KF351

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Amplifier Type:	J-FET
Number of Circuits:	1
Output Type:	--
Slew Rate:	13 V/µs
Gain Bandwidth Product:	4MHz
Current - Input Bias:	50pA
Voltage - Input Offset:	5mV
Current - Supply:	2.3mA
Voltage - Supply, Single/Dual (±):	--
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Through Hole
Package / Case:	8-DIP (0.300", 7.62mm)
Supplier Device Package:	8-DIP
Base Part Number:	KF351

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Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

KF351 is a linear operational amplifier (op amp) that has been in production since the 1970s. It is often used as a buffer amplifier or general-purpose amplifier, and has a wide range of applications. Its low noise, wide temperature range and power-efficient design make it a popular choice for the professional engineer.

Description

The KF351 is a low-voltage op amp typically operated at 5V. It is a single-supply, DC and AC coupled, high-speed amplifier with a typical gain-bandwidth product of 1.1 GHz. The input bias current is only 2 pA, and the output voltage swing is 1.5V. It has an input range of 0-4.75V and an output range of 0-4.75V. The KF 351 is designed for both wide and narrow bandwidth applications. It has a wide supply voltage from +3V to +15V and low power dissipation of 0.6 watts. It also has an input offset voltage of 1.5mV and a wide frequency response from DC to 1MHz, making it suitable for a variety of signal conditioning applications.

Applications

The KF351 is well suited for many linear amplification applications such as signal conditioning, low noise buffering, instrumentation amplifiers, active filters, voltage regulation, and active limiters. It is also ideal for power management applications such as audio power amplifiers and pulse-width modulation (PWM) control. Its strong immunity to power surges and good thermal drift properties make it an excellent choice for industrial, automotive and aerospace applications.

Working Principle

An operational amplifier is an electronic device that amplifies a signal by using one or more inputs. It is an analog electronic or integrated circuit (IC) device, usually consisting of several transistors, resistors, and capacitors. The integration of the components into a single package makes it a cost-effective and reliable choice for many applications. As with all op amps, the KF351 amplifier works by taking the input from a voltage source, such as a battery, and amplifying it. The gain is determined by the ratio of the feedback resistors and input resistors. The way in which this works is that the output voltage is equal to the input voltage multiplied by the gain. For example, if the gain is 10, then the output voltage is 10 times larger than the input voltage. The operation of the KF351 is such that the output voltage is entirely related to the input voltage by means of the gain-bandwidth product and other internal features. The input signal is applied to the two input terminals, the output voltage is then created by the amplifier circuit. An important characteristic of the KF351 is that it is DC and AC-coupled, meaning that it can amplify both types of signal.

Advantages

The KF351 has many advantages that make it an ideal choice for a variety of applications. It has a wide range of advantages including low cost, low noise, high speed, low power consumption, and wide temperature range. Because the KF351 is a single-supply op amp, it can be used in circuits that are powered by single supplies. It is also an excellent choice for audio and RF signal conditioning applications due to its high gain and wide bandwidth. The flexibility of the KF 351 makes it a versatile choice for many projects. Its small size and high frequency response allow it to be used in a variety of applications. It is also a reliable and cost-effective choice for long-term operation in environments with wide temperature ranges and high-voltage/ high-frequency applications.

Conclusion

The KF351 is a versatile and reliable op-amp with a wide range of applications. It is an excellent choice for linear amplification applications such as signal conditioning, low noise buffering, instrumentation amplifiers, active filters, voltage regulation and active limiters. It is also an ideal choice for power management applications such as audio power amplifiers and pulse-width modulation (PWM) control. Its strong immunity to power surges, low noise level, and wide temperature range make it a well-suited choice for a variety of applications.

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