Programmable Gain Amplifier User Manual
Contents
1. 5V 50 mA 500 As specified 80 db decade Programmable from 10 to 5000 Windows 98 ME NT 2000 or XP English and German versions supported 2003 Multi Channel Systems MCS GmbH2. C to 50 C 10 to 85 non condensing 172 mm x 220 mm x 52 mm 1400 g 5 7Vto 12V DC 350 mA positive rail 110 mA negative rail 16 300 mV gt 10 Q paralleled by 8 pF lt 2 UV nws full bandwidth inputs short circuited en 25 nV N Hz 16 5V 50 mA 50 Q As specified 80 db decade Programmable from 10 to 5000 PGA32 10 C to 40 C 0 C to 50 C 10 to 85 non condensing 172 mm x 220 mm x 52 mm 1400 g 5 7Vto 12V DC 550 mA positive rail 225 mA negative rail 32 300 mV gt 10 Q paralleled by 8 pF lt 2 UV pms full bandwidth inputs short circuited en 25 nV N Hz 32 5V 50 mA 50 Q As specified 80 db decade Programmable from 10 to 5000 PGA64 10 C to 40 C 0 C to 50 C 10 to 85 non condensing 172 mm x 220 mm x 52 mm 1400 g 5 7Vto 12VDC 725 mA positive rail 450 mA negative rail 64 300 mV gt 10 Q paralleled by 8 pF lt 2 UV pms full bandwidth inputs short circuited en 25 nV Ny Hz 64 5V 50 mA 509 As specified 80 db decade Programmable from 10 to 5000 Programmable gain amplifiers with 16 32 and 64 input channels are available under the name PGA16 PGA32 and PGA64 respectively The gain can be flexibly adjusted from 10 to 5000 with the program FiltAmp Amplifiers can be ordered with any bandwidth configurations by the user s choice The name specifies the configuration The first number after the channel n
3. The common input signal is a sinus wave of about 1000 Hz Programmable Gain Amplifier User Manual 3 Connectors Pin Layout 3 1 Input Connector TI 39 xe 51 OOOO OOOOO OOOO gt 1 2 18 34 50 66 67 68 OOOO GNDP power ground Reference electrode Channel 01 channel 16 Channel 17 channel 32 only used for FA32 FA48 FA64 Channel 33 channel 48 only used for FA48 FA64 Channel 49 channel 64 only used for FA64 Positive supply voltage 5 V 9 V Negative supply voltage 5 V 9 V 3 2 Output Connector be mere Si mae lies O00000 gt elel 18 34 50 66 67 68 O00000 OOOO GNDP power ground GNDI connected to GNDP Channel 01 channel 16 Channel 17 channel 32 only used for FA32 FA48 FA64 Channel 33 channel 48 only used for FA48 FA64 Channel 49 channel 64 only used for FA64 Positive supply voltage 5 V 9 V Negative supply voltage Technical Specifications PGA Programmable Gain Amplifier Operating temperature Storage temperature Relative humidity Dimensions W x D x H Weight Supply voltage Supply current Number of input channels Input voltage Input impedance Input noise Noise density 1 kHz Number of output channels Output voltage Output current Output impedance Bandwidth Filter slope Gain PGA16 10 C to 40 C 0
4. Connection Rear Panel Connection FiltAmp Program Technical Specifications Connectors Pin Layout Input Connector Output Connector A UUU W Programmable Gain Amplifier User Manual Welcome to the Programmable Gain Amplifier The Multi Channel Systems device PGA6 4 is an amplifier of analog signals with the option to change the gain The input signal amplitude can be increased from a factor of 10 up to 5000 The gain is selectable by software and can be set for each of the 64 signal channels individually The main parts consist of the analog filter stages of a logic part to set the amplification of an EEPROM to save the potentiometer settings of a level converter accepting RS232 signals and of a power stage The signals of the 64 input channels are amplified according to the frequency band The band filter the signals according to the frequency parts The outputs are observable on the output connector Examples of output signals are given A figure in the appendix demonstrates the dependance of the output signal amplitude from the frequency for the used frequency band Input signals are connected using a 68 pin connector Output signals are transferred to other devices using a 68 pin connector too The pin layout of both connectors is given in a table The digital signals to change the gain are delivered using a 9 pin SUB D connector via the serial interface of a PC An internal power supply stage transforms the input voltages of a
5. LA LA C B bo o c o c D io E 2 ca 2 co oy io os lA Jeo fra ro lG gt J ha ha 2 G G oo lG lta fea la la la gt gt P re PaO llle lola foo fm lei le DI lKa bI Ra Pho lKa pS PS PS lea l a LGA am 2 LA co GC OF lG bJ PP Ph lKa Ra pp l a H hi LA lG a poo E Pho po oo po E lI fo mm mm G GC OE Bo ES Solel T HE LS H ool eee mm GC Set all Set all For Help press F Output of the PGA Multi Channel Systems Programmable Gain Amplifier V 1 2 File Unbenannt Date April 24 2001 13 14 Frequency band 1 Hz 6000 Hz Frequency band 300 Hz 6000 Hz Ch No Gain chNo Gain 5 4000 6 4000 7 4000_ 8 4000 o 2000 10 200 3 4000 14 2000 z 4000 18 4000 Programmable Gain Amplifier User Manual Test of all channels using the MC_Rack software Poo WT 50 me M sk j spike Detection Level 50 ms T Peak Detection Datasre 2 lag Display 1 load jo oo 4 50 1 ia Axis ae KA G E a R A 5 a a m T S D 5 a Cc window Help E Display 1 24 000 sec Measurement EH Data Source Hoo HCR ack Display 1 Eie Edt F Rackl rck Rack For Help press F1 As demonstrated the 64 output signals coming from the frequency band shows the same output signal The channels 3 amp 30 of the frequency band have an other amplification compared to the other channels
