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LM2903FVT 데이터시트(PDF) 16 Page - Rohm

부품명 LM2903FVT
상세설명  Ground Sense Comparators
PDF  40 Pages
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제조업체  ROHM [Rohm]
홈페이지  http://www.rohm.com
Logo ROHM - Rohm

LM2903FVT 데이터시트(HTML) 16 Page - Rohm

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Datasheet
www.rohm.com
TSZ02201-0GOG0G200770-1-2
©2015 ROHM Co., Ltd. All rights reserved.
16/37
15.Jul.2016 Rev.002
TSZ22111
• 15 • 001
LM393xxx
LM339xxx
LM2903xxx
LM2901xxx
Application Information
NULL method condition for Test Circuit 1
VCC, VEE, EK, VICM, VRL Unit: V; RL Unit: Ohms
Parameter
VF
SW1
SW2
SW3
VCC
VEE
EK
VICM
VRL
RL
Calculation
Input Offset Voltage
VF1
ON
ON
ON
5 to 32
0
-1.4
0
5 to 32
5.1k
1
Input Offset Current
VF2
OFF
OFF
ON
5
0
-1.4
0
5
10k
2
Input Bias Current
VF3
OFF
ON
ON
5
0
-1.4
0
5
10k
3
VF4
ON
OFF
Large Signal Voltage Gain
VF5
ON
ON
ON
15
0
-1.4
0
15
15k
4
VF6
-11.4
- Calculation -
1. Input Offset Voltage (VIO)
2. Input Offset Current (IIO)
3. Input Bias Current (IB)
4. Large Signal Voltage Gain (AV)
VIO =
1 + RF/RS
[V]
|VF1|
IIO =
RI x (1 + RF/RS)
[A]
|VF2 - VF1|
IB =
2 x RI x (1 + RF/RS)
[A]
|VF4 - VF3|
Av = 20Log
|VF6 - VF5|
E
K × (1+RF/RS)
[dB]
Figure 39. Test Circuit 1 (One Channel Only)
VICM
RS=50Ω
RS=50Ω
RF=50kΩ
RI=10kΩ
RI=10kΩ
SW1
SW2
50kΩ
SW3
RL
EK
500k
Ω
500k
Ω
1000pF
(Note 18)
VF
0.0
1μF
(Note 18)
15V
-15V
VCC
VEE
VOUT
V
NULL
DUT
VRL
0.01uF
0.01uF
(Note 18)
Use 1uF capacitor for Input Bias Current and Input Offset Current



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