Difference between revisions of "POT4a BOM"

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{| border="0" cellpadding="12" width="100%"
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|+POT4a (REV-A)
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|-
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!width="5%"| NUM ||width="10%" | REFDES || width="15%"|Part# || width="20%"|Desc || width="10%"|Source || width="10%"|Price || width="30%"|Notes
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|1 || PC2 || WM4203-ND || 5 pin, 0.1" molex header || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=wm4203-nd DIG] || 0.59 || mates with : WM2014-ND and requires pins WM2312-ND or WM1114-ND
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|-
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|1 || PC1 || ? || 5 pin, 1.25mm header || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=wm4203-nd DIG] || ?||  mates with commercial knee
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|-
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|1 || CC1 || PCC1828CT-ND || 0.1u, 25V X7R EIA0805 multilayer ceramic || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=PCC1828CT-ND DIG] || 0.062 || optional - provides LP input filter (ideally use a good cap here)
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|-
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|1 || RC1 || RHM1.0MACT-ND || 1 meg EIA0805  || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=RHM1.0MACT-ND DIG] || 0.076 || optional - stack over CC3 to provide 0 input for no input connection
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|-
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|1 || JC1 || P15.0HCT || 15 ohm EIA0605 || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=P15.0HCT DIG] || 0.09 || jumper to enable able COM driving the shield pin on PC2
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|-
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|1 || RA1 || 331-499FCT-ND (gain=100), open (gain=1) || EIA1206 resistor to set gain || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=331-499FCT-ND DIG] || 0.088 || for INA128 gain = 1+50K/(RA1 |||| (RA2+RA3))
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|-
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|1 || RA2 || 331-499FCT-ND  || 50 ohm (G=1000) EIA0805 to set MAX adjustable gain || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=331-499FCT-ND DIG] || ? || for INA128 gain = 1+50K/RA1
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|-
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|1 || RA3 || 3266W-103-ND(POT), 3266W-503ND(bridge) || (burns3266w) multiturn trim pot  || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=3266W-103-ND DIG] || $3.58 || 10K for POT, 50K for bridge
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|-
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|1 || UA1 || INA128UA || Instrumentation Amp SO8 package || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=INA128UA DIG] || 5.80 || ALT : many - LT1167, INA122 (Vsup > 32) gain equation may be different
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|-
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|1 || RO1 || 3266W-103-ND(POT), 3266W-503ND(bridge) || (burns3266w) multiturn trim pot  || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=3266W-103-ND DIG] || $3.58 || 10K for POT, 50K for bridge
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|-
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|1 || U1 || 296-1390-5-ND|| LM324 quad opamp SO14 (narrow) package || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=296-1390-5-ND DIG] || 0.45 || ALTs : quad opamp (Vsup > 32)
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|-
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! || || 1st LP filter
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|-
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|2 || RF1,RF2, RF4 || RHM13.3KCCT-ND || 13.3K 1% EIA0805 || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=RHM13.3KCCT-ND DIG] || 0.038
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|-
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|1 || RF3 || open || 1% EIA0805 || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name= DIG] || ?
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|-
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|1 || RF4 || open || 1% EIA0805 || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name= DIG] || ?
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|-
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|1 || CF1 || ?? 490-1644-1-ND || 10.5nF EIA0805 || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=490-1644-1-ND DIG] || ?
