LM2901D datasheet(4/12 Pages) STMICROELECTRONICS

4 / 12 page

Electrical Characteristics

LM2901

4/12

Electrical Characteristics

Table 3.

VCC

+ = 5V, V

- = GND, T

amb = 25°C (unless otherwise specified)

Symbol

Parameter

Min.

Typ.

Max.

Unit

Vio

Input Offset Voltage (1)

Tamb = +25°C

Tmin ≤ Tamb ≤ Tmax.

At output switch point, VO

≈ 1.4V, RS = 0 with VCC+ from 5V to 30V, and over the full input common-mode

range (0V to VCC+ –1.5V).

Iio

Input Offset Current

Tamb = +25°C

Tmin ≤ Tamb ≤ Tmax.

550

150

Iib

Input Bias Current (II

+ or I

-) (2)

Tamb = 2.5V

Tmin ≤ Tamb ≤ Tmax.

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

250

400

Avd

Large Signal Voltage Gain

(Vcc = 15V,RL=15kΩ, Vo=1 to 11V)

200

V/mV

Icc

Supply Current (all comparators))

VCC = +5V, no load

VCC = +30V, no load

1.1

1.3

2.5

Vicm

Input Common Mode Voltage Range (Vcc= 30V)

(3)

Tamb = +25°C

Tmin ≤ Tamb ≤ Tmax.

The input common-mode voltage of either input signal voltage should not be allowed to go negative by more

than 0.3V. The upper end of the common-mode voltage range is VCC

+ –1.5V, but either or both inputs can go

to +30V without damage.

VCC

+-1.5

VCC

+-2

Vid

Differential Input Voltage(4)

The response time specified is for a 100mV input step with 5mV overdrive.

VCC

VOL

Low Level Output Voltage

Vid = -1V, Isink = 4mA

Tamb = +25°C

Tmin ≤ Tamb ≤ Tmax

250

400

700

Ioh

High Level Output Current

(VCC =Vo =30V, Vid = 1V)

Tamb = +25°C

Tmin ≤ Tamb ≤ Tmax

0.1

µA

Isink

Output Sink Current (Vid = -1V,Vo = 1.5V)

616

tre

Small Signal Response Time(5)

(RL = 5.1kΩ connected to VCC

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 bellow the negative power supply, if used)

1.3

µs

trel

Large Signal Response Time(6)

TTL Input (Vref = +1.4 V, RL=5.1kΩ to VCC

Output Signal at 50% of final value

Output Signal at 95% of final value

Maximum values are guaranteed by design.

500

µs

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