TP2111/TP2111N/TP2112/TP2114
3PEAK
Nanopower 300nA, 1.8V, Rail-to-Rail Input/Output Op-amps
Features
Description
The TP211x are ultra-low power, precision CMOS
op-amps that provide a constant 10kHz bandwidth
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
and 10mV/μs slew rate with only 300nA quiescent
current per amplifier. The ground-sensing input
common-mode range, guaranteed 1.5mV VOS and
ultra-low 0.4μV/°C VOS TC enables accurate and
stable measurement for both high side and low side
current sensing.
Ultra-low VOS 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
The TP211x have carefully designed CMOS input
stage that outperforms competitors with typically
0.1fA IB. This ultra-low input current significantly
reduces IB and IOS 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.
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°C to 125°C Operation Range
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.
Robust 8 kV – HBM and 2 kV – CDM ESD Rating
Green, Popular Type Package
Applications
Current Sensing
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.
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.
ICC
POWER IN
LOAD
Ultra-low Supply Current Op-amps:
R3
Supply Current
GBWP
0.3 μA
0.6 μA
4 μA
VOUT
TP2111
10 kHz
TP2111
18 kHz
TP2121
150 kHz
TP1511
Single
With Shut-down TP2111N TP2121N TP1511N
Dual
TP2112
TP2114
TP2122
TP2124
TP1512
TP1514
R2
R1
Quad
R
1
VOUT ICC R3 ( 1)
R2
TP2111 in Low Side Battery Current Sensor
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