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Product details

Parameters

Number of channels (#) 2 Total supply voltage (Max) (+5V=5, +/-5V=10) 44 Total supply voltage (Min) (+5V=5, +/-5V=10) 10 Rail-to-rail In to V+ GBW (Typ) (MHz) 4 Slew rate (Typ) (V/us) 15 Vos (offset voltage @ 25 C) (Max) (mV) 3 Iq per channel (Typ) (mA) 1.8 Vn at 1 kHz (Typ) (nV/rtHz) 25 Rating Catalog Operating temperature range (C) 0 to 70 Offset drift (Typ) (uV/C) 7 Features Input bias current (Max) (pA) 200 CMRR (Typ) (dB) 100 Output current (Typ) (mA) 25 Architecture FET open-in-new Find other General-purpose op amps

Package | Pins | Size

PDIP (P) 8 93 mm² 9.81 x 9.43 open-in-new Find other General-purpose op amps

Features

  • Internally Trimmed Offset Voltage: 1 mV (Max)
  • Input Offset Voltage Drift: 7 µV/°C (Typ)
  • Low Input Bias Current: 50 pA
  • Low Input Noise Current: 0.01 pA / √Hz
  • Wide Gain Bandwidth: 3 MHz (Min)
  • High Slew Rate: 10V/µs (Min)
  • Low Supply Current: 1.8 mA/Amplifier
  • High Input Impedance: 1012Ω
  • Low Total Harmonic Distortion: ≤0.02%
  • Low 1/f Noise Corner: 50 Hz
  • Fast Settling Time to 0.01%: 2 µs
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Description

These devices are low cost, high speed, JFET input operational amplifiers with very low input offset voltage and input offset voltage drift. They require low supply current yet maintain a large gain bandwidth product and fast slew rate. In addition, well matched high voltage JFET input devices provide very low input bias and offset currents. The LF412-N dual is pin compatible with the LM1558, allowing designers to immediately upgrade the overall performance of existing designs.

These amplifiers may be used in applications such as high speed integrators, fast D/A converters, sample and hold circuits and many other circuits requiring low input offset voltage and drift, low input bias current, high input impedance, high slew rate and wide bandwidth.

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Technical documentation

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Type Title Date
* Datasheet LF412-N Low Offset, Low Drift Dual JFET Input Operational Amplifier datasheet (Rev. F) Oct. 27, 2014
Technical articles What is an op amp? Jan. 21, 2020
Technical articles Designing tiny microphone circuits with the industry’s smallest op amp Apr. 12, 2018
Technical articles How to lay out a PCB for high-performance, low-side current-sensing designs Feb. 06, 2018
Technical articles Low-side current sensing for high-performance cost-sensitive applications Jan. 22, 2018
More literature The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Application notes AN-301 Signal Conditioning for Sophisticated Transducers (Rev. B) May 06, 2013
Application notes AN-272 Op Amp Booster Designs (Rev. B) Apr. 23, 2013
Application notes Effect of Heavy Loads on Accuracy and Linearity of Op Amp Circuits (Rev. B) Apr. 22, 2013
Application notes AN-447 Protection Schemes for BI-FET Amplifiers and Switches May 02, 2004

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

The Universal OPAMPEVM is a series of general purpose blank circuit boards that simplify prototyping circuits for a variety of IC package types. The evaluation module board design allows many different circuits to be constructed easily and quickly. Five models are offered with each targeted for (...)

Design tools & simulation

SIMULATION MODELS Download
SNOM258.ZIP (1 KB) - PSpice Model
SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide
CALCULATION TOOLS Download
Analog engineer's calculator
ANALOG-ENGINEER-CALC — The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)

CAD/CAE symbols

Package Pins Download
PDIP (P) 8 View options

Ordering & quality

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