TSM109 datasheet(3/7 Pages) STMICROELECTRONICS

3 / 7 page

TSM109/A

3/7

ELECTRICAL CHARACTERISTICS

COMPARATOR (independent comparator)

VCC+ = +5V, VCC

-= GND, T

amb = +25°C (unless otherwise specified)

Symbol

Parameter

TSM109

Unit

Min.

Typ.

Max.

Vio

Input Offset Voltage - note 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 common-mode range (0V to V

+ -1.5V).

Iio

Input Offset Current

Tamb = +25°C

Tmin ≤ Tamb ≤ Tmax

325

100

Iib

Input Bias Current (I+ or I-) - note 2)

Tamb = +25°C

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 = 1V to 11V

200

V/mV

Vicm

Input Common Mode Voltage Range - note 3)

VCC = 30V

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 -note 4)

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

range, the comparator will provide an appropriate output state. The low input voltage state must not be less than -0.3V (or 0.3V below the negative

power supply, if used).

VCC

VOL

Low Level Output Voltage

Vid = -1V, Isink = 4mA

Tamb = +25°C

Tmin ≤ Tamb ≤ Tmax

250

400

700

IOH

High Level Output Current (Vid = 1V)

VCC = Vo = 30V

Tamb = +25°C

Tmin ≤ Tamb ≤ Tmax

150

µA

Isink

Output Sink Currrent

Vid= 1V, Vo = 1.5V

tre

Response Time - note 5)

RL= 5.1kΩ connected to VCC

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

1.3

µs

trel

Large Signal Response Time

RL= 5.1kΩ connected to VCC

+, e

l = TTL,

V(ref) = +1.4v

300

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