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LF353N Dual JFET Input Op-Amp

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The LM353N is a Dual Package Input JFET Operational Amplifier. That is the input of these op-amp are connected through a high-voltage JFET making it suitable for low-noise, low-current and fast switching audio applications commonly used in Dual supply operation.

 

Pin Configuration

Pin Number

Pin Name

Description

1

OUTPUT-A

Output of Op-Amp 1

2

INPUT- A(-)

Inverting Input of Op-Amp 1

3

INPUT- B(+)

Non-Inverting Input of Op-Amp 1

4

VEE,GND

Ground or Negative Supply Voltage

5

INPUT- B(+)

Non-Inverting Input of Op-Amp 2

6

INPUT- B(-)

Inverting Input of Op-Amp 2

7

OUTPUT B

Output of Op-Amp 2

8

VCC

Positive Supply Voltage

 

 

LF353N features and specifications

  • Dual Op-Amp with JFET Input
  • Supply Voltage: ±18V
  • Supply Current: 6.5mA (max)
  • Low Input Noise Voltage and Noise Current
  • Bandwidth Gain: 4MHz
  • High Input Impedance and Slew rate
  • Available in 8-pin SOIC and PDIP Package

 

LF393N Equivalent

TL074, LM1558, MCP6002

 

LF393N JFET Input Op-Amp

The LM393N is a Dual Input JEFET from Texas Instruments. Since the Op-Amp inputs are feed through JFET they provide high input impedance and wide bandwidth (4MHz) with high slew rate (13V/uS).  It also provides low input noise and bias current making the IC suitable for Audio amplifier applications.

The Op-Amp is designed to be used in dual supply voltage (±18V), using with single supply will limit the output voltage to 0.7V for low and 1.5V for high. Hence the Op-Amp is more widely used in analog circuit or audio circuits. The digital circuit equivalent for LF393N will be MCP6002 from Microchip.

 

Applications

  • Low-noise Audio circuits
  • High-Input Impedance designs
  • Sample and Hold Circuit
  • High Speed Integrator

 

2D-Model

LF353N Dual JFET Input Op-Amp 2-D Model

 

 

Component Datasheet