Datasheet

Technical Note
16/24
BA10393F,BA10339F,BA10339FV,BA2903SF,BA2903SFV,BA2903SFVM,BA2903F,BA2903FV,
BA2903FVM,BA2901SF,BA2901SFV,BA2901SKN,BA2901F,BA2901FV,BA2901KN,BA8391G
www.rohm.com
2010.12 - Rev.
A
© 2010 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]
/RsRf1+
VF1
Vio

/ Rs)Rf(1+Ri
VF1VF2 -
Iio

[A]
Rf / Rs)(1+Ri2×
VF3
VF4 -
Ib 
[A]
Fig.111 Test circuit1 (one channel only)
Δ
EK×(1+Rf /Rs)
A
v = 20×Log
|VF5-VF6|
[dB]
+IN
-IN
VOU
T
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]