C1

R4

VO

R2

R3

R1

VA

+

-

VC

V

+

0

V

+

LMV761, LMV762, LMV762Q-Q1

www.ti.com

SNOS998I – FEBRUARY 2002 – REVISED OCTOBER 2015

8 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

8.1 Application Information

The LMV76x are single-supply comparators with 120 ns of propagation delay and 300 µA of supply current.

8.2 Typical Application

A typical application for a LMV76x comparator is a programmable square-wave oscillator.

Figure 23. Square-Wave Oscillator

8.2.1 Design Requirements

The circuit in Figure 23 generates a square wave whose period is set by the RC time constant of the capacitor

C1 and resistor R4. V

+ = 5 V unless otherwise specified.

8.2.2 Detailed Design Procedure

The maximum frequency is limited by the large signal propagation delay of the comparator and by the capacitive

loading at the output, which limits the output slew rate.

Figure 24. Square-Wave Oscillator Timing Thresholds

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Product Folder Links: LMV761 LMV762 LMV762Q-Q1