MP5121, MP5221, MP5421
High Speed, Rail-to-Rail Input-Output, and
Single-Supply Op Amps
The Future of Analog IC Technology
DESCRIPTION
The MP5121(single), MP5221(dual), and
MP5421(quad) are high-speed, high-voltage
rail-to-rail input-output amplifiers for use as
voltage reference buffers in Thin Film Transistor
Liquid Crystal Displays (TFT-LCDs). The
MP5121 family provides excellent overall
performance and versatility. The 20MHz –3dB
bandwidth and 45V/s slew rate make these
amplifier suitable for many portable applications.
The MP5121, MP5221, and MP5421 are
designed to operate at supply voltages as low
as 3.2V and up to 20V at 1.6mA of supply
current per amplifier. The MP5121 family has
true single supply capability. The input can
swing 0.5V below the negative rail and 0.5V
above the positive rail. The output can swing
within 100mV of each rail.
The MP5421 quad channel is available in the
space-saving 14-pin TSSOP package. The
MP5221 Dual channel is available in the 8-pin
MSOP package and the MP5121 single
channel is available in 5-pin TSOT package. All
feature a standard operational amplifier pin out.
FEATURES
20MHz –3dB Bandwidth
45V/s Slew Rate
Single-Supply Operation: 3.2V to 20V
Supply Current (per amplifier)1.6mA
Unity-Gain Stable
Output Swing within 100mV of Supply Rail
Rail-to-Rail Input Capability
High Output Drive Capability (50mA)
MP5121 Available in TSOT-5
MP5221 Available in MSOP-8
MP5421 Available in TSSOP-14
TFT-LCD Drive Circuits
Electronic Notebooks
Electronic Games
Touch-Screen Displays
Personal Communication Devices
Personal Digital Assistants (PDA)
Portable Instrumentation
Sampling ADC Amplifiers
Wireless LAN
Office Automation
Active Filters
ADC/DAC Buffer
APPLICATIONS
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks
of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
Vs+
10uF
0.1nF
VIN+
U1
+
MP 5121
-
Co
GND
10uF
0.1nF
TFT LCD
Vs-
MP5121_MP5221_MP5421 Rev. 0.91
www.MonolithicPower.com
12/26/2013
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
1
MP5121_MP5221_MP5421 –High Speed, single-supply Rail-to-Rail Input-Output Op Amps
ORDERING INFORMATION
Part Number
MP5121DJ*
MP5221DK**
MP5421DM***
Package
TSOT23-5
MOSP-8
TSSOP-14
Top Marking
2R
5221D
M5421DM
Free Air Temperature (T
A
)
–40C to +85C
* For Tape and Reel, add suffix -Z (eg. MP5121DJ-Z).
For RoHS Compliant Packaging, add suffix-LF (eg. MP5121DJ-LF-Z).
** For Tape and Reel, add suffix -Z (eg. MP5221DK-Z).
For RoHS Compliant Packaging, add suffix-LF (eg. MP5221DK-LF-Z).
*** For Tape and Reel, add suffix -Z (eg. MP5421DM-Z).
For RoHS Compliant Packaging, add suffix-LF (eg. MP5421DM-LF-Z).
PACKAGE REFERENCE
MP5121
(5-PIN TSOT)
MP5221
(8-PIN MSOP)
TOP VIEW
VOUT 1
5
VS+
VOUTA
VINA-
1
2
3
TOP VIEW
8
7
6
VS+
VOUTB
VINB-
VINB+
--
+
+
VS- 2
--
4 VIN-
VINA+
VS-
MP5421
(14-PIN TSSOP)
TOP VIEW
VOUTA
VINA-
VINA+
VS+
VINB+
VINB-
VOUTB
1
2
3
4
5
6
7
--
--
--
--
14 VOUTD
13 VIND-
12 VIND+
11
VS-
+
+
10 VINC+
9 VINC-
8 VOUTC
MP5121_MP5221_MP5421 Rev. 0.91
www.MonolithicPower.com
12/26/2013
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
+
VIN+ 3
4
--
5
+
+
2
MP5121_MP5221_MP5421 –High Speed, single-supply Rail-to-Rail Input-Output Op Amps
ABSOLUTE MAXIMUM RATINGS
(1)
(T
A
=25C)
Single Supply Voltage V
S
.............–0.3V to +23V
Input Voltage.................... V
S
- - 0.5V, V
S
+ +0.5V
Maximum Continuous Output Current
.................................................................. 50mA
Maximum Die Temperature ....................+125°C
Storage Temperature............... -60°C to +150°C
Ambient Operating Temp........... -40°C to +85°C
(2)
Power Dissipation. ...................... See Curves
Recommended Operating Conditions
(3)
Single Power Supply Operation V
S
......................................................3.2V to + 20V
Operating Junct. Temp (T
J
)..... –40C to +125C
Thermal Resistance
(4)
θ
JA
θ
JC
MSOP ....................................150 ...... 65.. °C/W
TSOT .....................................220 .... 110.. °C/W
TSSOP ...................................40 ….....6... °C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature T
J
(MAX), the junction-to-
ambient thermal resistance
θ
JA
, and the ambient temperature
T
A
. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by P
D
(MAX) = (T
J
(MAX)-T
A
)/θ
JA
. Exceeding the maximum allowable power
dissipation will cause excessive die temperature, and the
regulator will go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB
MP5121_MP5221_MP5421 Rev. 0.91
www.MonolithicPower.com
12/26/2013
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
3
MP5121_MP5221_MP5421 –High Speed, single-supply Rail-to-Rail Input-Output Op Amps
ELECTRICAL CHARACTERISTICS
V
S
= 10V, V
CM
= 5V, V
OUT
= 5V, RL = 10kΩ and C
L
= 10pF, T
A
= T
J
=25°C, unless otherwise noted.
