Datasheet

Vsup+
+
VOUT
RF
VIN
RI
Vsup-
TL061 , TL061A , TL061B
TL062 , TL062A , TL062B , TL064 , TL064A , TL064B
SLOS078L –NOVEMBER 1978–REVISED MAY 2015 www.ti.com
9 Applications and Implementation
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
9.1 Application Information
The TL06x series of operational amplifiers can be used in countless applications. The few applications in this
section show principles used in all applications of these parts.
9.2 Typical Applications
9.2.1 Inverting Amplifier Application
A typical application for an operational amplifier in an inverting amplifier. This amplifier takes a positive voltage
on the input, and makes it a negative voltage of the same magnitude. In the same manner, it also makes
negative voltages positive.
Figure 19. Schematic for Inverting Amplifier Application
9.2.1.1 Design Requirements
The supply voltage must be chosen such that it is larger than the input voltage range and output range. For
instance, this application will scale a signal of ±0.5 V to ±1.8 V. Setting the supply at ±12 V is sufficient to
accommodate this application.
9.2.1.2 Detailed Design Procedure
Determine the gain required by the inverting amplifier:
(1)
(2)
Once the desired gain is determined, choose a value for RI or RF. Choosing a value in the kilohm range is
desirable because the amplifier circuit will use currents in the milliamp range. This ensures the part will not draw
too much current. This example will choose 10 kΩ for RI which means 36 kΩ will be used for RF. This was
determined by Equation 3.
(3)
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