Lm393 Pinout

July 09, 2024 Post a Comment

Lm393 pinout

What is the LM393 IC? The LM393 is a dual independent accuracy voltage integrated circuit operated with single or else split supply. These ICs comprises two independent voltage comparators to operate from an only power supply more than a wide variety of voltages.

Can we use LM393 instead of LM358?

The LM358 and LM393 might seem outwardly similar, but the LM358 is an operational amplifier with linear output, and the LM393 is a comparator with a digital output, and they cannot be interchanged.

What is LM393 comparator used for?

The LM393 series are dual independent precision voltage comparators capable of single or split supply operation. These devices are designed to permit a common mode range−to−ground level with single supply operation.

What is comparator input offset voltage?

The input offset voltage of a comparator is the input voltage at which its output changes from one logic level to the other. It may be caused by device mismatch or may be inherent to the design of a comparator.

How does a LM339 work?

The LM339 is a quad op amp comparator. A comparator works by a simple concept. Each op amp of a comparator has 2 inputs, a inverting input and a noninverting input. If the inverting input voltage is greater than the noninverting input, then the output is drawn to ground.

What is LM358 IC?

LM358 IC is a dual operational amplifier integrated circuit with two Op-Amp powered by a common power supply. It consists of two independent compensated operational amplifiers with low power and high gain frequency. LM358 is specially designed to operate from a single supply over a wide range of voltage.

Is LM393 open collector?

The LM393 is functionally a comparator by design. It is configured as an open-collector device since its typical use is as a switch.

How many comparators are in LM358?

LM358 has got dual comparator. Only one of them is used here in this tutorial. You may use both as an exercise.

How does a voltage comparator circuit work?

A comparator circuit compares two voltages and outputs either a 1 (the voltage at the plus side) or a 0 (the voltage at the negative side) to indicate which is larger. Comparators are often used, for example, to check whether an input has reached some predetermined value.

What is the difference between op amp and comparator?

Unlike operational amplifiers that usually operate with the input voltages at the same level, comparators typically see large differential voltage swings at their inputs. But some comparators without rail-to-rail inputs are specified to have a limited common mode input voltage range.

How do you find the output voltage of a comparator?

Practical voltage comparator circuit. The equation is Vref = (V+/ (R1 + R2)) x R2. Substituting the values given in the circuit diagram into this equation gives Vref = 6V. Whenever Vin goes above 6V, the output swings to ~+12V DC and vice versa.

What is a dual voltage comparator?

Description. This device consists of two independent low-power voltage comparators designed specifically to operate from a single supply over a wide range of voltages. Operation from split power supplies is also possible.

What causes offset voltage?

The cause of VOS is well known: it is mostly due to the inherent mismatch of the input transistors and components during fabrication of the silicon die, but stresses placed on the die during the packaging process have a minor contribution.

Why is input offset voltage important?

When used in amplifiers of sensors, etc., the input offset voltage of an op-amp results in an error of sensor detection sensitivity. To keep sensing errors below a specified tolerance level, it is necessary to select an op-amp with low input offset voltage.

What is the reason for input offset voltage to exist?

Because it is simply impossible to get both input paths perfectly balanced over all combinations of operating temperature, operating voltage, and all other parameters that can cause the output to be anything other than zero when there is no potential difference between the inputs.

What is comparator IC?

A comparator is an electronic circuit, which compares the two inputs that are applied to it and produces an output. The output value of the comparator indicates which of the inputs is greater or lesser. Please note that comparator falls under non-linear applications of ICs.

Why LM358 is used in IR sensor?

Here operational amplifier (op-amp) of LM 358 is used as a comparator. When the IR receiver does not receive the signal the potential at the inverting input goes higher than that at the non-inverting input of the comparator (LM 358). Thus the output of the comparator goes low and the LED does not glow.

Why LM358 IC is used?

LM358 can be used as transducer amplifier, DC gain block etc. It has large dc voltage gain of 100dB. This IC can be operated on wide range of power supply from 3V to 32V for single power supply or from ±1.5V to ±16V for dual power supply and it also support large output voltage swing.

Is LM358 single supply?

Single Supply Operation This means that operation with a +12V supply could be limited as low as 2 Vp-p output swing. The LM358 however, allows a 10.5 Vp-p output swing for the same 12V supply.

How does an open collector comparator work?

The outputs of voltage comparators are open collector outputs. Open collector type outputs can only sink current. This means that there is no true output from a collector but a rather a current or voltage must be supplied to the output terminal from a source elsewhere in the larger circuit.