ROHM TLR377GYZ Non Inverting Amplifier
Specifications
- Product Name: ROHM Solution Simulator
- Type: Ultra Small Package & High Precision Rail-to-Rail Input/Output CMOS Operational Amplifier
- Function: Simulates frequency response with Op-Amp as a non-inverting amplifier
- Simulation Range: 0 Hz to 100 MHz
- Op-Amp Model: Behavioral model for input/output characteristics
This circuit simulates the frequency response with an Op-Amp as a non-inverting amplifier. You can observe the AC gain and phase of the ratio of output to input voltage when the input source voltage AC frequency is changed. You can customize the parameters of the components shown in blue, such as VSOURCE, or peripheral components, and simulate the non-inverting amplifier with the desired operating condition.
You can simulate the circuit in the published application note: Operational amplifier, Comparator (Tutorial). [JP] [EN] [CN] [KR]
General Cautions
- Caution 1: The values from the simulation results are not guaranteed. Please use these results as a guide for your design.
- Caution 2: These model characteristics are specifically at Ta=25°C. Thus, the simulation result with temperature variances may significantly differ from the result with the one done at actual application board (actual measurement).
- Caution 3: Please refer to the Application note of Op-Amps for details of the technical information.
- Caution 4: The characteristics may change depending on the actual board design and ROHM strongly recommend to double check those characteristics with actual board where the chips will be mounted on.
Simulation Schematic
How to simulate
The simulation settings, such as parameter sweep or convergence options, are configurable from the ‘Simulation Settings’ shown in Figure 2, and Table 1 shows the default setup of the simulation. In case of simulation convergence issue, you can change advanced options to solve. The temperature is set to 27 °C in the default statement in ‘Manual Options’. You can modify it.
Table 1. Simulation settings default setup
| Parameters | Default | Note |
| Simulation Type | Frequency-Domain | Do not change Simulation Type |
| Start Frequency | 0 Hz | Simulate the frequency response for the frequency range from 0 Hz to 100 MHz. |
| End Frequency | 100Meg Hz | |
| Advanced options | Balanced | – |
| Convergence Assist | – | |
| Manual Options | .temp 27 | – |
Simulation Conditions
Table 2. List of the simulation condition parameters
| Instance Name | Type | Parameters | Default Value | Variable Range | Units | |
| Min | Max | |||||
|
VSOURCE |
Voltage Source |
Voltage_level | 2.5 | 0 | 5.5 | V |
| AC_magnitude | 180m | free | V | |||
| AC_phase | 0.0 | fixed | ° | |||
|
VDD |
Voltage Source for Op-Amp | Voltage_level | 5 | 1.8(Note1) | 5.5(Note1) | V |
| AC_magnitude | 0.0 | fixed | V | |||
| AC_phase | 0.0 | fixed | ° | |||
|
VREF |
Voltage Source |
Voltage_level | 2.5 | VSS | VDD | V |
| AC_magnitude | 0.0 | fixed | V | |||
| AC_phase | 0.0 | fixed | ° | |||
|
SDNB |
Voltage Source For Shutdown Setting | Voltage_level | 5 | VSS | VDD | V |
| AC_magnitude | 0.0 | fixed | V | |||
| AC_phase | 0.0 | fixed | ° | |||
(Note 1) Set it to the guaranteed operating range of the Op-Amps.
Op-Amp model
Table 3 shows the model pin function implemented. Note that the Op-Amp model is the behavioral model for its input/output characteristics, and neither protection circuits nor functions unrelated to the purpose are implemented.
Table 3. Op-Amp model pins used for the simulation
| Pin Name | Description |
| +IN | Non-inverting input |
| -IN | Inverting input |
| VDD | Positive power supply |
| VSS | Negative power supply / Ground |
| OUT | Output |
| SDNB | Shutdown setting |
Peripheral Components
Bill of Material
Table 4 shows the list of components used in the simulation schematic. Each of the capacitors has the parameters of equivalent circuit shown below. The default values of equivalent components are set to zero except for the ESR of C. You can modify the values of each component.
Table 4. List of capacitors used in the simulation circuit
| Type | Instance Name | Default Value | Variable Range | Units | |
| Min | Max | ||||
|
Resistor |
R2_1 | 10k | 1k | 1M | Ω |
| R2_2 | 10k | 1k | 1M | Ω | |
| RL2 | 10k | 1k | 1M, NC | Ω | |
| Capacitor | C2_1 | 10 | 10 | 100 | pF |
| CL2 | 10 | free, NC | pF | ||
Capacitor Equivalent Circuits
The default value of ESR is 2m Ω. (Note 2) These parameters can take any positive value or zero in simulation but it does not guarantee the operationof the IC in any condition. Refer to the datasheet to determine adequate value of parameters.
Recommended Products
- Op-Amp TLR377GYZ : Ultra Small Package & High Precision Rail-to-Rail Input/Output CMOS Operational Amplifier. [JP] [EN] [CN] [KR] [TW] [DE] Technical Articles and Tools can be found in the Design Resources on the product web page.
Notice
- The information contained in this document is intended to introduce ROHM Group (hereafter referred to as ROHM) products. When using ROHM products, please verify the latest specifications or datasheets before use.
- ROHM products are designed and manufactured for use in general electronic equipment and applications (such as Audio Visual equipment, Office Automation equipment, telecommunication equipment, home appliances, amusement devices, etc.) or specified in the datasheets. Therefore, please contact the ROHM sales representative before using ROHM products in equipment or devices requiring extremely high reliability and whose failure or malfunction may cause danger or injury to human life or body or other serious damage (such as medical equipment, transportation, traffic, aircraft, spacecraft, nuclear power controllers, fuel control, automotive equipment including car accessories, etc. hereafter referred to as Specific Applications). Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any damages, expenses, or losses incurred by you or third parties arising from the use of ROHM Products for Specific Applications.
- Electronic components, including semiconductors, can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibility, adequate safety measures including but not limited to fail-safe design against physical injury, and damage to any property, which a failure or malfunction of products may cause.
- The information contained in this document, including application circuit examples and their constants, is intended to explain the standard operation and usage of ROHM products, and is not intended to guarantee, either explicitly or implicitly, the operation of the product in the actual equipment it will be used. As a result, you are solely responsible for it, and you must exercise your own independent verification and judgment in the use of such information contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses, or losses incurred by you or third parties arising from the use of such information.
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Frequently Asked Questions
Q: Can I change the simulation frequency range?
A: Yes, you can modify the start and end frequencies in the simulation settings.
Q: How do I change component values in the simulation?
A: You can customize the parameters of components shown in blue or peripheral components in the simulation settings.
Q: What is the purpose of the Op-Amp model in the simulation?
A: The Op-Amp model is used to simulate input/output characteristics of the operational amplifier.
Documents / Resources
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ROHM TLR377GYZ Non Inverting Amplifier [pdf] User Guide TLR377GYZ, TLR377GYZ Non Inverting Amplifier, TLR377GYZ, Non Inverting Amplifier, Inverting Amplifier, Amplifier |