Engineering Hub/Analog & Circuit Theory/Operational Amplifiers & Active Applications Lab

Analog & Circuit TheoryDiscipline: Analog Electronic Circuits (EEE2002)

Operational Amplifiers & Active Applications Lab

Interactive op-amp laboratory covering linear precision processing (Inverting, Non-Inverting, 3-Op-Amp InAmp with CMRR, Integrator/Differentiator), 2nd-order active Sallen-Key filters, and nonlinear Schmitt triggers / Superdiode precision rectifiers.

Instrument State:Live Analytical DSP Engine

Operational Amplifiers & Active Applications Lab

EEE2002 Unit 4

Interactive precision linear processing, instrumentation CMRR, 2nd-order active filters, and nonlinear Schmitt/Superdiodes.

Presets:

High-impedance 3-op-amp instrumentation amplifier rejecting 2V common-mode 50Hz hum while magnifying a 50mV differential bridge signal by 100×.Gain: 100.0 (40.0 dB)

Op-Amp Circuit Configurationinstrumentation

Linear Op-Amp Topologies

Differential Gain Resistor Rg0.202 kΩ (202 Ω)

Common-Mode Rejection Ratio (CMRR)90 dB (31623:1)

Common-Mode Noise Amplitude (50 Hz)2.0 V

AC Input Peak (Vin)50 mV

Calculated Gain:100.01 (40.0 dB)

Peak Output (Vout):5.00 V

Phase Inversion:0°

Op-Amp Mathematical Law

v_{out} = \left(1 + \frac{2 R_1}{R_g}\right)\frac{R_3}{R_2} (v_2 - v_1)

True differential instrumentation amplifier rejecting common-mode noise.

Vcc = ±15V (Vsat = ±13.5V)

Ch1: Input Vin(t) Ch2: Output Vout(t)✓ Linear Operation

Vin: 50 mV pkVout: 5.00 V pkPhase: 0°

Closed Gain

100.0

40.0 dB

Output Peak

5.00 V

Linear

CMRR

90 dB

Rejection ratio

Rails (Vcc)

±15 V

Headroom ±13.5V

Technical Instrument Specifications

Linear CircuitsInverting, Non-Inverting, InAmp (CMRR), Integrator, Differentiator

Active Filters2nd-Order Sallen-Key Lowpass, Highpass, Bandpass (-40 dB/dec)

Nonlinear CircuitsSchmitt Trigger (Hysteresis ΔVH), Superdiode (0V Drop)

Operating Rails±Vcc Power Rails with Saturation Headroom Clipping

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