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|-
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|1 || CF2 || 490-1635-1-ND || 5.1nF EIA0805 || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=490-1635-1-ND DIG] || 0.27
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|-
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|1 || JF1 || S1012-36-ND (populates 12) || 36 pin 0.1" header pins (3 needed from strip)|| [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=S1012-36-ND DIG] || 1.03/9  || this part is 36 pins, 3 pins are needed to make a 3way jumper
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|-
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|1 || JF1 || S9000-ND || 0.1" shorting jumper || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=S9000-ND DIG] || 0.093 || used to select amplifer filter path
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|-
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! || || Position Intensity LED
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|-
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|1 || RK1 || RHM100CCT-ND || 100 ohm EIA0805 || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name= DIG] || 0.093 ||
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|-
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|1 || RK2 || RHM1.00KCCT-nd || 1k, 1% EIA0805 || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name= DIG] || 0.093 ||
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|1 || CK1 || ? || 100pf EIA0805 || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name= DIG] || 0.093 ||
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|1 || DK1 || P507CT-ND || dual gull wing red/green LED || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=P507CT-ND DIG] || ? ||
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|-
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! || || BW limited derivative
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|-
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|1 || RD1 || 311-4.99MCCT-ND || 4.99M 1% EIA0805 || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=311-4.99MCCT-ND DIG] || 0.08
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|-
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|1 || RD2 || RHM3.00KCCT-ND || 3.0K 1% EIA0805 || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=RHM3.00KCCT-ND DIG] || 0.038
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|-
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|1 || CD1 || PCC101CGCT-ND || 100pF EIA0805 || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=PCC101CGCT-ND DIG] || 0.049
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|-
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|1 || CD2 || ?? 490-1673-1-ND || 0.1u EIA1206 25V X7R|| [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=490-1673-1-ND DIG] || 0.132 || larger value will improve low frequency performance
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|-
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! || || differential position output
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|-
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| 2 || RB1,RB2 || P0.0ACT-ND || 0.0 ohm EIA0805 || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=P0.0ACT-ND DIG] || 0.077 || increase R for output RC filter by adding matched precision resistors here.  Driver output is already 50 ohm.
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|-
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| 1 || CB1,CB2 || ?? PCC1864CT-ND || 0.1uF 50V EIA1206 Y5V || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=PCC1864CT-ND DIG] || 0.072 || use 25V or larger bipolar precision cap here to increase C in output RC filter.    Total C is CB1 + CB2 + CB3
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|-
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| 1 || CB3 || 495-1087-ND || 1uF, 50V (bipolar) metalized poly cap || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=495-1087-ND DIG] || 0.41 || output RC filter is CB1 + CB2 + CB3
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|-
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| 1 || UB1 || DRV135UA-ND || differential driver in SO8 package || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=DRV135UA-ND DIG] || 4.39 ||
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|-
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| 1 || PN1 || WM4203-ND || 0.1" 5pin molex header || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=WM4203-ND DIG] || 0.59 || mates with : WM2014-ND and requires pins WM2312-ND or WM1114-ND
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|-
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! || || differential velocity output
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|-
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| 2 || RB3, RB4 || P0.0ACT-ND || 0.0 ohm || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=P0.0ACT-ND DIG] || 0.077 || see notes for RB1,RB2
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|-
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| 1 || CB4, CB5 || PCC1864CT-ND || 0.1uF 50V EIA1206 Y5V|| [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=PCC1864CT-ND DIG] || 0.072 ||
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|-
