TSM109 datasheet(4/7 Pages) STMICROELECTRONICS

Part #	TSM109

Description	Dual Comparator and Voltage Reference

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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4 / 7 page

TSM109/A

Electrical Characteristics

4/7

COMPARATOR (comparator with inverting input connected to the internal Vref))

VCC+ = +5V, VCC

-= GND, T

amb = +25°C (unless otherwise specified)

Symbo

l

Parameter

TSM109

Unit

Min. Typ.

Max.

Vio

Input Offset Voltage - note 1

Tamb = +25°C

Tmin ≤ Tamb ≤ Tmax

1)

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

CC

+ -1.5V).

15

9

mV

Iib

Input Bias Current for positive input note 2

Tamb = +25°C

Tmin ≤ Tamb ≤ Tmax

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.

25

250

400

nA

Avd

Large Signal Voltage Gain

VCC = 15V, RL = 15kΩ, Vo = 1V to 11V

50

200

V/mV

Vid

Differential Input Voltage -note

VCC

+

-2.5V

V

VOL

Low Level Output Voltage

Vid = -1V, Isink = 4mA

Tamb = +25°C

Tmin ≤ Tamb ≤ Tmax

250

400

700

mV

IOH

High Level Output Current (Vid = 1V)

VCC = Vo = 30V

Tamb = +25°C

Tmin ≤ Tamb ≤ Tmax

30

150

1

nA

µA

Isink

Output Sink Currrent

Vid= 1V, Vo = 1.5V

10

20

mA

tre

Response Time - note 3

RL= 5.1kΩ connected to VCC

+

3)

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

ns

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