circuit·IEEE 315·hardware, education·complexity 2/3·since v0.1.0
Inverting op-amp amplifier
A practical inverting op-amp stage rendered from a SPICE-style netlist with feedback and input resistors, split supply rails, and a labelled output node.
For the electronics engineer
Scenario
An analog engineer documents a standard inverting gain stage before moving to PCB layout. The two resistors make the gain visible in the schematic: Rf / Rin = 10, so the output is an inverted, amplified version of the input.
Annotation key
type=opampselects the three-pin op-amp symbol in netlist mode.RinandRfare ordinary SPICE-style resistor lines.noninv,inv, andoutare named nets, not pixel coordinates.
How to read
The input signal enters through Rin into the inverting input. Rf feeds the output back to the same node, closing the negative feedback loop. The non-inverting input is tied to ground through Rbias, giving the stage a stable reference.