LMV331, LMV393, LMV339

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SLCS136T – AUGUST 1999 – REVISED JANUARY 2015

9.2.2.1 Input Voltage Range

incorrect comparisons.

Below is a possible list of input voltage situation and their outcomes:

1. When both IN- and IN+ are both within the common mode range:

(a) If IN- is higher than IN+ and the offset voltage, the output is low and the output transistor is sinking

current

(b) If IN- is lower than IN+ and the offset voltage, the output is high impedance and the output transistor is

not conducting

2. When IN- is higher than common mode and IN+ is within common mode, the output is low and the output

transistor is sinking current

3. When IN+ is higher than common mode and IN- is within common mode, the output is high impedance and

the output transistor is not conducting

4. When IN- and IN+ are both higher than common mode, the output is low and the output transistor is sinking

current

9.2.2.2 Minimum Overdrive Voltage

Overdrive Voltage is the differential voltage produced between the positive and negative inputs of the comparator

comparator, with the response time decreasing with increasing overdrive. Figure 10 show positive and negative

response times with respect to overdrive voltage.

9.2.2.3 Output and Drive Current

Output current is determined by the pull-up resistance (Rpullup) and Vlogic voltage, refer to Figure 9. The output

The output current can also effect the transient response. More will be explained in the next section.

9.2.2.4 Response Time

•

The positive response time (

•

The negative response time (

–

9.2.3 Application Curves

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