3PEAK
Features
TP2111/TP2111N/TP2112/TP2114
Nanopower 300nA, 1.8V, Rail-to-Rail Input/Output Op-amps
Description
The TP211x are ultra-low power, precision CMOS
op-amps that provide a constant 10kHz bandwidth
and 10mV/μs slew rate with only 300nA quiescent
current per amplifier. The ground-sensing input
common-mode range, guaranteed 1.5mV V
OS
and
ultra-low 0.4μV/°C V
OS
TC enables accurate and
stable measurement for both high side and low side
current sensing.
The TP211x have carefully designed CMOS input
stage that outperforms competitors with typically
0.1fA I
B
. This ultra-low input current significantly
reduces I
B
and I
OS
errors introduced in giga-Ω
resistance, high impedance photodiode, and charge
sense situations. The TP211x are unity gain stable
with 1,000nF capacitive load. They can operate from
a single -supply voltage of +1.8V to +6.0V or a
dual-supply voltage of ±
0.9V to ±3.0V, and features
ground-sensing inputs and rail-to-rail output.
The combined features make the TP211x ideally
suited for a variety of
2-cell NiCd/Alkaline battery or
single-Li+
battery powered portable applications.
Potential applications include low frequency signal
conditioning, mobile accessories, wireless remote
sensing, vibration monitors, ECGs, pulse monitors,
glucose meters, smoke and fire detectors, and
backup battery sensors.
For applications that require power-down, the
TP2111N has a low-power shutdown mode that
reduces supply current to 3nA typically, and forces
the output into a high-impedance state.
Ultra-low Supply Current:
300nA Typical / 500nA Maximum per Amplifier
Stable 10 kHz GBWP with 6 mV/μs Slew Rate
Offset Voltage: 1.5 mV Maximum
Ultra-low V
OS
TC: 0.4 μV/°
C
Ultra-low Input Bias Current: 0.1 fA Typical
Unity Gain Stable for 1,000 nF Capacitive Load
High 120 dB Open-Loop Voltage Gain
Ground-Sensing Input Common-Mode Range
Outputs Swing Rail-to-Rail
Outputs Source and Sink 20 mA of Load Current
No Phase Reversal for Overdriven Inputs
Ultra-low Single-Supply Operation Down to +1.8V
Shutdown Current: 3 nA Typical (TP2111N)
–40° to 125° Operation Range
C
C
Robust 8 kV – HBM and 2 kV – CDM ESD Rating
Green, Popular Type Package
Applications
Current Sensing
Threshold Detectors/Discriminators
Low Power Filters
Handsets and Mobile Accessories
Wireless Remote Sensors, Active RFID Readers
Gas/Oxygen/Environment Sensors
Battery or Solar Powered Devices
Sensor Network Powered by Energy Scavenging
3PEAK and the 3PEAK logo are registered trademarks of
3PEAK INCORPORATED. All other trademarks are the property
of their respective owners.
I
CC
POWER IN
LOAD
R3
V
OUT
TP2111
Ultra-low Supply Current Op-amps:
Supply Current
GBWP
Single
With Shut-down
Dual
Quad
0.3 μA
10 kHz
TP2111
TP2111N
TP2112
TP2114
0.6 μA
18 kHz
TP2121
TP2121N
TP2122
TP2124
4 μA
150 kHz
TP1511
TP1511N
TP1512
TP1514
R2
R1
V
OUT
½
I
CC
R
3
(
R
1
1)
R
2
TP2111 in Low Side Battery Current Sensor
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REV1.0
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TP2111/TP2111N/TP2112/TP2114
Nanopower 300nA, 1.8V, Rail-to-Rail Input/Output Op-amps
Pin Configuration
(Top View)
TP2111
5-Pin SOT23/SC70
(-T and -C Suffixes)
Out
﹣Vs
+In
1
2
3
4
-In
5
﹢Vs
Out
﹣Vs
+In
1
2
3
