•• VERY HIGH ACCURACY: 7.071 Vrms ±0.05%
•• EXTREMELY LOW DRIFT:
3 ppm/°C (-55°C to +125°C)
•• EXCELLENT STABILITY: 10 ppm/1000 Hrs. Typ.
•• LOW DISTORTION:
0.1% THD @ f = 3300 Hz
•• HERMETIC 14-PIN CERAMIC DIP
•• MILITARY PROCESSING OPTION
SWR200
Precision
Sine Wave Reference
DESCRIPTION
APPLICATIONS
•• TRANSDUCER EXCITATION
•• HIGH RESOLUTION SERVO SYSTEMS
•• HIGH PRECISION TEST and
MEASUREMENT INSTRUMENTS
•• AC VOLTAGE STANDARD
•• LVDT OR RVDT REFERENCE
•• MULTIPLYING D/A REFERENCE
FEATURES
SELECTION GUIDE
Type
Output
(Typ.)
Temperature
Operating Range
Package
SWR200C
7.071V -25°C to +85°C
DIP
SWR200M
7.071V -55°C to +125°C
DIP
SWR200 is a Precision Sine Wave Reference
providing an ultra stable sine wave output of
7.071V
at
±0.05%
initial
accuracy
and
temperature coefficient as low as 3 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 is available in a 14-pin bottom
braze package. They are 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.
SWR200DS REV. D JUNE 1995
THALER CORPORATION • 2015 N. FORBES BOULEVARD • TUCSON, AZ. 85745 • (520) 882-4000
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