LM193DT datasheet(4/15 Pages) STMICROELECTRONICS

No. de pieza	LM193DT

Descripción Electrónicos	Low power dual voltage comparators

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Fabricante Electrónico	STMICROELECTRONICS [STMicroelectronics]

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Electrical characteristics

LM193, LM293, LM393

4/15

3

Electrical characteristics

Table 3.

VCC

+ = +5V, V

CC

-= 0V, T

amb = +25°C (unless otherwise specified)

Symbol

Parameter

LM193A - LM293A

LM393A

LM193- LM293

LM393

Unit

Min.

Typ.

Max.

Min

Typ.

Max.

Vio

Input offset voltage (1)

Tmin ≤ Tamb ≤ Tmax

12

4

15

9

mV

Iio

Input offset current

Tmin ≤ Tamb ≤ Tmax

325

100

550

150

nA

Iib

Input bias current (I+ or I-) (2)

Tmin ≤ Tamb ≤ Tmax

25

100

300

25

250

400

nA

Avd

Large signal voltage gain

VCC = 15V, RL = 15kΩ, Vo = 1V to 11V

50

200

50

200

V/mV

ICC

Supply current (all comparators)

VCC = +5V, no load

VCC = +30V, no load

0.4

1

2.5

0.4

1

2.5

mA

Vid

Differential input voltage (3)

VCC

+

VCC

+

VOL

Low level output voltage

Vid = -1V, Isink = 4mA

Tmin ≤ Tamb ≤ Tmax

250

400

700

250

400

700

mV

IOH

High level output current

VCC = Vo = 30V, Vid = 1V

Tmin ≤ Tamb ≤ Tmax

0.1

1

0.1

1

nA

μA

Isink

Output sink current Vid= 1V, Vo = 1.5V

6

16

6

16

mA

tre

Response time (4)

RL= 5.1kΩ connected to VCC

+

1.3

μs

trel

Large signal response time

RL= 5.1kΩ connected to VCC

+, e

l = TTL,

V(ref) = +1.4v

300

ns

1.

At output switch point, Vo ≈ 1.4 V, Rs = 0 with VCC

+ from 5 V to 30 V, and over the full common-mode range (0 V to

VCC

+ -1.5 V).

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).

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