/Amplifier
Dynamic Performance
Slew Rate(Note)
Setting to ±0.1% (A
V
=+1)
-3dB Bandwidth
Gain-Bandwidth Product
Phase Margin
Channel Separation
SR
t
S
BW
GBWP
PM
CS
V
S
PSRR
I
SY
V
OL
V
OH
I
OC
I
PC
A
VOL
For V
IN
from –5.5V to +5.5V
−4.5V≦V
OUT
≦+4.5V
I
L
= -5mA
I
L
= +5mA
50
75
--
4.85
--
--
-4.92
4.92
±35
±120
-4.85
--
--
--
V
V
mA
mA
4.5
V
S
is moved from ±2.25V to ±7.75V
No Load
−4.0V≦V
OUT
≦+4.0V,
20% to 80%
(A
V
= +1), V
OUT
= 2V step
R
L
= 10kΩ, C
L
=10 pF
R
L
= 10kΩ, C
L
=10 pF
R
L
= 10kΩ, C
L
=10 pF
f = 5MHz
60
--
--
70
500
15
--
750
V
dB
uA
--
--
--
--
--
--
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-07 April 2011
RT9133A/B
(V
S
+=+2.5V, V
S
- = -2.5V, R
L
= 10kΩ and C
L
= 10pF to 2.5V, T
A
=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
Symbol
Test Conditions
Min
Typ
Max
Unit
V
OS
ΔV
OS
/ΔT
I
B
R
IN
C
IN
CMIR
V
CM
= 2.5V
−40°C≦T
A
≦
85°C
V
CM
= 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
Common-Mode Rejection Ratio CMRR
Open-Loop Gain
Output Characteristics
Output swing Low
Output swing High
Continuous
V
COM
Buffer Output current
Peak
V
COM
Buffer Output current
Power Supply
Power Supply Rejection Ratio
Supply Current/Amplifier
Dynamic Performance
Slew Rate(Note)
Setting to ±0.1% (A
V
= +1)
-3dB Bandwidth
Gain-Bandwidth Product
Phase Margin
Channel Separation
SR
t
S
BW
GBWP
PM
CS
PSRR
I
SY
V
OL
V
OH
I
OC
I
PC
A
VOL
For V
IN
from –0.5V to +5.5V
0.5V≦V
OUT
≦+4.5V
45
75
I
L
=
−5mA
I
L
= +5mA
--
2.35
--
--
−2.42
2.42
±35
±90
−2.35
--
--
--
mV
V
mA
mA
V
S
is moved from ±2.25V to ±7.75V
No Load
45
--
70
500
--
750
dB
uA
−4V≦V
OUT
≦+4V,
20% to 80%
(A
V
= +1), V
OUT
= 2V step
R
L
= 10kΩ, C
L
=10 pF
R
L
= 10kΩ, C
L
=10 pF
R
L
= 10kΩ, C
L
=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-07 April 2011
www.richtek.com
5
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