AD8036an Clamp Op Amp Clamped Non-Inverting Amplifier

Application

This circuit shows AD8036an as a non-inverting amplifier with external high and low clamp references. It is useful for understanding how the clamp pins bound the output swing while the amplifier still behaves like a normal closed-loop stage inside that range.

Design Context

Vin drives the non-inverting input through the switch, RF and RG set a nominal gain of 2, and VH/VL provide +0.5 V and -0.5 V clamp references. The output load and voltage probe make the limited output waveform visible on the chart.

Expected Behavior

For small signals the output follows the input gain. As the requested output exceeds the clamp range, Vout should flatten near the clamp limits instead of continuing to swing linearly.

Key Values

• Vin: 1 V AC source through the switch.
• RF and RG: 1K each for nominal 2x non-inverting gain.
• VH: +0.5 V clamp reference.
• VL: -0.5 V clamp reference.
• Supplies: +15 V and -15 V.

Suggested Experiments

• Raise or lower VH and VL and observe the output clipping range.
• Reduce Vin amplitude to compare unclamped and clamped operation.
• Change RF/RG to see how gain interacts with the clamp limits.

Featured Component

AD8036an Clamp Op Amp is the featured seven-pin op amp; the demo highlights the input, feedback, output, supply, and clamp-reference connections.