SWR200 is a Precision Sine Wave Reference providing an ultra stable sine wave output of +7.071V at ±0.5% initial accuracy and temperature coefficient as low as 20 ppm/°C over the full military temperature range. The extreme accuracy is made possible by a chopper-based AGC circuit. The temperature characteristic of the chopper circuit compensates the typical nonlinearity of the internal DC zener reference, resulting in a nearly linear amplitude-temperature characteristic. Frequency of the SWR200 is programmable with two external capacitors.
The SWR200 series is available in a 14-pin bottom braze package, hermetically sealed, and “M” versions are screened for high reliability and quality. SWR200 is well suited for any application requiring a stable sine wave source. The SWR200 can be used as a reference source in precision sensing systems based on LVDT or RVDT position sensors. A programmable AC reference can be constructed using the SWR200 as a reference for a high accuracy multiplying Digital to Analog Converter.
Applications
| Part | Sine Wave Output (VRMS) | Initial Error (%) | Distortion (% Thd) | Temperature Coefficient (ppm/°C) | Temperature Range (°C) |  Package |
|---|---|---|---|---|---|---|
| SWR200 | 7.071 | 0.5 | 0.5 | 20 | -25 to 85 (SWR200C); -55 to 125 (SWR200M) |
14 DIP |
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