BA2903YF-C Datasheet, PDF (9/17 Pages) Rohm – Automotive Comparators:Ground Sense

BA2903YF-C,BA2903YFVM-C,BA2901YF-C,BA2901YFV-C
●Circuit Diagram
VCC
VOUT
+IN
-IN
Technical Note
VEE
BA2903Y / BA2901Y Schematic Diagram
Fig.47 Schematic Diagram (one channel only )
●Test Circuit 1 Null Method
VCC,VEE,EK,Vicm Unit：[V]
Parameter
VF
S1
S2
S3
BA2903Y family
BA2901Y family
Calculation
Vcc VEE EK Vicm
Input Offset Voltage
VF1
ON
ON
ON 5～36
0
-1.4
0
1
Input Offset Current
VF2 OFF OFF ON
5
0
-1.4
0
2
Input Bias Current
VF3
VF4
OFF
ON
ON
OFF
ON
5
5
0
-1.4
0
0
-1.4
0
3
Large Signal Voltage Gain
VF5
VF6
ON
ON
ON
15
15
0
-1.4
0
0
-11.4
0
4
- Calculation -
1. Input Offset Voltage (Vio)
| VF1 |
Vio =
[V]
1 + Rf / Rs
2. Input Offset Current (Iio)
| VF2－VF1 |
Iio =
[A]
Ri ×(1 + Rf / Rs)
3. Input Bias Current (Ib)
| VF4－VF3 |
Ib =
[A]
2×Ri× (1 + Rf / Rs)
4. Large Signal Voltage Gain (AV)
Av = 20×Log ^{ΔEK×(1+Rf /Rs)} _[dB]
| VF 5-VF 6|
Fig.48 Test circuit1 (one channel only)
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
9/16
2011.08 - Rev.B