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SWR200 Datasheet Preview

SWR200 Datasheet

Precision Sine Wave Reference

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SWR200
Precision Sine Wave Reference
RoHS
COMPLIANT
FEATURES
• Very High Accuracy: +7.071Vrms ±0.5%
• Extremely Low Drift: 20ppm/°C
(-55°C to +125°C)
• Excellent Stability: 10ppm/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
DESCRIPTION
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 20ppm/°C over the full military temperature
range. The extreme accuracy is made possible by a chopper-based AGC circuit. The temperature characteris-
tic 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” ver-
sions 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 Ana-
log Converter.
SELECTION GUIDE
SWR200C
SWR200M
Type
Temperature
Output (TYP) Operating
Range
+7.071V
+7.071V
-25°C to +85°C
-55°C to +125°C
Package
DIP
DIP
www.apexanalog.com
© Apex Microtechnology Inc.
All rights reserved
Dec 2018
SWR200DS Rev L




APEX

SWR200 Datasheet Preview

SWR200 Datasheet

Precision Sine Wave Reference

No Preview Available !

SWR200
TYPICAL CONNECTION
Figure 1: Typical Connection
PIN DESCRIPTIONS
Pin Number
1, 2
3
7
8
9
12
13, 14
4
5
6
10, 11
Name
C1
-VPS
GND
REF_GND
OUT
+VPS
C2
C3
Extended Range
Connection
C4
NC
Description
Frequency selection capacitor connection C1. See applicable selection.
The negative supply voltage connection.
Ground.
Provided for accurate ground sensing. Internally connected to GND.
The output.
The positive supply voltage connection.
Frequency selection capacitor connection C2. See applicable selection.
Optional frequency range expansion. Connect C3 between pins 4 and 5 of value
approximately 2 x C1.
Optional frequency range expansion. See Typical Application drawing for connec-
tion.
Optional frequency range expansion. Connect C4 between pins 5 and 6 of value
approximately 20 x C2.
No connection.
2 SWR200DS Rev L


Part Number SWR200
Description Precision Sine Wave Reference
Maker APEX
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