M-system 20VS5-213 User manual

20VS5-213
P. 1 / 4EM-4429 Rev.1
ISOLATION AMPLIFIER
(high-accuracy, input isolation, external synchronous) MODEL
20VS5-213
INSTRUCTION MANUAL
BEFORE USE ....
Thank you for choosing M-System. Before use, please check
contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact M-System’s Sales Office or representatives.
■PACKAGE INCLUDES:
Amplifier ....................................................................... (1)
■MODEL NO.
Confirm that the model number described on the product is
exactly what you ordered.
■INSTRUCTION MANUAL
This manual describes necessary points of caution when
you use this product, including installation, connection and
basic maintenance procedures.
POINTS OF CAUTION
■POWER INPUT RATING & OPERATIONAL RANGE
•PowerSupply
•UseClockGenerator(model:20VS5-2).
•When20VS5-2isnotused,anexternallysupplied0–15
Vsquarewave,dutycycle50%±5%,210kHz±5%clock
can be used.
•Powerconsumption:Approx.15mADC(noload)
■ENVIRONMENT
•Indooruse
•Donotinstalltheunitwhereitissubjectedtocontinuous
vibration.Donotsubjecttheunittophysicalimpact.
•Environmentaltemperaturemustbewithin-10to+70°C
(14to158°F)withrelativehumiditywithin30to90%RH
in order to ensure adequate life span and operation.
■WIRING
•Do not install cables (power supply, input and output)
close to noise sources (relay drive cable, high frequency
line, etc.).
•Do not bind these cables together with those in which
noisesarepresent.Donotinstalltheminthesameduct.
■INSTALLING THE MODULE
Whenitisinstalledontheprintedwiringboard,landdiam-
eterø1.5andthrough-holeø0.9arerecommended.
■AND ....
•Theunitisdesignedtofunctionassoonaspowerissup-
plied,however,awarmupfor10minutesisrequiredfor
satisfying complete performance described in the data
sheet.
•With voltage output, do not leave the output terminals
shortcircuited for a long time. The unit is designed to en-
dure it without breakdown, however, it may shorten ap-
propriate life duration.
CHECKING
1) Terminalwiring:Checkthatwiringiscorrectlyconnect-
ed according to the connection diagram.
2) Powerinputvoltage:Checkvoltageacrossthepins.
3) Input:Checkthattheinputsignaliswithin0–100%of
the full-scale.
4) Output: Check that the load resistance meets the de-
scribed specifications.

20VS5-213
P. 2 / 4EM-4429 Rev.1
TERMINAL CONNECTIONS
■EXTERNAL DIMENSIONS mm (inch)
■TERMINAL ASSIGNMENTS
2
FEEDBACK 1
6
14
15
5
3
4
17
16
Note. The reference voltage source is common to the COM (–), terminal 4.
OUTPUT
EXTERNAL CLOCK / POWER SUPPLY*2
+
–
+
–
(–)
COM (–)
INPUT NON-INVERTING INPUT
INVERTING INPUT
REFERENCE VOLTAGE SOURCE*1
(+)
*1. To be used in the printed wiring board on which the unit is mounted.
*2. It is available to drive with external Clock Generator (model: 20VS5-2).
CLOCK INPUT, 0 – 15V
210 kHz
PIN ASSIGNMENT
6
5
4
3
2
1
REFERENCE VOLTAGE SOURCE (–)
REFERENCE VOLTAGE SOURCE (+)
COM (–)
NON-INVERTING INPUT
17
16
15
14
OUTPUT (+)
OUTPUT (–)
POWER SUPPLY (–)
POWER SUPPLY (+) CLOCK INPUT 0–15V
INVERTING INPUT
FEEDBACK
161417
12.7 (.5) 20.32 (.8) 7.62
(.3)
0.5 (.02)
2.54 (.1) 0.25
(.01)
20.32 (.8)
MAX. 47.5 (1.87) 10.7 (.42)
MAX. 16 (0.63)7.75
(.31)
2.55 (.1)