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| 1 || CB6 || 495-1087-ND || 1uF, 50V (bipolar) metalized poly cap || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=495-1087-ND DIG] || 0.41 || output RC filter is CB3 + CB4
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|-
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| 1 || UB2 || DRV135UA-ND || differential driver in SO8 package || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=DRV135UA-ND DIG] || 4.39 ||
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|-
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| 1 || PN2 || WM4200-ND || 0.1" 2pin molex header || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=WM4200-ND DIG] || 0.34 || mates with : WM2011-ND and requires pins WM2312-ND or WM1114-ND
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|-
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! || || precision (adjustable) voltage reference
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|-
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| 2 || RR1, RR4 || RHM787FCT-ND || 787ohm 1/4watt EIA1206 || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=RHM1.60KCCT-ND DIG] || 0.047 || pair of resistors stacked to increase power to 1/4watt
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|-
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| 1 || RR2 || RHM7.32KCCT-ND || 7.32K 1% EIA0805 || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=RHM7.32KCCT-ND DIG] || 0.038 ||
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|-
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| 1 || RR3 || RHM2.49KCCT-ND || 2.49K 1% EIA0805 || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=RHM2.49KCCT-ND DIG] || 0.038 ||
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|-
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| 1 || UR1 || 296-10129-1-ND || TL1431CD adjustable voltage reference in SO8 package || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=296-10129-1-ND DIG] || 0.72 ||
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|-
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| 1 || CR1 || 493-2374-1-ND || 6.8V, 16V tant (size A / 3216) || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=493-2374-1-ND DIG] || 0.209 || > 6.8uF to avoid reference instability
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|-
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! || || power section
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|-
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| 2 || CE1,CE3 || 493-2365-1-ND || 10uF 16V tant (Size A / 3216) || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=493-2365-1-ND DIG] || 0.26 || require : C>1.0uF, V>=16V size A tant
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|-
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| 2 || CE2, CE4 || PCC1853CT-ND || 0.1uF EIA0805 25V Y5V || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=PCC1853CT-ND DIG] || 0.052 || require : 0.1u chip cap
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|-
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| 2 || RL1,RL2 ||  RHM2.70kCCT-ND || 2.7K EIA0805 5% || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=RHM2.7kcCT-ND DIG] || 0.038 || 2k to 3k resistor is fine
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|-
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| 2 || DL1,DL2 || P503CT-ND || red gull wing SMT 4.2mm LED || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=P503CT-ND DIG] || 0.33 || P514-ND (green) for bridge board
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|-
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| 1 || SH1 || P0.0ACT-ND || 0.0 ohm || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=P0.0ACT-ND DIG] || 0.077 || GND to COM solder bead?
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|-
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| 2 || RN1, RN2 || RHM15.0FCT-ND || 15ohm EIA1206 1/4W || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=RHM15.0FCT-ND DIG]  || 0.047 || requires < 20 ohm - reduces inrush current when board first powered and limited total current
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|-
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|}

Revision as of 23:30, 23 June 2005

POT4a Bill of Materials



POT4a (REV-A)
NUM REFDES Part# Desc Source Price Notes
1 PC2 WM4203-ND 5 pin, 0.1" molex header DIG 0.59 mates with : WM2014-ND and requires pins WM2312-ND or WM1114-ND
1 PC1  ? 5 pin, 1.25mm header DIG  ? mates with commercial knee
1 CC1 PCC1828CT-ND 0.1u, 25V X7R EIA0805 multilayer ceramic DIG 0.062 optional - provides LP input filter (ideally use a good cap here)
1 RC1 RHM1.0MACT-ND 1 meg EIA0805 DIG 0.076 optional - stack over CC3 to provide 0 input for no input connection
1 JC1 P15.0HCT 15 ohm EIA0605 DIG 0.09 jumper to enable able COM driving the shield pin on PC2
1 RA1 331-499FCT-ND (gain=100), open (gain=1) EIA1206 resistor to set gain DIG 0.088 for INA128 gain = 1+50K/(RA1 (RA2+RA3))
1 RA2 331-499FCT-ND 50 ohm (G=1000) EIA0805 to set MAX adjustable gain DIG  ? for INA128 gain = 1+50K/RA1
1 RA3 3266W-103-ND(POT), 3266W-503ND(bridge) (burns3266w) multiturn trim pot DIG $3.58 10K for POT, 50K for bridge
1 UA1 INA128UA Instrumentation Amp SO8 package DIG 5.80 ALT : many - LT1167, INA122 (Vsup > 32) gain equation may be different
