SBOU162A March 2017 – May 2017
-
DIYAMP-SOIC-EVM
- Trademarks
- 1 Introduction
- 2 Hardware Setup
- 3
Schematic and PCB Layout
- 3.1 Schematic PCB Drawing
- 3.2 Single-Supply, Multiple Feedback Filter
- 3.3 Single-Supply, Sallen-Key Filter
- 3.4 Single-Supply, Non-Inverting Amplifier
- 3.5 Single-Supply, Inverting Amplifier
- 3.6 Difference Amplifier
- 3.7 Dual-Supply, Multiple Feedback Filter
- 3.8 Dual-Supply, Sallen-Key Filter
- 3.9 Inverting Comparator
- 3.10 Non-Inverting Comparator
- 3.11 Riso With Dual Feedback
- 3.12 Dual-Supply, Non-Inverting Amplifier
- 3.13 Dual-Supply, Inverting Amplifier
- 4 Connections
- 5 Bill of Materials and Reference
- Revision History
3.12 Dual-Supply, Non-Inverting Amplifier
Figure 40 shows the schematic for the dual-supply, non-inverting amplifier circuit configuration.
Figure 40. Dual-Supply, Non-Inverting Amplifier Schematic The non-inverting op-amp configuration takes an input signal that is applied directly to the high impedance non-inverting input terminal and outputs a signal that is the same polarity as the input signal. The load resistance for this topology is the sum of R1 and R2. The values of the resistors in the feedback network will determine the amount of gain to amplify the input signal.
Equation 26 displays the transfer function of the dual-supply, non-inverting amplifier circuit configuration shown in Figure 40.
Capacitor C3 provides the option to filter the output. The cutoff frequency of the filter can be calculated using Equation 27.
The PCB layout of the top layer of the dual-supply, non-inverting amplifier circuit configuration is displayed in Figure 41
Figure 41. Dual-Supply, Non-Inverting Amplifier Top Layer The PCB layout of the bottom layer of the dual-supply, non-inverting amplifier circuit configuration is displayed in Figure 42.
Figure 42. Dual-Supply, Non-Inverting Amplifier Bottom Layer