BU7242YFVM-C Datasheet, PDF (14/26 Pages) Rohm – Input/Output Full Swing Low Supply Current CMOS Operational Amplifier

BU7242YFVM-C
Datasheet
Application Information – continued
1. Unused Circuits
When there are unused op-amps, it is recommended that they are connected as in Figure 33, setting the
non-inverting input terminal to a potential within the Input Common-mode Voltage Range (VICM).
VDD
Keep this potential
in VICM
VICM
VSS
Figure 33. Example of Application Circuit
for Unused Op-amp
2. Input Voltage
Applying VSS-0.3V to VDD+0.3V to the input terminal is possible without causing deterioration of the electrical
characteristics or destruction. 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.
3. Power Supply (Single/Dual)
The operational amplifier operates when the voltage supplied is between VDD and VSS. Therefore, the single supply
operational amplifiers can be used as dual supply operational amplifiers as well.
4. Latch up
Be careful of input voltage that exceed the VDD and VSS. When CMOS device have sometimes occur latch up and
protect the IC from abnormaly noise.
5. Decoupling Capacitor
Insert the decoupling capacitance between VDD and VSS, for stable operation of operational amplifier.
6. Start-up the Supply Voltage
This IC has ESD protection diode between input and VDD,VSS terminals. When apply the voltage to input terminal
before start up the supply voltage then the Current flow into or out from input terminal via VDD or VSS terminal. The
current is depending on applied voltage. This phenomena causes breakdown the IC or malfunction. Therefore, give a
special consideration to input terminal protection and start up order of supply voltage.
7. Output Capacitor
If a large capacitor is connected between the output pin and VSS pin, current from the charged capacitor will flow into
the output pin and may destroy the IC when the VDD pin is shorted to ground or pulled down to 0V. Use a capacitor
smaller than 0.1uF between output pin and VSS pin.
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111ï½¥15ï½¥001
14/22
TSZ02201-0GLG0G200810-1-2
12.Jul.2016 Rev.001