LM7121IM/NOPB

Current - Input Bias:	5.2µA
Base Part Number:	LM7121
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	4.5 V ~ 33 V, ±2.25 V ~ 16.5 V
Current - Output / Channel:	71mA
Current - Supply:	5.3mA
Voltage - Input Offset:	900µV
Series:	--
-3db Bandwidth:	235MHz
Gain Bandwidth Product:	175MHz
Slew Rate:	1300 V/µs
Output Type:	--
Number of Circuits:	1
Amplifier Type:	Voltage Feedback
Part Status:	Active
Packaging:	Tube

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LM7121IM/NOPB Application Field and Working Principle

LM7121IM/NOPB is an instrumentation, operational amplifier (Op Amp) and buffer amplifier from Texas Instruments. It is an economical choice for applications that require current, voltage and temperature sensing. The LM7121IM/NOPB features a wide range of specifications for high precision performance and includes the unique advantage of having its temperature coefficient temperature compensated to make sure it stays accurate over time.

Applications

The LM7121IM/NOPB can be used in a wide range of applications including voltage regulation and protection, such as in industrial equipments, burn in and test equipment, laboratory instrumentation and medical devices. Additionally, it can also be used in multiplexers, current loop transducer amplifiers, digital to analog converters, video switchers, data acquisition systems and indicator bridge circuits.

Working Principle

The LM7121IM/NOPB is an inverting amplifier that consists of a matched NPN plus a matched PNP devices. It has high voltage gain, wide unity-gain bandwidth and superior phase characteristics, making it suitable for general-purpose high-precision amplification functions. The Op Amp ensures high-accuracy output levels with minimal errors. The typical input ranges for the LM7121IM/NOPB is 0 to +10 volts, although other input ranges are also available. The LM7121IM/NOPB amplifies the input signal and then inverts it at the output stage, resulting in a negative output. This can be used for applications that require the output to have a negative voltage swing. The LM7121IM/NOPB supports a wide range of gains and is compensated for temperature variation, ensuring high accuracy and stability. The output offset voltage is also low, ensuring high accuracy over time. The LM7121IM/NOPB also offers impressive power consumption, low noise, good transimpedance and large output voltage capability. The transistor biasing is also excellent, ensuring high performance over temperature and good thermal stability.

Conclusion

The LM7121IM/NOPB is an instrumentation, operational amplifier and buffer amplifier from Texas Instruments. It is a versatile product with a range of applications, and has superior phase characteristics, wide unity-gain bandwidth and a high voltage gain. It also offers impressive power consumption, low noise, good transimpedance and large output voltage capability. The LM7121IM/NOPB is an economical choice for applications that require current, voltage and temperature sensing.

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