LF357 DATASHEET PDF

LF357 DATASHEET PDF

LF JFET Input Operational Amplifiers. These are the first monolithic JFET input operational amplifiers to incorporate well matched, high voltage JFETs on the. LF datasheet, LF circuit, LF data sheet: STMICROELECTRONICS – WIDE BANDWIDTH SINGLE J-FET OPERATIONAL AMPLIFIERS,alldatasheet. LF datasheet, LF circuit, LF data sheet: TI – LF/LF/LF/ LF/LF/LF/LF JFET Input Operational Amplifiers,alldatasheet.

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Operating the part near the maximum power dissipation may cause the part to operate outside specified limits. Negative Current Limit Figure 8.

The value of the added capacitor should be such that the RC time constant of this capacitor and the resistance it parallels is greater than or equal to the original feedback pole time constant. Documents Flashcards Grammar checker. However, if the feedback pole is less than approximately six times the expected 3-dB frequency a lead capacitor should be placed from the output to the input of the op amp.

First, the user must not ignore the surface leakage of the PCB, even though it may sometimes appear acceptably low, because under conditions of high humidity or dust or contamination, the surface leakage will be appreciable. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. We recommend that these same precautions be adhered to, during all phases of inspection, test and assembly.

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Input Bias Current Figure 3. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Output Impedance Figure Equivalent Input Noise Voltage Figure Fortunately, the techniques of obtaining low leakages are quite simple. Due to limited production test time, the input bias currents measured are correlated to junction temperature.

TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. The drain currents for the amplifiers are therefore essentially independent of supply voltage.

Products Applications Audio www. Air is an excellent insulator. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Input Bias Current Figure 4. These devices can replace expensive hybrid and module FET operational amplifiers.

Exceeding the negative common-mode limit on either input lf537 force the output to a high state, potentially causing a reversal of phase to the output. To have a significant effect, guard rings must be placed on both the top and bottom of the PCB. TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.

Testing and other quality datasheft techniques are used to the extent TI deems necessary to support this warranty. TI is not responsible or liable for such altered documentation. In this case you may have datawheet forego some of the advantages of PCB construction, but the advantages are sometimes well worth the effort of using point-to-point up-in-the-air wiring.

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When the LFx5x is manufactured, the device is always handled with conductive finger cots. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device.

LF357 Datasheet

In some cases, TI components may be promoted specifically to facilitate safety-related applications. Use of a heat sink is recommended if input bias current is to be kept to a minimum. Use an oscilloscope to probe the circuit as shown in Figure In no event shall TI’s liability arising out of such information exceed the total purchase price of the TI part s at issue in this document sold by TI to Customer on an annual basis.

Buyers are responsible for their products and applications using TI components. This information is the most current data available for the designated devices.

LF Datasheet(PDF) – National Semiconductor (TI)

Do not insert the input pin of the amplifier into the board at all, but bend it up in the air and use only air as an insulator. Bode Plot Figure Not recommended for new designs. Settling Time Test Circuit 8.