MP8101
Ultra Low Power
1.8V, 400KHz Op Amp
The Future of Analog IC Technology
DESCRIPTION
FEATURES
The MP8101 is a rail-to-rail output, operational
amplifier in a TSOT-23 package. This amplifier
provides 400KHz bandwidth while consuming
an incredibly low 11µA of supply current. The
MP8101 can operate with a single supply
voltage as low as 1.8V.
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Single Supply Operation: 1.8V to 5.5V
TSOT23-5 Package
400KHz Gain Bandwidth
11µA Supply Current
Rail-to-Rail Output
Unity-Gain Stable
Input Common Mode to Ground
Drives Up to 1000pF of Capacitive Loads
APPLICATIONS
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•
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Portable Equipment
PDAs
Pagers
Cordless Phones
Handheld GPS
Consumer Electronics
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
V+ = 1.8V-5.5V
VIN
4
--
2
1
V+
MP8101 Rev. 0.91
1/17/2008
3
+
VOUT
5
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2008 MPS. All Rights Reserved.
1
MP8101 – ULTRA LOW POWER, 1.8V, 400KHz OP AMP
ABSOLUTE MAXIMUM RATINGS (1)
PACKAGE REFERENCE
Supply Voltage (V+ to V-) ......................... +6.0V
Differential Input Voltage (VIN+ – VIN–) ....... +6.0V
Input Voltage (VIN+ – VIN–)..VIN+ + 0.3V, VIN– – 0.3V
TOP VIEW
OUT
1
5
V-
Recommended Operating Conditions
V+
2
IN+
3
(2)
Supply Voltage ........................... +1.8V to +5.5V
Operating Temperature .............–40°C to +85°C
4
IN-
Thermal Resistance
(3)
θJA
θJC
TSOT23-5.............................. 220 .... 110.. °C/W
Part Number*
Package
Temperature
MP8101DJ
TSOT23-5
–40°C to +85°C
*
For Tape & Reel, add suffix –Z (eg. MP8101DJ–Z)
For Lead Free, add suffix –LF (eg. MP8101DJ–LF–Z)
Notes:
1) Exceeding these ratings may damage the device.
2) The device is not guaranteed to function outside of its
operating conditions.
3) Measured on approximately 1” square of 1 oz copper.
ELECTRICAL CHARACTERISTICS
V+ = +5V, V- = 0V, VCM = V+/2, RL = 10kΩ, TA = +25°C, unless otherwise noted.
Parameter
Symbol Condition
Input Offset Voltage
Input Offset Voltage Temp
Coefficient
Input Bias Current (4)
Input Offset Current (4)
Input Voltage Range
Common-Mode Rejection
Ratio
Power Supply Rejection
Ratio
Large Signal Voltage Gain
Maximum Output Voltage
Swing
Minimum Output Voltage
Swing
Gain-Bandwidth Product (4)
VOS
IB
IOS
VCM
CMRR > 60dB
CMRR
0 < VCM < 3.5V
PSRR
AVOL
Typ
Max
Units
–5
1
+5
mV
15
µV/°C
2
0.2
pA
pA
V
0
60
3.8
82
dB
80
dB
88
dB
VOUT
RL = 10kΩ
(V+) – 23mV
V
VOUT
RL = 10kΩ
(V–) + 19mV
V
400
KHz
1
MHz
0.2
V/µs
20
20
11
mA
mA
µA
GBW
–3dB Bandwidth (4)
BW
Slew Rate (4)
SR
Short Circuit Current
ISC
Supply Current
Supply Voltage change of
1.0V
RL = 100kΩ,
VOUT = 5.0 Peak to Peak
Min
RL = 200kΩ,CL = 2pF,
VOUT = 0
AV = 1, CL = 2pF,
RL = 1MΩ
AV = 1, CL = 2pF,
RL = 1MΩ
Source
Sink
No Load
20
Note:
4) Guaranteed by design.
MP8101 Rev. 0.91
1/17/2008
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2008 MPS. All Rights Reserved.
2
MP8101 – ULTRA LOW POWER, 1.8V, 400KHz OP AMP
PIN FUNCTIONS
Pin #
1
2
3
4
5
Name Description
OUT
V+
IN+
INV-
Output.
