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TP2121

更新时间： 2024-02-03 18:36:07
品牌 Logo 应用领域
思瑞浦 - 3PEAK /
页数 文件大小 规格书
18页 606K
描述
1.8V, 600nA Nanopower, Rail-to-Rail Input/Output Op-amps

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TP2121 数据手册

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TP2121/TP2121N/TP2122/TP2124  
1.8V, 600nA Nanopower, Rail-to-Rail Input/Output Op-amps  
Features  
Description  
The TP212x are ultra-low power, precision CMOS  
op-amps featuring a maximum supply current of  
950nA per amplifier with an ultra-low typical input  
bias current of 1fA. Analog trim and calibration  
routine reduce input offset voltage to below 1.5mV,  
and the precision temperature compensation  
technique makes offset voltage temperature drift at  
0.5μV/°C, which allowing use of the TP212x in  
systems with high gain without creating excessively  
Supply Current: 950nA Maximum /Amplifier  
Stable 18kHz GBWP with 10mV/μs Slew Rate  
Offset Voltage: 1.5mV Maximum  
Ultra-low VOS TC: 0.5μV/°C  
Ultra-low Input Bias Current: 1fA Typical  
High 120dB Open-Loop Voltage Gain  
Unity Gain Stable for 1,000nF Capacitive Load  
Rail-to-Rail Input/Output Voltage Range  
Outputs Source and Sink 20mA of Load Current  
No Phase Reversal for Overdriven Inputs  
Ultra-low Single-Supply Operation Down to +1.8V  
Shutdown Current: 3nA Typical (TP2121N)  
–40°C to 125°C Operation Range  
large output offset errors.  
The TP212x are unity gain stable with 1,000nF  
capacitive load with a constant 18kHz GBWP,  
10mV/μs slew rate, which make them appropriate  
for low frequency applications, such as battery  
current monitoring and sensor conditioning. The  
TP212x can operate from a single-supply voltage of  
+1.8V to +6.0V or a dual-supply voltage of ±0.9V to  
±3.0V. Beyond the rails input and rail-to-rail output  
characteristics allow the full power-supply voltage to  
be used for signal range.  
Robust 8kV – HBM and 2kV – CDM ESD Rating  
Green, Popular Type Package  
The combined features make the TP212x ideal  
choices for battery-powered applications because  
they minimize errors due to power supply voltage  
variations over the lifetime of the battery and  
maintain high CMRR even for a rail-to-rail input  
op-amp. Mobile accessories, wireless remote  
sensing, backup battery sensors, and single-Li+ or  
2-cell NiCd/Alkaline battery powered systems can  
benefit from the features of the TP212x op-amps.  
Applications  
Handsets and Mobile Accessories  
Current Sensing  
Wireless Remote Sensors, Active RFID Readers  
Environment/Gas/Oxygen Sensors  
Threshold Detectors/Discriminators  
Low Power Filters  
For applications that require power-down, the  
TP2121N has a low-power shutdown mode that  
reduces supply current to 3nA, and forces the output  
into a high-impedance state.  
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.  
Ultra-low Supply Current Op-amps:  
Supply Current  
GBWP  
0.3 μA  
0.6 μA  
4 μA  
10 kHz  
18 kHz  
150 kHz  
TP1511  
Single  
TP2111  
TP2121  
With Shut-down TP2111N TP2121N TP1511N  
Dual  
TP2112  
TP2114  
TP2122  
TP2124  
TP1512  
TP1514  
Quad  
R
1
VOUT ICC R3 ( 1)  
R2  
TP2121 in Low Side Battery Current Sensor  
www.3peakic.com  
REV1.2  
1
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