TS391 datasheet(4/8 Pages) STMICROELECTRONICS

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Electrical characteristics

TS391

4/8

Electrical characteristics

Table 3.

VCC

+ = +5V, V

- = 0V, T

amb = 25°C (unless otherwise specified)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Vio

Input offset voltage (1)

Tmin ≤ Tamb ≤ Tmax

Iio

Input offset current

Tmin ≤ Tamb ≤ Tmax

550

150

Iib

Input bias current (2)

Tmin ≤ Tamb ≤ Tmax

250

400

Avd

Large signal voltage gain

VCC

+ = 15V, R

L = 15kΩ,

Vo = 1 to 11V

200

V/mV

ICC

Supply current

VCC

+ = 5V, no load

VCC

+ = 30V, no load

0.2

0.5

1.25

Vid

Differential input voltage (3)

VCC

Isink

Output sink current

Vid = -1V, VO = 1.5V

VOL

Low level output voltage

Vid = 1V, VCC

+ = V

O = 30V

Tmin ≤ Tamb ≤ Tmax

250

400

700

IOH

High level output current

Vid = 1V, VCC

+ = V

O = 30V

Tmin ≤ Tamb ≤ Tmax

0.1

µA

tre

Small signal response time

RL = 5.1kΩ to VCC

+ (4)

1.3

µs

trel

Large signal response time

Vi = TTL, Vref = +1.4V,

RL = 5.1kΩ to VCC

300

At output switch point, VO ≈ 1.4V, RS = 0Ω with VCC

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

VCC

+ -1.5V).

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 there is no loading charge on the reference or input lines.

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

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

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

obtained.

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