The input audio signal is initially buffered by the op-amp IC2a, and the gain during this buffering stage can be adjusted by the POT R7. Circuit Diagram of 3-way Crossover Network The circuit’s operation is very easy and straightforward. The IC LF353N offers wide bandwidth, low bias current, and low input drift current thanks to its JFET front-end. The National Semiconductor LF353N op-amp with 2 JFET inputs and an internally compensated input bias is the heart of the circuit. Consider an application circuit diagram of a 3-way crossover network in audio systems to learn how to use the LF353N op-amp IC.īelow is a schematic diagram of an active three-way crossover circuit commonly used in audio amplifier systems. These types of devices produce low noise with offset drift voltage. The LF353N op-amps are mainly used in high-speed integrators, Digital to Analog converters, sample and hold circuits, and many other circuits with high input impedance and low input bias current. Equivalent input noise current is 0.01pA/√Hz.Īlternatives of LF353N Op-Amp are TL074, MCP6002, and LM1558 are the equivalents or alternatives of LF353N Op-Amp.Equivalent input noise voltage Rs=100 Ohms is 16 nV/√Hz.The power supply current is 3.6mA to 6.5mA.Power supply rejection ratio (PSRR) is 70-100dB.CMRR (common-mode rejection ratio) is 70-100dB.

The input voltage range is ☑1V to ☑5/-12V.Output voltage swing = 10kOhms is ☑2V to ☑3.5V.Maximum signal voltage gain RL=2kohms is 25-100V/mV and is 15.Input offset current is 25 to 100pA and 4nA Input bias current 50-200nA and 8nA Input resistance is 10¹²Ohms.Input offset voltage drift 0☌≤T≤+70☌) is 10µV/ ☌.Input offset voltage 0☌≤T≤+70☌) is 5mV to 10mV.Low total harmonic distortion – ≤0.02%.The internal trimmed offset voltage is 10mV.Input impedance (10¹²Ohms) and slew rate (13V/µS) is high.Input noise voltage (25nV√Hz) and noise current (0.01pA/√Hz) is low.The short temperature range is -65☌ to +150☌.The range of operating temperature is 0☌ to +70☌.The duration of the output short circuit continues.It is an 8-pin JFET Dual op-amp available in PDIP and SOIC packages.The LF353N OP-AMP Technical specifications are listed below. Pin8 (VCC Or V+): This pin refers to the positive voltage supply for the chip.

Ic1a op amp