ba3472f ROHM Co. Ltd., ba3472f Datasheet - Page 7

• Manufacturer Part Number: ba3472f
• Description: Operational Amplifiers High Speed
• Manufacturer: ROHM Co. Ltd.

●Notes for use
© 2009 ROHM Co., Ltd. All rights reserved.
BA3472F,BA3472FV,BA3472FVM
www.rohm.com
1)Unused circuits
2) Input terminal voltage
3) Power supply (single / dual)
4) Power dissipation Pd
5) Short-circuit between pins and erroneous mounting
6) Operation in a strong electromagnetic field
7) Radiation
8) IC handing
9) Board inspection
10)Output capacitor
When there are unused circuits it is recommended that they are
connected as in Fig.29, setting the non-inverting input terminal
to a potential within input commo-mode voltage range (Vicm).
Applying GND + 36V to the input terminal is possible without causing
deterioration of the electrical characteristics or destruction, irrespective of
the supply voltage. However, this does not ensure normal circuit operation.
Please note that the circuit operates normally only when the input voltage is
within the common mode input voltage range of the electric characteristics.
The op-amp operates when the specified voltage supplied is between
VCC and VEE. Therefore, the single supply op-amp can be used as
dual supply op-amp as well.
Using the unit in excess of the rated power dissipation may cause deterioration in electrical characteristics due to
a rise in chip temperature, including reduced current capability. Therefore, please take into consideration the
power dissipation (Pd) under actual operating conditions and apply a sufficient margin in thermal design.
Refer to the thermal derating curves for more information.
Incorrect mounting may damage the IC. In addition, the presence of foreign particles between the outputs,
the output and the power supply, or the output and GND may result in IC destruction.
Operation in a strong electromagnetic field may cause malfunctions.
This IC is not designed to withstand radiation.
Applying mechanical stress to the IC by deflecting or bending the board may cause fluctuations in the electrical
characteristics due to piezoelectric (piezo) effects.
Connecting a capacitor to a pin with low impedance may stress the IC. Therefore, discharging the capacitor after
every process is recommended. In addition, when attaching and detaching the jig during the inspection phase,
ensure that the power is turned OFF before inspection and removal . Furthermore, please take measures against
ESD in the assembly process as well as during transportation and storage.
Discharge of the external output capacitor to VCC is possible via internal parasitic elements when VCC is shorted to VEE,
causing damage to the internal circuitry due to thermal stress. Therefore, when using this IC in circuits where oscillation
due to output capacitive load does not occur, such as in voltage comparators, use an output capacitor with a capacitance
less than 0.1µF.
7/9
Please keep this
potencial in Vicm
同相入力電圧
範囲内の電位
Fig.29Unused circuit example
図1 未使用回路の処理例
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Technical Note
2009.05 - Rev.A
VCC
VEE