Op-Amp Inverting Amplifier Precision Workstation
Provides regulated excitation, calibrated terminal access, and low-parasitic interconnects for negative feedback, virtual ground concept & gain-bandwidth product.
Electrical & Electronics Engineering / Op-Amp Inverting Amplifier
FREE TO EXPLORELABORATORY 14 · ELECTRICAL & ELECTRONICS ENGINEERING
Operational Amplifier Inverting and Non-Inverting Closed-Loop Gain & Virtual Ground Analysis
Verify closed-loop voltage gain, input/output phase inversion, and virtual ground behavior in operational amplifier inverting and non-inverting configurations (uA741 / TL081). Explore interactive circuit analysis, electronics simulation, and electrical engineering telemetry.
CIRCUIT ANALYSIS · ANALOG · DIGITAL · MACHINES · POWER SYSTEMS · CONTROL & INSTRUMENTATION
Your virtual electrical & electronics engineering laboratory.
INVERTED OUTPUT VOLTAGE V_OUT—
INSTRUMENTATION TELEMETRY
Ready to sample with Input Voltage V_in = 0.5 V.
Adjust Input Voltage V_in, then execute electrical instrumentation acquisition.
Electrical telemetry is sampled with calibrated high-precision instruments using 64-bit IEEE 754 precision buffers. Residuals reflect ordinary least-squares regression across successive observations. Continuous data structures support high-fidelity circuit and power system modeling.
Electrical engineering assumptions and boundary limits
Assumes ideal linear operating conditions without thermal breakdown or non-linear core saturation Calibrated using the Precision Op-Amp Linear Breadboard Module under controlled temperature and 64-bit IEEE 754 precision instrumentation buffers. Ordinary least-squares regression yields R² > 0.99999.
Laboratory apparatus & testing equipment.
True-RMS Digital Multimeter (6.5-digit Keysight / Fluke)
Measures terminal voltages, branch currents, and precision DC/AC parameters with ±0.0035% baseline accuracy.
Dual-Channel Digital Storage Oscilloscope (100 MHz, 1 GSa/s)
Captures time-domain waveforms, phase shifts, transient dynamics, and harmonic spectra for op-amp inverting amplifier.
Regulated Linear DC / AC Variable Power Source
Supplies low-noise, ripple-free voltage and current excitation with adjustable current limiting.
Calibrated Decade Resistance & Component Substitution Box
Provides precision 0.1% tolerance standard passive values to establish calibrated input voltage v_in conditions.
Four-Terminal Kelvin Lead Wire & BNC Coaxial Cable Set
Minimizes lead resistance, inductive pickup, and ambient EMI interference across all test ports.
FOLLOW THE METHOD
A reason behind every step.
Verify closed-loop voltage gain, input/output phase inversion, and virtual ground behavior in operational amplifier inverting and non-inverting configurations (uA741 / TL081). Standardized parameter settings: -1.2, -0.6, 0.0, 0.6, 1.0, 1.2 V.
- Visual Inspection & Pre-Flight Zero Tare: Inspect all circuit connections, breadboard jumpers, and terminal blocks. Verify that instrument ground planes are tied to earth and execute zero tare on all digital meters.
- Excitation Source & Baseline Calibration: Energize the regulated supply, set baseline operating thresholds, and calibrate the input voltage v_in using the precision standard reference meter.
- Systematic Parameter Variation & Settling: Increment the input voltage v_in systematically across the designated experimental range (-1.2 to 1.2 V), permitting thermal settling at each setpoint.
- Multi-Meter & Oscilloscope Waveform Acquisition: Record the primary output metric (Inverted Output Voltage V_out) alongside auxiliary telemetry. Verify waveform symmetry, DC offset, and harmonic integrity on the oscilloscope.
- Cross-Validation & Redundant Trial Verification: Execute repeated forward and reverse sweeps to detect hysteresis, thermal drift, or non-linear saturation effects across the device under test (DUT).
- Shutdown, De-energization & Data Archival: Reduce source excitation smoothly to zero, de-energize all primary supplies, discharge residual capacitive elements, and export raw telemetry to the data buffer.
YOUR NOTEBOOK · 0 OBSERVATIONS
Turn measurements into electrical engineering insight.
Points are your recorded observations. The solid regression line validates Op-Amp Inverting Amplifier mathematical scaling.
LINEAR REGRESSION FIT · y = mx + b
V_out = -4.7000 · V_in
| # | Input Voltage V_in (V) | Inverted Output Voltage V_out (V) | Input voltage V_in (V) | Inverted output voltage V_out (V) |
|---|
No readings yet. Execute an electrical trial and record it.
CHECK YOUR UNDERSTANDING
Explain what the circuit metrics mean.
Question 1: In the study of Op-Amp Inverting Amplifier, the primary dependent variable measured is:
The experimental protocol directly measures Inverted Output Voltage V_out as a function of the manipulated Input Voltage V_in.
Question 2: The mathematical relationship governing Op-Amp Inverting Amplifier is modeled as:
Linear regression across calibrated observations confirms the governing equation V_out = -4.7000 · V_in with R² > 0.999.
Question 3: The target benchmark parameter derived from regression analysis is:
The experimental slope and intercept directly yield Inverting Closed-Loop Voltage Gain (|A_v|) with a theoretical reference value of 4.7 V/V.
Question 4: Which instrumentation technique effectively eliminates lead wire resistance error?
Four-terminal Kelvin sensing uses separate pairs of current-carrying and voltage-sensing electrodes, eliminating voltage drops along current-carrying leads.
THEORY AND ELECTROMAGNETIC CONTEXT
Electrical engineering background & physical principles.
The experimental analysis of operational amplifier inverting and non-inverting closed-loop gain & virtual ground analysis investigates the electrotechnical behavior of precision op-amp linear breadboard module. This university laboratory module focuses on negative feedback, virtual ground concept & gain-bandwidth product, establishing accurate mathematical transfer characteristics across standard operational domains.
V_out = -4.7000 · V_in
Calibrated using the Precision Op-Amp Linear Breadboard Module under controlled temperature and 64-bit IEEE 754 precision instrumentation buffers. Ordinary least-squares regression yields R² > 0.99999.