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BA2901F Datasheet(PDF) 16 Page - Rohm

Part # BA2901F
Description  Ground Sense Comparators
PDF  25 Pages
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Manufacturer  ROHM [Rohm]
Direct Link  http://www.rohm.com
Logo ROHM - Rohm

BA2901F Datasheet(HTML) 16 Page - Rohm

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Technical Note
16/24
BA10393F,BA10339F,BA10339FV,BA2903SF,BA2903SFV,BA2903SFVM,BA2903F,BA2903FV,
BA2903FVM,BA2901SF,BA2901SFV,BA2901SKN,BA2901F,BA2901FV,BA2901KN,BA8391G
www.rohm.com
2011.08 - Rev.B
© 2011 ROHM Co., Ltd. All rights reserved.
●
Circuit Diagram
Fig.110 Schematic Diagram (one channel only)
●
Test Circuit1 Null Method
VCC, VEE, EK, Vicm Unit : [V], VRL=VCC
Parameter
VF
S1
S2
S3
BA10393 family
BA10339 family
BA8391 family
BA2903/BA2901 family Calculation
VCC VEE
EK Vicm VCC VEE
EK Vicm
Input Offset Voltage
VF1
ON
ON
ON
5
0
-1.4
0
5~36
0
-1.4
0
1
Input Offset Current
VF2 OFF OFF
ON
5
0
-1.4
0
5
0
-1.4
0
2
Input Bias Current
VF3 OFF
ON
ON
5
0
-1.4
0
5
0
-1.4
0
3
VF4
ON
OFF
5
0
-1.4
0
5
0
-1.4
0
Large Signal Voltage Gain
VF5
ON
ON
ON
15
0
-1.4
0
15
0
-1.4
0
4
VF6
15
0
-11.4
0
15
0
-11.4
0
- Calculation -
1. Input Offset Voltage (Vio)
2. Input Offset Current (Iio)
3. Input Bias Current (Ib)
4. Large Signal Voltage Gain (AV)
[V]
/Rs
Rf
1+
VF1
Vio 
/ Rs)
Rf
(1+
Ri
VF1
VF2 -
Iio 
[A]
Rf / Rs)
(1+
Ri
2×
VF3
VF4 -
Ib
[A]
Fig.111 Test circuit1 (one channel only)
ΔEK×(1+Rf /Rs)
Av = 20×Log
|VF5-VF6|
[dB]
+IN
-IN
VOUT
VCC
VEE
S3
+15[V]
VF
-15[V]
RL
RK
Rf
Rs
50k
EK
NULL
DUT
V
S1
S2
Vicm
VRL
VCC
VEE
50 [Ω]
Rs
0.1 [µF]
RK
C1
50 [Ω]
Ri 10 [kΩ]
Ri 10 [kΩ]
0.1 [µF]
500 [kΩ]
500 [kΩ]
0.01 [µF]
50 [kΩ]



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