Parameter
INPUT CHARACTERISTICS
Input Offset Voltage
Average Offset Voltage
Drift
Input Bias Current
Input Impedance
Input Capacitance
Symbol
V
OS
TCV
OS
I
B
R
IN
C
IN
-5.5
for V
IN
from -5.5V to +5.5V
-4.5V
≤
V
OUT
≤
+4.5V
I
L
= -5mA
I
L
= -5mA
Sourcing
V
S
is moved from ±2.25V to
±7.75V
No load
-4.0V
≤
V
OUT
≤
+4.0V, 20%
to 80%
(AV = +1), V
O
= 2V step
R
L
= 10kΩ, C
L
= 10pF
R
L
= 10kΩ, C
L
= 10pF
R
L
= 10kΩ, C
L
= 10pF
f = 5MHz (MP5221
MP5421 only)
&
70
60
50
85
60
-4.95
4.82
70
95
1.6
Condition
Min
Typ
2
5
0.5
1
1.35
+5.5
2
Max
20
Units
mV
μ/°C
μA
GΩ
pF
V
dB
dB
V
V
mA
dB
mA
Common-Mode Input
CMIR
Range
Common-Mode
CMRR
Rejection Ratio
Open Loop Gain
A
VOL
OUTPUT CHARACTERISTICS
Output Swing Low
V
OL
Output Swing High
V
OH
Short Circuit Current
I
SC
POWER SUPPLY PERFORMANCE
Power
Supply
PSRR
Rejection Ratio
Supply Current (Per
I
S
Amplifier)
DYNAMIC PERFORMANCE
Slew Rate (Rise/Fall)
Settling to +0.1% (A
V
=
+1)
-3dB Bandwidth
Gain-Bandwidth
Product
Phase Margin
Channel Separation
SR
t
S
BW
GBWP
PM
CS
45
500
20
14
50
70
V/μs
ns
MHz
MHz
dB
MP5121_MP5221_MP5421 Rev. 0.91
www.MonolithicPower.com
12/26/2013
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
4
MP5121_MP5221_MP5421 –High Speed, single-supply Rail-to-Rail Input-Output Op Amps
ELECTRICAL CHARACTERISTICS
(
continued
)
V
S
= 20V, V
CM
= 10V, V
OUT
= 10V, RL = 10kΩ and C
L
= 10pF, T
A
= 25°C, unless otherwise noted.
Parameter
INPUT CHARACTERISTICS
Input Offset Voltage
Average Offset Voltage
Drift
Input Bias Current
Input Impedance
Input Capacitance
Symbol
V
OS
TCV
OS
I
B
R
IN
C
IN
Condition
Min
Typ
2
5
0.5
1
1.35
±8
for V
IN
from -8V to +8V
-9V
≤
V
OUT
≤
+9V
I
L
= -5mA
I
L
= -5mA
Sourcing
V
S
is moved from ±2.25V to
±7.75V
No load
-4.0V
≤
V
OUT
≤
+4.0V, 20%
to 80%
(AV = +1), V
O
= 2V step
R
L
= 10kΩ, C
L
= 10pF
R
L
= 10kΩ, C
L
= 10pF
R
L
= 10kΩ, C
L
= 10pF
f = 5MHz (MP5221
MP5421 only)
&
70
60
50
85
60
-4.95
4.82
70
95
1.6
2
Max
20
Units
mV
μ/°C
μA
GΩ
pF
V
dB
dB
V
V
mA
dB
mA
Common-Mode
Input
CMIR
Range
Common-Mode
CMRR
Rejection Ratio
Open Loop Gain
A
VOL
OUTPUT CHARACTERISTICS
Output Swing Low
V
OL
Output Swing High
V
OH
Short Circuit Current
I
SC
POWER SUPPLY PERFORMANCE
Power Supply Rejection
PSRR
Ratio
Supply Current (Per
I
S
Amplifier)
DYNAMIC PERFORMANCE
Slew Rate
Settling to +0.1% (A
V
=
+1)
-3dB Bandwidth
Gain-Bandwidth
Product
Phase Margin
Channel Separation
SR
t
S
BW
GBWP
PM
CS
45
500
20
14
50
70
V/μs
ns
MHz
MHz
dB
MP5121_MP5221_MP5421 Rev. 0.91
www.MonolithicPower.com
12/26/2013
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
5
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