DESCRIPTION

SWR200 is a Precision Sine Wave Reference providing an ultra stable sine wave output of +7.071 V at ±0.5 initial accuracy and temperature coeffcient 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.

FEATURES

♦ Very High Accuracy: +7.071 Vrms ±0.5

♦ Extremely Low Drift: 20 ppm/°C (-55°C to +125°C)

♦ Excellent Stability: 10 ppm/1000 Hrs. Typical

♦ Low Distortion: 0.1 Thd @ f = 3300 Hz

♦ Hermetic 14-pin Ceramic DIP

♦ Military Processing Option

APPLICATIONS

♦ Transducer Excitation

♦ High Resolution Servo Systems

♦ High Precision Test and Measurement Instruments

♦ AC Voltage Standard

♦ LVDT Or RVDT Reference

♦ Multiplying D/A Reference