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LF353P

Dual JFET-Input Op-Amp, 4MHz GBW, 13V/us SR, 200pA Ib, PDIP-8

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Manufacturer Part：

LF353P

Package：

PDIP-8 (9.7 x 6.35 x 4.57 mm)

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Description

Product Overview

The LF353P is a JFET-input dual operational amplifier manufactured by Texas Instruments. It features very low input bias current, high input impedance, and wide bandwidth. The JFET input stage provides low noise and low offset, making it suitable for high-impedance signal processing applications. It operates from dual or single supplies and is pin-compatible with the standard 1458 dual op-amp.

Key Specifications

Number of Channels 2
Supply Voltage Range +/-3.5V to +/-18V
Gain Bandwidth Product 4MHz
Slew Rate 13V/us
Input Offset Voltage 10mV max
Input Bias Current 200pA typical
Input Impedance 10^12 ohm typical
Operating Temperature 0C to 70C
Package PDIP-8

Features

  • JFET input for extremely low input bias current
  • Very high input impedance (10^12 ohm)
  • High slew rate of 13V/us
  • Wide gain-bandwidth product of 4MHz
  • Low input noise voltage and current
  • Internally trimmed offset voltage
  • Pin-compatible with 1458 dual op-amp

Applications

  • High-impedance signal amplification
  • Active filter circuits
  • Sample-and-hold amplifiers
  • Audio signal processing
  • Instrumentation front-ends

The LF353P is a JFET-input dual operational amplifier from Texas Instruments designed for high-impedance and low-noise signal processing. With input bias current of only 200pA and input impedance of 10^12 ohm, it excels in applications requiring minimal loading of signal sources. The 4MHz gain-bandwidth product and 13V/us slew rate provide excellent dynamic performance for audio and instrumentation applications. The device is pin-compatible with the 1458, offering a direct JFET upgrade path.

The LF353P uses a JFET differential input pair providing extremely high input impedance and very low input bias current. The JFET input stage is followed by a bipolar gain stage and class AB output stage. Internal frequency compensation ensures stability at unity gain. The device features an internal offset voltage trim during manufacturing. The JFET inputs allow the common-mode input voltage range to include the positive supply rail, enabling use in single-supply configurations with appropriate biasing.

Pin Name Type Function
1 1OUT Output Amplifier 1 output
2 1IN- Input Amplifier 1 inverting input
3 1IN+ Input Amplifier 1 non-inverting input
4 V- Power Negative supply
5 2IN+ Input Amplifier 2 non-inverting input
6 2IN- Input Amplifier 2 inverting input
7 2OUT Output Amplifier 2 output
8 V+ Power Positive supply
  • High-impedance sensor and transducer amplifiers
  • Active filter and equalizer circuits
  • Audio preamplifier and signal processing
  • Sample-and-hold and integrator circuits
  • Medical instrumentation front-ends
Manufacturer Part Number Package Notes
Texas Instruments TL082CP PDIP-8 Similar JFET dual op-amp
onsemi TL082ACP PDIP-8 Lower offset voltage version
STMicroelectronics TL082CN PDIP-8 ST alternative JFET dual
Texas Instruments OPA2134PA PDIP-8 Audio-grade FET dual upgrade
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We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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