6. Programmable Gain Amplifier User Manual Information in this document is subject to change without notice No part of this document may be reproduced or transmitted without the express written permission of Multi Channel Systems MCS GmbH While every precaution has been taken in the preparation of this document the publisher and the author assume no responsibility for errors or omissions or for damages resulting from the use of information contained in this document or from the use of programs and source code that may accompany it In no event shall the publisher and the author be liable for any loss of profit or any other commercial damage caused or alleged to have been caused directly or indirectly by this document 2001 2005 Multi Channel Systems MCS GmbH All rights reserved Printed 2005 01 31 Multi Channel Systems MCS GmbH AspenhaustraBe 21 72770 Reutlingen Germany Fon 49 71 21 90 925 0 Fax 49 71 21 90 92 5 11 info multichannelsystems com www multichannelsystems com Microsoft and Windows are registered trademarks of Microsoft Corporation Products that are referred to in this document may be either trademarks and or registered trademarks of their respective holders and should be noted as such The publisher and the author make no claim to these trademarks 2 1 2 2 2 3 2 4 4 1 4 2 Table of Contents Welcome to the Programmable Gain Amplifier Setting Up and Operating the PGA Power Supply Front Panel
7. ive supply voltage GND 4mm black plug connector ground 6 0 V 4mm blue plug connector negative supply voltage Warning Do not mismatch the polarity of the power supply False connection may damage the device Front Panel Connection The only connection on the front of the PGA64 is the connector for in coupling the analog signals The input connector has to be plugged into the 68 pin front connector 0600 808008680 ecece 800008 Rear Panel Connection The output signal cable OUTPUT the download cable SERIAL COM and the power supply cable POWER have to be connected on the rear side of the case The positions are indicated below Q O OUTPUT SERIAL STATUS LED wat Two LEDs light up if the supply voltages are correct Their brightness should not change otherwise the DC shows instabilities 2 4 Programmable Gain Amplifier User Manual FiltAmp Program Important For proper use do not switch OFF the amplifier and ON again while the program is running Program settings example 7 S Unbenannt Filtamp File Edit iew Help Dla eel St f Frequency Band 1 Hz 6000 Hz Frequency Band 300 Hz 6000 Hz bo LC Cc LC E m m C Part bh Lo Cc fu ca Lo C am co co a LA GC B bo o c o c G 1 CG RE 4 a LA 2 GC 1 C COM2 Set am LA GC LA LA GC mm LA GC LA LA GC VE LC LC LC a mm m m Connection Ok Test LA LA LC
8. ny external power supply bin into the supply voltages of 3 0 V and 5 0 V The supply bin should deliver raw voltages of 6 0 V at least for connecting use 4 mm connectors A software package installed on a computer with a Windows operating system makes it easy to set the digital potentiometers to the selected values Note check the serial connection using a test button first In a next step the gain can be selected individually for each channel Or use the pull down menu for a general setting Push the download button and the values are written to an EEPROM in the PGA64 Automatically the new values are written into the digital potentiometers too If you switch off the PGA64 the last setting of the potentiometers are stored After switching on again these values will be restored An online Help is available and will explain the program functions During loading down the settings to the PGA please stop any running program or set to sleep mode k Program mable Gain Amplifier tichannel ics systems 2 1 2 2 2 3 Programmable Gain Amplifier User Manual Setting Up and Operating the PGA Power Supply The recommended value of supply voltage should be U 6 0 V The limits of proper operation ranges from 5 7 V to 12 0 V Please be careful Use the lowest voltage as possible As higher the input supply voltage as higher the internal heat produced by the voltage regulators 6 0 V 4 mm red plug connector posit
9. umber specifies the lowest frequency followed by the highest frequency For example PGA16 300 3000 stands for a PGA with 16 channels and 300 Hz to 3 kHz bandwidth The PGA1632 and the PGA3264 feature two different pass bands Signals are split and the two pass bands are send to two separate channels For 16 input and 32 output channels or 32 input and 64 output channels FiltAmp program Operating system Page 1 of 1 Windows 98 ME NT 2000 or XP English and German versions supported Windows 98 ME NT 2000 or XP English and German versions supported Windows 98 ME NT 2000 or XP English and German versions supported PGA1632 10 C to 40 C 0 C to 50 C 10 to 85 non condensing 172 mm x 220 mm x 52 mm 1400 g 5 7Vto 12V DC 550 mA positive rail 225 mA negative rail 16 300 mV gt 10 Q paralleled by 8 pF lt 2 UV pms full bandwidth inputs short circuited en 25 nV Ny Hz 32 5V 50 mA 509 As specified 80 db decade Programmable from 10 to 5000 Windows 98 ME NT 2000 or XP English and German versions supported Date of Print 11 07 2005 multichannel systems PGA3264 10 C to 40 C 0 C to 50 C 10 to 85 non condensing 172 mm x 220 mm x 52 mm 1400 g 5 7Vto 12VDC 725 mA positive rail 450 mA negative rail 32 300 mV gt 10 Q paralleled by 8 pF lt 2 UV pms full bandwidth inputs short circuited en 25 nV N Hz 64
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