20VS5-213
P. 3 / 4EM-4429 Rev.1
APPLICATION EXAMPLES
Theprimaryamplierinthisunitishighaccurate.Installingexternalresistorstotheinvertinginput(pin2)andthefeed-
back (pin 1), this unit can be used as a non-inverting or inverting amplifier.
Theseriesresistanceoftheamplier,R1+R2mustbe10kΩormoreand200kΩorless.
The output is proportional to the input.
Thegainis0.97.
E.g.±9.7VDCfor±10VDCinput.
The output is inverted to the input. The
gain is -1.
E.g.+10VDCfor-10VDCinputand-10V
DCfor+10VDCinput.
Foranon-invertingamplicationtheout-
put is following.
VO=(1+R1/R2) × VIN
WhenR1=10kΩ,R2=10kΩ,thentheout-
putisfollowing.Thegainis2.
VO=2×VIN
Foraninvertingamplicationtheoutput
is following.
VO =-(R1/R2) × VIN
WhenR1=20kΩ,R2=10kΩ,thentheout-
putisfollowing.Thegainis-2.
VO=-(20kΩ/10kΩ)× VIN=-2× VIN
+
–
+
–
+
–
1
2
Non-inverting circuit G = 0.97
OUTPUT ±9.7V DC
–
+
REFERENCE
VOLTAGE SOURCE
n
Non-inverting amplifier circuit: Basic example of G = 0.97
INPUT ±10V DC
+
–
4
3
5
6
17
16
+
–
EXTERNAL CLOCK / POWER 0 - 15V
14
15
+
–
+
R2R1
–
+
–
Inverting circuit G = -1
OUTPUT ±10V DC
■ Inverting amplifier circuit: Basic example of G = -1 (output inverted to the input) (R1 ≈ R2)
INPUT ±10V DC +
–
–
+
REFERENCE
VOLTAGE SOURCE
1
2
4
3
5
6
17
16
+
–
EXTERNAL CLOCK / POWER 0 - 15V
14
15
+
–
+
R2R1
–
+
–
Non-inverting amplifier circuit G = 1 + R1/ R2
OUTPUT VO
■ Non-inverting amplifier circuit: Example of G = 1 + R1/ R2
INPUT VIN
+
–
–
+
REFERENCE VOLTAGE SOURCE
1
2
4
3
5
6
+
–
EXTERNAL CLOCK / POWER 0 - 15V
17
16
14
15
+
–
+
R2R1
–
+
–
Inverting amplifier circuit G = -R1/ R2
OUTPUT VO
■ Inverting amplifier circuit: Example of G = -R1/ R2(output inverted to the input)
INPUT VIN +
–
–
+
REFERENCE VOLTAGE SOURCE
1
2
4
3
5
6
+
–
EXTERNAL CLOCK / POWER 0 - 15V
17
16
14
15

20VS5-213
P. 4 / 4EM-4429 Rev.1
For a non-inverting amplica-
tion with external adjustments,
when the combined resistance of
the span adjustment and 9kΩ is
10kΩ,thegainis(1+10kΩ/R1)
× VIN.Withthespanadjustment
(2kΩ),theoutputiscongurable.
Thezeroisadjustablewitharef-
erencevoltagesourceof±15VDC
andtheattenuationof200Ωand
30kΩ.
For an inverting amplication
withexternaladjustments,when
the combined resistance of the
span adjustment and 9kΩ is
10kΩ, the gain is -(10kΩ / R2) ×
VIN.  With the span adjustment
(2kΩ),theoutputiscongurable.
Thezeroisadjustablewitharef-
erencevoltagesourceof±15VDC
andtheattenuationof200Ωand
30kΩ.
MAINTENANCE
Regularcalibrationprocedureisexplainedbelow:
■CALIBRATION
Warmuptheunitforatleast10minutes.Apply0%,25%,
50%, 75% and 100% input signal.  Check that the output
signal for the respective input signal remains within accu-
racy described in the data sheet.
M-SYSTEM WARRANTY
M-System warrants such new M-System product which it manufactures to be free from defects in materials and workmanship during the 36-month period following the date that such
product was originally purchased if such product has been used under normal operating conditions and properly maintained, M-System’s sole liability, and purchaser’s exclusive
remedies, under this warranty are, at M-System’s option, the repair, replacement or refund of the purchase price of any M-System product which is defective under the terms of this
warranty. To submit a claim under this warranty, the purchaser must return, at its expense, the defective M-System product to the below address together with a copy of its original
sales invoice.
THIS IS THE ONLY WARRANTY APPLICABLE TO M-SYSTEM PRODUCT AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. M-SYSTEM SHALL HAVE NO LIABILITY FOR CONSEQUENTIAL, INCIDENTAL OR
SPECIAL DAMAGES OF ANY KIND WHATSOEVER.
M-System Co., Ltd., 5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN, Phone: [phone], Fax: [phone], E-mail: [e-mail]
+
–
+
–
Non-inverting amplifier circuit zero/span adjustments (input ±5V, output ±10V)
OUTPUT ±10V DC
■ Non-inverting amplifier's circuit with external adjustments: Example of G = 2
+
–
–
+REFERENCE
VOLTAGE
SOURCE
9kΩ
10kΩ
50kΩ
(ZERO)
2kΩ
(SPAN)
INPUT ±5V DC
10kΩ
30kΩ
200Ω
+
–
1
2
4
3
5
6
+
–
EXTERNAL
CLOCK / POWER
0 - 15V
17
16
14
15
+
–
Inverting amplifier circuit zero/span adjustments (input ±10V, output ±10V)
■ Inverting amplifier's circuit with external adjustments: Example of G = -1 (output inverted to the input)
+
–
–
+REFERENCE
VOLTAGE
SOURCE
9kΩ
10kΩ
100kΩ
(ZERO)
2kΩ
(SPAN)
INPUT ±10V DC
10kΩ
30kΩ
200Ω
+
–
+
–
OUTPUT ±10V DC
1
2
4
3
5
6
+
–
EXTERNAL
CLOCK / POWER
0 - 15V
17
16
14
15
■

Multi-channel
20VS5–2
20VS5–213
8ch
8
1
9
2
POWER SUPPLY
15
14
20VS5–213
･
･
･
･
･
･
15
14