Electrical characteristics

LM193, LM293, LM393

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Electrical characteristics

Table 3.

CC

Symbol

Parameter

LM193A - LM293A

LM393A

LM193- LM293

LM393

Unit

Min.

Typ.

Max.

Min

Typ.

Max.

12

4

15

9

mV

Input offset current

325

100

550

150

nA

25

100

300

25

250

400

nA

Large signal voltage gain

50

200

50

200

V/mV

Supply current (all comparators)

0.4

1

1

2.5

0.4

1

1

2.5

mA

+

+

Low level output voltage

250

400

700

250

400

700

mV

High level output current

0.1

1

0.1

1

nA

μA

6

16

6

16

mA

+

1.3

1.3

μs

Large signal response time

300

300

ns

1.

2.

The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant,

independent of the state of the output, so no loading charge exists on the reference of input lines.

3.

The response time specified is for a 100 mV input step with 5 mV overdrive. For larger overdrive signals 300 ns can be

obtained.

4.

Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the

common-mode range, the comparator will provide a proper output state. The low input voltage state must not be less than

-0.3 V (or 0.3 V below the negative power supply, if used).