TP2111N
6-Pin SOT23
(-T Suffix)
6
5
4
﹢Vs
SHDN
-In
Out A
﹣In
A
﹢In
A
﹣Vs
TP2112
8-Pin SOIC/MSOP
(-S and -V Suffixes)
1
2
3
4
A
TP2114
14-Pin SOIC/TSSOP
(-S and -T Suffixes)
﹢Vs
Out B
﹣In
B
﹢In
B
Out A
﹣In
A
﹢In
A
﹢Vs
﹢In
B
﹣In
B
Out B
1
2
A
D
8
7
B
14
13
12
11
10
B
C
Out D
﹣In
D
﹢In
D
﹣Vs
﹢In
C
﹣In
C
Out C
6
5
3
4
5
6
7
TP2111
8-Pin SOIC
(-S Suffix)
NC
﹣In
﹢In
﹣Vs
1
2
3
4
8
7
6
5
NC
﹢Vs
Out
NC
NC
﹣In
﹢In
﹣Vs
TP2111N
8-Pin MSOP/SOIC
(-V and -S Suffixes)
1
2
3
4
8
7
6
5
SHDN
﹢Vs
Out
NC
9
8
Order Information
Marking
Information
B1TYW
(1)
B1CYW
(1)
2111S
B1NYW
(1)
2111N
2111NS
B12S
B12V
B14S
B14T
Model Name
Order Number
TP2111-TR
Package
5-Pin SOT23
5-Pin SC70
8-Pin SOIC
6-Pin SOT23
8-Pin MSOP
8-Pin SOIC
8-Pin SOIC
8-Pin MSOP
14-Pin SOIC
14-Pin TSSOP
Transport Media, Quantity
Tape and Reel, 3,000
Tape and Reel, 3,000
Tape and Reel, 4,000
Tape and Reel, 3,000
Tape and Reel, 3,000
Tape and Reel, 4,000
Tape and Reel, 4,000
Tape and Reel, 3,000
Tape and Reel, 2,500
Tape and Reel, 3,000
TP2111
TP2111-CR
TP2111-SR
TP2111N-TR
TP2111N
TP2111N-VR
TP2111N-SR
TP2112-SR
TP2112-VR
TP2114-SR
TP2114-TR
TP2112
TP2114
Note (1): ‘YW’ is date coding scheme. 'Y' stands for calendar year, and 'W' stands for single workweek coding scheme.
Absolute Maximum Ratings
Note 1
Supply Voltage: V
+
– V
–
....................................6.0V
Input Voltage............................. V
–
– 0.3 to V
+
+ 0.3
Input Current: +IN, –IN, SHDN
Note 2
.............. ±
10mA
SHDN Pin Voltage……………………………V
–
to V
+
Output Current: OUT.................................... ±20mA
Output Short-Circuit Duration
Note 3
…......... Indefinite
Operating Temperature Range.......–40° to 125°
C
C
Maximum Junction Temperature................... 150°
C
Storage Temperature Range.......... –65° to 150°
C
C
Lead Temperature (Soldering, 10 sec) ......... 260°
C
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum
Rating condition for extended periods may affect device reliability and lifetime.
Note 2:
The inputs are protected by ESD protection diodes to each power supply. If the input extends more than 500mV beyond the power supply, the input
current should be limited to less than 10mA.
2
REV1.0
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TP2111/TP2111N/TP2112/TP2114
Nanopower 300nA, 1.8V, Rail-to-Rail Input/Output Op-amps
Note 3:
A heat sink may be required to keep the junction temperature below the absolute maximum. This depends on the power supply voltage and how many
amplifiers are shorted. Thermal resistance varies with the amount of PC board metal connected to the package. The specified values are for short traces
connected to the leads.
ESD, Electrostatic Discharge Protection
Symbol
HBM
CDM
Parameter
Human Body Model ESD
Charged Device Model ESD
Condition
MIL-STD-883H Method 3015.8
JEDEC-EIA/JESD22-C101E
Minimum Level
8
2
Unit
kV
kV
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REV1.0
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TP2111/TP2111N/TP2112/TP2114
Nanopower 300nA, 1.8V, Rail-to-Rail Input/Output Op-amps
5V Electrical Characteristics
The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 27° C.
V
SUPPLY
= 5V, V
CM
= V
OUT
= V
SUPPLY
/2, R
L
= 100KΩ, C
L
=60pF, V
SHDN
is unconnected.
