MM1217XS データシートの表示（PDF） - Mitsumi

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MM1217XS

Elame detection amplifier

Mitsumi 

MITSUMI

Flame Detection Amplifier MM1217

Electrical Characteristics Unless otherwise specified (Ta=25°C, VCC=3V, VIN=0V)

Item

Symbol Measurement Conditions

Input offset voltage

VIOC

VIN=-5mV

Comparator

Section

Input offset voltage

temperature drift

Input bias current

Output sink current

VIOC

IBC

ISINK

VIN=-5mV

VIN=-5mV

VIN=10mV, VO2=0.4V

Output leak current

ILC

VO2=VCC+1V

Output saturation voltage

ISAT

VIN=10mV, ISINK=5mA

Note 1 : Amplifier output ··· emitter-follower (pull-down resistance 22kΩ)

Note 2 : Comparator output ··· open collector

Application Circuits

Flame detection circuit using a thermocouple (single power source)

Min. Typ. Max. Units

±1.0 ±3.5 mV

±10 ±30 µV/°C

25 75 nA

5

mA

0.2 µA

200 400 mV

Note : Use a gain range of 20dB-50dB in the amplifier section (40dB recommended) .

Also, insert the capacitor between output 3 and GND instead of parallel to R2 in order to eliminate noise

from the input. Please note that use of the equipment under different conditions will cause vibration.

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