Preliminary
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/μs
μ
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)
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
A : Single Amplifier
B : Dual Amplifier
Pin Configurations
(TOP VIEW)
VS+
5
1
2
VIN-
4
3
VOUT VS- VIN+
SOT-23-5
Note :
Richtek Pb-free and Green 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.
100% matte tin (Sn) plating.
VOUTA
VINA-
VINA+
VS-
8
2
3
4
7
6
5
VS-
NC
VS+
1
2
3
7
6
5
4
VIN+
VIN-
VOUT
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
VINB-
VINB+
MSOP-8
DS9133A/B-04 August 2007
www.richtek.com
1
RT9133A/B
Function Block Diagram
Preliminary
VS+
VIN-
VIN+
-
+
VOUTA
VINA-
VINA+
VS-
-
+
-
+
VOUTB
VINB-
VINB+
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
VS-
VIN+
VIN-
VS+
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
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.
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2
DS9133A/B-04 August 2007
Preliminary
Absolute Maximum Ratings
Power Dissipation, P
D
@ T
A
= 25°C
(Note 1)
RT9133A/B
Supply Voltage --------------------------------------------------------------------------------------------------------- 17V
SOT-23-5 ---------------------------------------------------------------------------------------------------------------- 500mW
WDFN-6L 2x2 ---------------------------------------------------------------------------------------------------------- 758mW
MSOP-8 ----------------------------------------------------------------------------------------------------------------- 781mW
Package Thermal Resistance (Note 4)
SOT-23-5,
θ
JA
----------------------------------------------------------------------------------------------------------- 250°C/W
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 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.
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.
DS9133A/B-04 August 2007
www.richtek.com
3
RT9133A/B
Electrical Characteristics
Preliminary
(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
Common-Mode Rejection Ratio
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
Symbol
Test Conditions
Min
Typ
Max
Units
V
OS
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
ΔV
OS
/ΔT -40°C≦T
A
≦85°C
I
B
R
IN
C
IN
CMIR
CMRR
A
VOL
V
OL
V
OH
I
OC
I
PC
For V
IN
from –5.5V to +5.5V
-4.5V≦V
OUT
≦+4.5V
I
L
= -5mA
I
L
= +5mA
V
CM
= 0
50
75
--
4.85
--
--
-4.92
4.92
±35
±120
-4.85
--
--
--
V
V
mA
mA
V
S
PSRR
I
SY
SR
t
S
BW
GBWP
PM
CS
V
S
is moved from ±2.25V to ±7.75V
No Load
4.5
60
--
--
70
500
15
--
750
V
dB
uA
-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
--
--
--
--
--
--
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
(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)
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
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
Symbol
Test Conditions
V
OS
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
ΔV
OS
/ΔT
−40°C≦T
A
≦
85°C
I
B
R
IN
C
IN
CMIR
CMRR
A
VOL
For V
IN
from –0.5V to +5.5V
0.5V≦V
OUT
≦+4.5V
V
CM
= 2.5V
45
75
V
OL
V
OH
I
OC
I
PC
I
L
= -5mA
I
L
= +5mA
--
2.35
--
--
-2.42
2.42
±35
±90
-2.35
--
--
--
mV
V
mA
mA
PSRR
I
SY
V
S
is moved from ±2.25V to ±7.75V
No Load
45
--
70
500
--
750
dB
uA
SR
t
S
BW
GBWP
PM
CS
−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-04 August 2007
www.richtek.com
5
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