Supply Voltage.
Non-Inverting Input.
Inverting Input.
Ground or Supply Return Pin.
TEST CIRCUITS
V+
RF(+Av)
3
+
2
1
4
--
5
VOUT
U1
RFB
RF( -- Av)
S1
RL
S3
S2
CL
VNotes: Close S3 for positive gain. Input signal to RF(+Av) connector.
The gain Av = 1 + RFB/RIN.
For unity gain, remove RIN and short RFB.
Open S3 for negative gain. Input signal to RF(-Av) connector.
The gain Av = -RFB/RIN.
S1 and S2 are switches for possible resistor and capacitor load
connections.
Figure 1—AC Test Circuit
MP8101 Rev. 0.91
1/17/2008
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2008 MPS. All Rights Reserved.
3
MP8101 – ULTRA LOW POWER, 1.8V, 400KHz OP AMP
TEST CIRCUITS (continued)
+
+
+
V+
BNC
INPUT
3
+
2
1
--
OUTPUT
5
+
+
+
4
BNC
V--
Figure 2—Positive Power Supply Rejection Ratio Measurement
MP8101 Rev. 0.91
1/17/2008
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2008 MPS. All Rights Reserved.
4
MP8101 – ULTRA LOW POWER, 1.8V, 400KHz OP AMP
TYPICAL PERFORMANCE CHARACTERISTICS
TA = +25°C, unless otherwise noted.
Short Circuit Current vs
Supply Voltage
Short Circuit Current vs
Supply Voltage
Sinking
Sourcing
20
OUTPUT CURRENT (mA)
OUTPUT CURRENT (mA)
20
16
12
8
4
0
0.5
0.9
1.3
1.7
2.1
16
12
8
4
0
0.5
2.5
-1.30
-1.2
-1.84
-1.3
-2.38
-1.4
-2.92
-1.6
-4.00
-1.7
1
2
3
1.3
1.7
2.1
2.5
-1.5
-3.46
0
0.9
SUPPLY VOLTAGE (V)
VOS (mV)
VOS (mV)
SUPPLY VOLTAGE (V)
4
0
5
2
3
4
5
SUPPLY VOLTAGE (V)
COMMON MODE VOLTAGE (V)
1800
1
Output Noise vs.
Frequency
1600
1400
1200
1000
800
600
400
200
0
0
10
100
1K
10K
100K
FREQUENCY (Hz)
MP8101 Rev. 0.91
1/17/2008
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2008 MPS. All Rights Reserved.
5
MP8101 – ULTRA LOW POWER, 1.8V, 400KHz OP AMP
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TA = +25°C, unless otherwise noted.
0
-10
-900
Phase
-20
-30
1K
10K
100K
1M
Gain
Phase
-10
-180
-20
-270
-30
1K
20
+90
10
0
0
-90
Phase
-20
10K
100K
1M
GAIN (dB)
+180
PHASE (Degree)
GAIN (dB)
Gain
-30
1K
-270
-30
1K
-20
-270
-30
1K
10K
100K
+180
20
CL=10pF
-1
+90
10
-90
1M
-1800
-20
-270
-30
1K
90
80
80
70
70
60
50
40
50
40
20
-4
10
10
MP8101 Rev. 0.91
1/17/2008
-270
60
30
FREQUENCY (Hz)
1M
V- = -2.5V, V+ = 2.5V
100
10K
100K
CMRR vs. Frequency
90
1K
10K
FREQUENCY (Hz)
100
100
-90
-1800
20
1M
-270
+90
Phase
-10
-3
100K
1M
0
30
10K
100K
0
V- = -2.5V, V+ = 2.5V
0
10K
Gain
-2
-5
1K
-1800
+180
PSRR vs. Frequency
CL=100pF
-90
FREQUENCY (Hz)
Phase
-1800
PSRR (dB)
GAIN (dB)
-20
PSRR (dB)
CL=1000pF
0
Phase
FREQUENCY (Hz)
5
1
0
-1800
0
-10
V+/- = +/-2.5V, Gain = 1
2
0
-10
1M
0
Close-Loop Unity Gain
Frequency Response
3
100K
Gain
FREQUENCY (Hz)
4
10K
-90
+90
Gain
FREQUENCY (Hz)
20
-10
10
0
0
FREQUENCY (Hz)
10
+90
+180
PHASE (Degree)
10
20
PHASE (Degree)
0
+90
+180
PHASE (Degree)
GAIN (dB)
Gain
20
PHASE (Degree)
GAIN (dB)
GAIN (dB)
10
+180
PHASE (Degree)
GAIN (dB)
20
100K
FREQUENCY (Hz)
1M
0
100
1K
10K
100K
1M
FREQUENCY (Hz)
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2008 MPS. All Rights Reserved.
