The document presents a circuit design for a precision ramp generator where the repetition rate is controlled by a DC input voltage. The circuit utilizes an OP-215 dual operational amplifier to generate a negative ramp with a slope proportional to the input voltage, achieving high amplitude stability over a wide range of operating conditions.
Exact component values are provided for a specific operating range of 10Hz to 1kHz. The text details the circuit operation, including the reset mechanism and the generation of a 5us pulse from amplifier A2, ensuring a ramp amplitude of zero to -10V is accurate and stable.
| Operating Range | 10Hz to 1kHz |
|---|---|
| Op Amp Model | OP-215 |
| C1 Value | 1200pF |
| R0 Value | 10ka |
| Rg Value | 2.0ka |
| C2 Value | 200pF |
| Ramp Amplitude | zero to -10V |
| A2 Output Pulse | 5us |
The OP-215 dual operational amplifier can be used for this range.
The repetition rate is controlled by a DC input voltage (V1).