LMC6772

SNOS749F – SEPTEMBER 1995 – REVISED MARCH 2013

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TYPICAL APPLICATIONS

UNIVERSAL LOGIC LEVEL SHIFTER

The output of the LMC6772 is the uncommitted drain of the output NMOS transistor. Many drains can be tied

together to provide an output OR'ing function. An output pullup resistor can be connected to any available power

supply voltage within the permitted power supply range.

Figure 32. Universal Logic Level Shifter

The two 1 k

Ω resistors bias the input to half of the power supply voltage. The pull-up resistor should go to the

output logic supply. Due to its wide operating range, the LMC6772 is ideal for the logic level shifting applications.

ONE-SHOT MULTIVIBRATOR

Figure 33. One-Shot Multivibrator

A monostable multivibrator has one stable state in which it can remain indefinitely. It can be triggered externally

to another quasi-stable state. A monostable multivibrator can thus be used to generate a pulse of desired width.

The desired pulse width is set by adjusting the values of C2 and R4. The resistor divider of R1 and R2 can be

used to determine the magnitude of the input trigger pulse. The LMC6772 will change state when V1 < V2. Diode

D2 provides a rapid discharge path for capacitor C2 to reset at the end of the pulse. The diode also prevents the

non-inverting input from being driven below ground.

BI-STABLE MULTIVIBRATOR

Figure 34. Bi-Stable Multivibrator

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