LM393MX_11 Datasheet, PDF (12/17 Pages) Rohm – NOW SERIES Comparators

LM393MX,LM2903MX,LM339MX,LM2901MX
●Circuit Diagram
Technical Note
V⁺
+_INPUT
-_INPUT
OUTPUT
GND
Fig.87 Circuit Diagram (each Comparator)
●Measurement circuit 1 NULL Method measurement condition
Parameter
LM393/LM339 family
VF
S1
S2
S3
V ⁺ GND EK VICR
Input Offset Voltage
VF1
ON
ON
ON 5 to 30 0
-1.4
0
Input Offset Current
VF2 OFF OFF ON
5
0
-1.4
0
Input Bias Current
VF3 OFF ON
5
ON
VF4 ON OFF
5
0
-1.4
0
0
-1.4
0
Voltage Gain
VF5
15
ON
ON
ON
VF6
15
0
-1.4
0
0
-11.4
0
V⁺,GND,EK,VICR unit：[V]
LM2903/LM2901 family
V ⁺ GND EK VICR
5 to 30 0
-1.4
0
5
0
-1.4
0
5
0
-1.4
0
5
0
-1.4
0
15
0
-1.4
0
15
0
-11.4
0
Calculation
1
2
3
4
－Calculation－
1.Input offset voltage (VIO)
VF1
Vio 
[V]
1+ Rf /Rs
0.1[μF]
2.Input offset current (IIO)
Iio  ^{VF2 - VF1} [A]
Ri (1+ Rf / Rs)
3.Input bias current (IIb)
Ib 
VF4 - VF3
[A]
2× Ri(1+ Rf / Rs)
4.Voltage gain (AVD)
S1
RS＝ 50[Ω]
V ICR
Ri＝10[kΩ]
Ri＝10[kΩ]
RS＝ 50[Ω]
S2
50[kΩ]
Rf
50[kΩ]
RK
V⁺
EK
500[kΩ]
DUT
S3
GND
RL
V RL
RK 500[kΩ]
1000[pF]
0.1[μF]
+15[V ]
NULL
-15[V ]
AV  20× Log ^{10× (1+ Rf /Rs) [dB]}
VF6 - VF5
Fig.88 Measurement Circuit1 (each Comparator)
V VF
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12/16
2011.06 - Rev.C