ROHM BD7281YG-C Non Inverting Amplifier User Guide

User Guide for ROHM models including: BD7281YG-C Non Inverting Amplifier, BD7281YG-C, BD7281YG-C Amplifier, Non Inverting Amplifier, Inverting Amplifier, Amplifier

BD7281YG-C – Non-inverting Amplifier – Frequency Response simulation

Rev.001

ROHM CO., LTD.

Simulation Guide for BD7281YG-C / Non-inverting Amplifier / Frequency Response (ROHM Solution Simulator)

BD7281YG-C - 數據表、主要規格 | ROHM.com.tw

BD7281YG-C 数据表、主要规格 ROHM.com.cn

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scheminfo bd7281yg-c non-inverting amplifier opamp freq ug-e

User's Guide
ROHM Solution Simulator
Nano CapTM, Low Noise & Input/Output Rail-to-Rail High Speed CMOS Operational Amplifier for Automotive
BD7281YG-C Non-inverting Amplifier Frequency Response simulation
This circuit simulates the frequency response with 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.
1 Simulation Schematic

Figure 1. Simulation Schematic
2 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.

Simulation Settings

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

Simulate

`Manual Options'. You can modify it.

Figure 2. Simulation Settings and execution

Table 1. Simulation settings default setup

Parameters

Default

Note

Simulation Type

Frequency-Domain

Do not change Simulation Type

Start Frequency End Frequency

10 Hz 100Meg Hz

Simulate the frequency response for the frequency range from 10 Hz to 100 MHz.

More Accuracy

Advanced options

Time Resolution Enhancement Convergence Assist

Manual Options

.temp 27

65UG047E Rev.001 Oct.2022

BD7281YG-C Voltage Follower Frequency Response simulation

User's Guide

3 Simulation Conditions

Table 2. List of the simulation condition parameters

Instance Name

Type

Parameters

Voltage_level

VSOURCE Voltage Source AC_magnitude

AC_phase

VDD

Voltage Source for Op-Amp

Voltage_level AC_magnitude AC_phase

Voltage_level

VREF

Voltage Source AC_magnitude

AC_phase

(Note 1) Set it to the guaranteed operating range of the Op-Amps.

Default Value
2.5 180m
0.0 5 0.0 0.0 2.5 0.0 0.0

Variable Range

Min

Max

5.5

free

fixed

2.5(Note1) 5.5(Note1)

fixed

VSS

VDD

fixed

Units
V V ° V V ° V V °

4 Op-Amp model

Table 3 shows the model pin function implemented. Note that the Op-Amp model is the behavior model for its input/output characteristics, and no protection circuits or the functions not related to the purpose are not 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

65UG047E Rev.001 Oct.2022

BD7281YG-C Voltage Follower Frequency Response simulation

User's Guide

5 Peripheral Components

5.1 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

R2_1

10k

Resistor

R2_2

10k

RL2

10k

Capacitor

C2_1 CL2

10 25

Variable Range

Min

Max

1M, NC

0.1

100

free, NC

Units
pF pF

5.2 Capacitor Equivalent Circuits

(a) Property editor

(b) Equivalent circuit

Figure 3. Capacitor property editor and equivalent circuit

The default value of ESR is 0.01 . (Note 2) These parameters can take any positive value or zero in simulation but it does not guarantee the operation
of the IC in any condition. Refer to the datasheet to determine adequate value of parameters.

6 Recommended Products

6.1 Op-Amp BD7281YG-C : Nano CapTM, Low Noise & Input/Output Rail-to-Rail High Speed CMOS Operational Amplifier for Automotive. [JP] [EN] [CN] [KR] [TW] [DE] TLR4377YFV-C : Automotive High Precision & Input/Output Rail-to-Rail CMOS Operational Amplifier (Quad Op-Amp). [JP] [EN] [CN] [KR] [TW] [DE] TLR2377YFVM-C : Automotive High Precision & Input/Output Rail-to-Rail CMOS Operational Amplifier (Dual Op-Amp). [JP] [EN] [CN] [KR] [TW] [DE] TLR377YG-C : Automotive High Precision & Input/Output Rail-to-Rail CMOS Operational Amplifier. [JP] [EN] [CN] [KR] [TW] [DE] LMR1802G-LB : Low Noise, Low Input Offset Voltage 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.

65UG047E Rev.001 Oct.2022

Notice

Notes
1) The information contained herein is subject to change without notice.
2) Before you use our Products, please contact our sales representative and verify the latest specifications :
3) Although ROHM is continuously working to improve product reliability and quality, semiconductors can break down and malfunction due to various factors. Therefore, in order to prevent personal injury or fire arising from failure, please take safety measures such as complying with the derating characteristics, implementing redundant and fire prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no responsibility for any damages arising out of the use of our Poducts beyond the rating specified by ROHM.
4) Examples of application circuits, circuit constants and any other information contained herein are provided only to illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production.
5) The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM or any other parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of such technical information.
6) The Products specified in this document are not designed to be radiation tolerant.
7) For use of our Products in applications requiring a high degree of reliability (as exemplified below), please contact and consult with a ROHM representative : transportation equipment (i.e. cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety equipment, medical systems, servers, solar cells, and power transmission systems.
8) Do not use our Products in applications requiring extremely high reliability, such as aerospace equipment, nuclear power control systems, and submarine repeaters.
9) ROHM shall have no responsibility for any damages or injury arising from non-compliance with the recommended usage conditions and specifications contained herein.
10) ROHM has used reasonable care to ensure the accuracy of the information contained in this document. However, ROHM does not warrants that such information is error-free, and ROHM shall have no responsibility for any damages arising from any inaccuracy or misprint of such information.
11) Please use the Products in accordance with any applicable environmental laws and regulations, such as the RoHS Directive. For more details, including RoHS compatibility, please contact a ROHM sales office. ROHM shall have no responsibility for any damages or losses resulting non-compliance with any applicable laws or regulations.
12) When providing our Products and technologies contained in this document to other countries, you must abide by the procedures and provisions stipulated in all applicable export laws and regulations, including without limitation the US Export Administration Regulations and the Foreign Exchange and Foreign Trade Act.
13) This document, in part or in whole, may not be reprinted or reproduced without prior consent of ROHM.
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References

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