6
MP8101 – ULTRA LOW POWER, 1.8V, 400KHz OP AMP
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TA = +25°C, unless otherwise noted.
INPUT
50mV/div.
INPUT
50mV/div.
OUTPUT
50mV/div.
OUTPUT
50mV/div.
INPUT
50mV/div.
OUTPUT
200mV/div.
INPUT
100mV/div.
OUTPUT
100mV/div.
MP8101 Rev. 0.91
1/17/2008
INPUT
50mV/div.
OUTPUT
50mV/div.
INPUT
100mV/div.
OUTPUT
200mV/div.
INPUT
50mV/div.
OUTPUT
50mV/div.
INPUT
50mV/div.
OUTPUT
50mV/div.
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2008 MPS. All Rights Reserved.
7
MP8101 – ULTRA LOW POWER, 1.8V, 400KHz OP AMP
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TA = +25°C, unless otherwise noted.
INPUT
1V/div.
OUTPUT
200mV/div.
OUTPUT
2V/div.
OUTPUT
100mV/div.
1ms/div.
INPUT
0.5V/div.
INPUT
0.5V/div.
INPUT
0.5V/div.
OUTPUT
1V/div.
OUTPUT
1V/div.
OUTPUT
0.5V/div.
1ms/div.
MP8101 Rev. 0.91
1/17/2008
1ms/div.
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2008 MPS. All Rights Reserved.
1ms/div.
8
MP8101 – ULTRA LOW POWER, 1.8V, 400KHz OP AMP
APPLICATION INFORMATION
Power Supply Bypassing
Regular supply bypassing techniques are
recommended. A 10µF capacitor in parallel with
a 0.1µF capacitor on both the positive and
negative supplies is ideal. For the best
performance, all bypassing capacitors should
be located as close to the op amp as possible
and all capacitors should be low ESL
(Equivalent Series Inductance) and low ESR
(Equivalent Series Resistance). Surface mount
ceramic
capacitors
are
ideal
TYPICAL APPLICATION CIRCUIT
VCC
C
OUTPUT1
VIN
R
--
200pF
MP8101
+
-MP8101
VCC/2
OUTPUT2
+
Q1
NPN
Notes:
1) The control voltage VIN is wide, 0 < VIN < VCC - 1V
2) The switch frequency can be changed by adjusting R and C.
Figure 3—Voltage Controlled Frequency Circuit
MP8101 Rev. 0.91
1/17/2008
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2008 MPS. All Rights Reserved.
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MP8101 – ULTRA LOW POWER, 1.8V, 400KHz OP AMP
PACKAGE INFORMATION
TSOT23-5
0.95
BSC
0.60
TYP
2.80
3.00
5
4
1.20
TYP
1.50
1.70
1
2.60
TYP
2.60
3.00
3
TOP VIEW
RECOMMENDED LAND PATTERN
0.84
0.90
1.00 MAX
0.09
0.20
SEATING PLANE
0.30
0.50
0.95 BSC
0.00
0.10
SEE DETAIL "A"
FRONT VIEW
SIDE VIEW
NOTE:
GAUGE PLANE
0.25 BSC
0.30
0.50
0o-8o
DETAIL A
1) ALL DIMENSIONS ARE IN MILLIMETERS.
2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH,
PROTRUSION OR GATE BURR.
3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH
OR PROTRUSION.
4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING)
SHALL BE 0.10 MILLIMETERS MAX.
5) DRAWING CONFORMS TO JEDEC MO-193, VARIATION AA.
6) DRAWING IS NOT TO SCALE.
NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third
party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not
assume any legal responsibility for any said applications.
MP8101 Rev. 0.91
1/17/2008
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2008 MPS. All Rights Reserved.
10