SYMBOL
V
OS
V
OS
TC
I
B
I
OS
V
n
e
n
R
IN
C
IN
CMRR
V
CM
PSRR
A
VOL
V
OL
, V
OH
R
OUT
R
O
I
SC
V
DD
I
Q
PM
GM
GBWP
t
S
SR
FPBW
I
Q(off)
I
SHDN
I
LEAK
V
IL
V
IH
PARAMETER
Input Offset Voltage
Input Offset Voltage Drift
Input Bias Current
Input Offset Current
Input Voltage Noise
Input Voltage Noise Density
Input Resistance
Input Capacitance
Common Mode Rejection Ratio
Common-mode Input Voltage
Range
Power Supply Rejection Ratio
Open-Loop Large Signal Gain
Output Swing from Supply Rail
Closed-Loop Output Impedance
Open-Loop Output Impedance
Output Short-Circuit Current
Supply Voltage
Quiescent Current per Amplifier
Phase Margin
Gain Margin
Gain-Bandwidth Product
Settling Time, 1.5V to 3.5V, Unity
Gain
Settling Time, 2.45V to 2.55V,
Unity Gain
Slew Rate
Full Power Bandwidth
Note 2
Supply Current in Shutdown
Note 1
Shutdown Pin Current
Note 1
Output Leakage Current in
Shutdown
Note 1
SHDN Input Low Voltage
Note 1
SHDN Input High Voltage
Note 1
V
CM
= V
DD
/2
T
A
=27 ° C
T
A
=85 ° C
T
A
=125 ° C
f = 0.1Hz to 10Hz
f = 1kHz
Differential
Common Mode
V
CM
= 0.1V to 4.9V
CONDITIONS
●
MIN
-1.5
TYP
± 0.1
0.4
0.1
78
4.5
0.1
10
265
> 100
2.9
5
130
MAX
+1.5
UNITS
mV
μV/°
C
fA
fA
pA
fA
μV
P-P
nV/√Hz
GΩ
pF
dB
V
+
+0.3
90
120
120
5
0.4
2.6
20
300
64
-10
10
0.5
0.55
0.075
0.078
6
300
3
-10
-10
-3.6
3.6
●
●
0.5
1.0
6.0
500
V
dB
dB
dB
mV
Ω
Ω
mA
V
nA
°
dB
kHz
ms
mV/μs
Hz
nA
pA
pA
V
V
●
●
80
V
–
–0.3
60
80
80
V
OUT
= 2.5V, R
LOAD
= 100kΩ
V
OUT
= 0.1V to 4.9V, R
LOAD
= 100kΩ
R
LOAD
= 100kΩ
G = 1, f = 1kHz, I
OUT
= 0
f = 1kHz, I
OUT
= 0
Sink or source current
●
●
●
1.8
●
R
LOAD
= 100kΩ, C
LOAD
= 60pF
R
LOAD
= 100kΩ, C
LOAD
= 60pF
f = 1kHz
0.1%
0.01%
0.1%
0.01%
A
V
= 1, V
OUT
= 1.5V to 3.5V, C
LOAD
=
60pF, R
LOAD
= 100kΩ
2V
P-P
V
SHDN
= 0.5V
V
SHDN
= 1.5V
V
SHDN
= 0V, V
OUT
= 0V
V
SHDN
= 0V, V
OUT
= 5V
Disable
Enable
Note 1:
Specifications apply to the TP2111N with shutdown.
Note 2:
Full power bandwidth is calculated from the slew rate FPBW = SR/π • V
P-P.
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TP2111/TP2111N/TP2112/TP2114
Nanopower 300nA, 1.8V, Rail-to-Rail Input/Output Op-amps
Typical Performance Characteristics
Small-Signal Step Response, 100mV Step
2.60
4
Large-Signal Step Response, 2V Step
2.55
50mV/div
2.50
Gain=+1
V
IN
Step=100mV
C
LOAD
=60pF
3
Gain=+1
C
LOAD
=60pF
R
LOAD
=100kΩ
2
2.45
2.40
3
5
7
2ms/div
9
1
2
5
3ms/div
8
11
Open-Loop Gain and Phase
150
1V/div
80
Phase Margin vs. C
LOAD
(Stable for Any C
LOAD
)
GAIN AND PHASE (dB)
100
Phase
50
Gain
Gain=1
R
LOAD
=100kΩ
C
LOAD
=60pF
60
0
-50
1E-3
1E-1
1E+1
1E+3
1E+5
1E+7
Phase (dB)
Gain=+1
R
LOAD
=100kΩ
40
20
0
1E+0
1E+1
FREQUENCY (Hz)
1E+2
1E+3
1E+4
Load Capacitance (pF)
1E+5
1E+6
Input Voltage Noise Spectral Density
10k
150
Common-Mode Rejection Ratio
Input Noise Voltage (nV/√Hz)
120
1k
CMRR (dB)
90
60
100
1E-1
1E+0
1E+1
1E+2
1E+3
30
1E-3
1E-1
1E+1
Frequency (Hz)
1E+3
1E+5
1E+7
FREQUENCY (Hz)
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