NJM12904D

Current - Input Bias:	20nA
Supplier Device Package:	8-DIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	2 V ~ 14 V
Current - Output / Channel:	40mA
Current - Supply:	700µA
Voltage - Input Offset:	1mV
Series:	--
Gain Bandwidth Product:	1.5MHz
Slew Rate:	0.7 V/µs
Output Type:	--
Number of Circuits:	2
Amplifier Type:	General Purpose
Part Status:	Active
Packaging:	Tube

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

NJM12904D application field and working principle

Introduction

NJM12904D is a type of instrumentation amplifier (specifically, a differential operational amplifier) manufactured by JRC. It features two differential inputs and two unbalanced outputs, making it a useful device for linear applications. This article will cover the application field and working principle of the NJM12904D.

Application Field

The NJM12904D is particularly useful in applications requiring stability, low error and low distortion. Its two differential inputs make it perfect for precision conditioning of signals such as strain gauges, temperature sensors, and light sensors, where the nature of the input signals can be unpredictable. The NJM12904D is also ideal for applications with high common mode voltages, such as motor control circuits, as it can still accurately read the signal. Other common applications of the NJM12904D include analog-to-digital (ADC) circuits, power supplies, audio circuits, medical electronics, and circuit isolation.

Working Principle

At its core, the NJM12904D consists of two differential amplifiers in an op-amp configuration. When a signal is applied to the input terminals, internal voltage comparators compare the difference in voltage between the two inputs. This voltage difference is amplified (or attenuated) by the op-amp’s gain and then output on the two output pins. The NJM12904D is also equipped with a number of features to ensure accurate, stable operation. It features integrated common-mode rejection and offset adjustment, allowing for precise and consistent operation. The NJM12904D also offers a selectable gain feature, which allows the user to adjust the amplifier’s gain by adjusting a single external resistor. This can increase the device’s flexibility.

Conclusion

The NJM12904D is a versatile instrumentation amplifier that is particularly well-suited for linear applications requiring stability, low error and low distortion. It features two differential inputs and two unbalanced outputs, making it perfect for precision conditioning of signals such as strain gauges, temperature sensors and light sensors. The NJM12904D also offers integrated common-mode rejection and offset adjustment, as well as selectable gain, allowing for precise operation in a variety of applications.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description