Series:	--
Packaging:	Tube
Part Status:	Active
Amplifier Type:	General Purpose
Number of Circuits:	2
Output Type:	--
Slew Rate:	4 V/µs
Gain Bandwidth Product:	14MHz
Current - Input Bias:	200nA
Voltage - Input Offset:	800µV
Current - Supply:	2.3mA
Voltage - Supply, Single/Dual (±):	6 V ~ 36 V, ±3 V ~ 18 V
Operating Temperature:	-20°C ~ 75°C
Mounting Type:	Through Hole
Package / Case:	8-DIP (0.300", 7.62mm)
Supplier Device Package:	8-DIP

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NJM2121D Application Field and Working Principle

Linear -- Amplifiers -- Instrumentation, OP Amps, Buffer Amps

The NJM2121D is an integrated circuit (IC) designed to operate as an instrumentation amplifier. It is also known as a "programmable amplifier" because its characteristic performance can be adjusted to a wide range of different applications. Its major application fields include low-noise signal conditioning for applications such as strain gauges, pressure transducers, and bridge selectors. It is perhaps most commonly used in the audio field, however, where its low noise, high gain, and wide frequency range make it ideal for applications such as microphones and turntables. The NJM2121D is a relatively new integrated circuit, but it has already found its way into a variety of applications. Its component density and low power consumption make it attractive for manufacturers of portable electronics and some automotive applications. And its low noise and high gain make it well suited for medical instrumentation, audio amplifiers, and robotic applications. The NJM2121D is a low-power IC designed to operate as an instrumentation amplifier, or "programmable amplifier." It provides a high dynamic range, low noise operation, and wide bandwidth. It can be used to amplify almost any type of signal or data, and its low power consumption makes it attractive to designers of portable electronics and small automotive applications. The NJM2121D is designed to be applied in a single-ended configuration, with a reference voltage relative to its output. It is also designed to be integrated into a standard 8-pin dual-in-line (DIL) package. The NJM2121D\'s working principle is based on the fact that its internal circuitry is configured to perform dc amplification plus differential line level conversion. Furthermore, its output stage is designed to provide a capability for differential linear operation, depending on user parameters. This means that the amplifier\'s function can be programmed to provide a variety of applications, from low-noise instrumentation amplification to high-gain power amplifiers for audio. In its normal operating state, the NJM2121D is configured to provide some of the highest gain and widest frequency range of any IC amplifier. It is designed to achieve virtually zero distortion and low noise noise in its various operating modes. This is due to its low input noise and high common-mode rejection ratio (CMRR). Additionally, its high slew rate and wide adjustable gain enable it to be used in audio applications, as well as medical and robotic applications. To summarize, the NJM2121D is an integrated circuit designed to operate as an instrumentation amplifier, or "programmable amplifier." It has wide application fields and is particularly useful in the audio, medical, and robotic fields. Its main features are its low-power consumption, high dynamic range, and low noise operation. Furthermore, its wide adjustable gain and high common-mode rejection ratio make it suitable for a variety of applications.

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