LM is an excellent Operational amplifier capable of driving DTL, RTL, TTL, or MOS logic. The output can switch voltages to 50 volts at currents to description/ordering information. The LM, LM, and LM are single high -speed voltage comparators. These devices are designed to operate from a. The LM LM and LM are voltage comparators that have input currents nearly a thousand times lower than devices like the LM or LM They are.

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Common Mode Limits vs Temperature Figure 6.

LM311 datasheet

Input Bias Current vs Differential input voltage Figure 5. The response time specified is for a mV datasneet step with 5mV over drive. The LM can work on a Single supply voltage or in a dual supply mode.

When not in use the pins 5 and 6 should be shorted as shown above. If the voltage at the Non-Inverting Terminal pin 2 is higher than the Inverting Terminal pin 2the output pin 7 will also be high else the output will be low.

Offset voltage null capability. The pins 5 and 6 on the Op-amp are used to set the balance voltage if you want to manually adjust the DC-Offset voltage. Supply Current vs Temperature Figure 9. The transistor can also make the Load to be isolated from the system ground, so if you are looking for a Voltage comparator datasheeet drive loads of these specifications then this IC might be the right choice for you.


The device is also designed to operate from dual or single supply voltage. Supply Current vs Supply Voltage Figure The simplified schematics of the IC is shown below: Current Saturation Voltage Figure Lab 9 in this note.

LM Datasheet(PDF) – National Semiconductor (TI)

The simplified schematics of the IC is shown below:. Offset Voltage vs Input Resistance Figure 4.

Submitted by admin on 6 March Life support devices or systems are devices or systems which, a are intended for surgical implant into the body, or b support or sustain life, and c whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user.

Input Offset Current vs Temperature Figure 3. TL — Programmable Reference Voltage. You can note that the Output voltage stays high when pin 2 has higher voltage than pin 7 and vice versa. Documents Flashcards Grammar checker. Saturation voltage vs Current Figure 8. Low input bias current: Any Op-Amp can be made to work as a voltage comparator, but the LM proves itself to be advantages by housing an Output Transistor inside its package. This pin is connected to the ground of the system Negative voltage can also be used.


A sample circuit is shown below in which the Inverting Terminal is set to 2.

Input Bias Current vs Temperature Figure 2. An Emitter Output Circuit is shown below. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. Leakage Current vs Temperature Figure You can refer the other possible lj311 from the LM datasheet given at bottom.

Normally these pins are not used since the Input Offset itself is much better controlled. Review of LR circuits.