LMC7211AIM5X Datasheet, PDF (10/22 Pages) Texas Instruments – LMC7211 Tiny CMOS Comparator with Rail-to-Rail Input and Push-Pull Output

LMC7211-N
SNOS746F – MAY 2004 – REVISED JANUARY 2013
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At supply voltages of 2.7V, the common-mode voltage range extends 200 mV (guaranteed) below the negative
supply. This feature, in addition to the comparator being able to sense signals near the positive rail, is extremely
useful in low voltage applications.
Figure 3. Even at Low-Supply Voltage of 2.7V, an Input Signal which Exceeds the Supply Voltages
Produces No Phase Inversion at the Output
At V⁺ = 2.7V propagation delays are t_PLH = 4 μs and t_PHL = 4 μs with overdrives of 100 mV.
Please refer to the performance curves for more extensive characterization.
Shoot-Through Current
The shoot-through current is defined as the current surge, above the quiescent supply current, between the
positive and negative supplies of a device. The current surge occurs when the output of the device switches
states. The shoot-through current results in glitches in the supply voltages. Usually, glitches in the supply lines
are prevented by bypass capacitors. When the glitches are minimal, the value of the bypass capacitors can be
reduced.
Figure 4. Circuit for Measurement of the
Shoot-Through Current
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