1 RO1 3266W-103-ND(POT), 3266W-503ND(bridge) (burns3266w) multiturn trim pot DIG $3.58 10K for POT, 50K for bridge
1 U1 296-1390-5-ND LM324 quad opamp SO14 (narrow) package DIG 0.45 ALTs : quad opamp (Vsup > 32)
1st LP filter
2 RF1,RF2, RF4 RHM13.3KCCT-ND 13.3K 1% EIA0805 DIG 0.038
1 RF3 open 1% EIA0805 DIG  ?
1 RF4 open 1% EIA0805 DIG  ?
1 CF1  ?? 490-1644-1-ND 10.5nF EIA0805 DIG  ?
1 CF2 490-1635-1-ND 5.1nF EIA0805 DIG 0.27
1 JF1 S1012-36-ND (populates 12) 36 pin 0.1" header pins (3 needed from strip) DIG 1.03/9 this part is 36 pins, 3 pins are needed to make a 3way jumper
1 JF1 S9000-ND 0.1" shorting jumper DIG 0.093 used to select amplifer filter path
Position Intensity LED
1 RK1 RHM100CCT-ND 100 ohm EIA0805 DIG 0.093
1 RK2 RHM1.00KCCT-nd 1k, 1% EIA0805 DIG 0.093
1 CK1  ? 100pf EIA0805 DIG 0.093
1 DK1 P507CT-ND dual gull wing red/green LED DIG  ?
BW limited derivative
1 RD1 311-4.99MCCT-ND 4.99M 1% EIA0805 DIG 0.08
1 RD2 RHM3.00KCCT-ND 3.0K 1% EIA0805 DIG 0.038
1 CD1 PCC101CGCT-ND 100pF EIA0805 DIG 0.049
1 CD2  ?? 490-1673-1-ND 0.1u EIA1206 25V X7R DIG 0.132 larger value will improve low frequency performance
differential position output
2 RB1,RB2 P0.0ACT-ND 0.0 ohm EIA0805 DIG 0.077 increase R for output RC filter by adding matched precision resistors here. Driver output is already 50 ohm.
1 CB1,CB2  ?? PCC1864CT-ND 0.1uF 50V EIA1206 Y5V DIG 0.072 use 25V or larger bipolar precision cap here to increase C in output RC filter. Total C is CB1 + CB2 + CB3
1 CB3 495-1087-ND 1uF, 50V (bipolar) metalized poly cap DIG 0.41 output RC filter is CB1 + CB2 + CB3
1 UB1 DRV135UA-ND differential driver in SO8 package DIG 4.39
1 PN1 WM4203-ND 0.1" 5pin molex header DIG 0.59 mates with : WM2014-ND and requires pins WM2312-ND or WM1114-ND
differential velocity output
2 RB3, RB4 P0.0ACT-ND 0.0 ohm DIG 0.077 see notes for RB1,RB2
1 CB4, CB5 PCC1864CT-ND 0.1uF 50V EIA1206 Y5V DIG 0.072
1 CB6 495-1087-ND 1uF, 50V (bipolar) metalized poly cap DIG 0.41 output RC filter is CB3 + CB4
1 UB2 DRV135UA-ND differential driver in SO8 package DIG 4.39
1 PN2 WM4200-ND 0.1" 2pin molex header DIG 0.34 mates with : WM2011-ND and requires pins WM2312-ND or WM1114-ND
precision (adjustable) voltage reference
2 RR1, RR4 RHM787FCT-ND 787ohm 1/4watt EIA1206 DIG 0.047 pair of resistors stacked to increase power to 1/4watt
1 RR2 RHM7.32KCCT-ND 7.32K 1% EIA0805 DIG 0.038
1 RR3 RHM2.49KCCT-ND 2.49K 1% EIA0805 DIG 0.038
1 UR1 296-10129-1-ND TL1431CD adjustable voltage reference in SO8 package DIG 0.72
1 CR1 493-2374-1-ND 6.8V, 16V tant (size A / 3216) DIG 0.209 > 6.8uF to avoid reference instability
power section
2 CE1,CE3 493-2365-1-ND 10uF 16V tant (Size A / 3216) DIG 0.26 require : C>1.0uF, V>=16V size A tant
2 CE2, CE4 PCC1853CT-ND 0.1uF EIA0805 25V Y5V DIG 0.052 require : 0.1u chip cap
2 RL1,RL2 RHM2.70kCCT-ND 2.7K EIA0805 5% DIG 0.038 2k to 3k resistor is fine
2 DL1,DL2 P503CT-ND red gull wing SMT 4.2mm LED DIG 0.33 P514-ND (green) for bridge board
1 SH1 P0.0ACT-ND 0.0 ohm DIG 0.077 GND to COM solder bead?
2 RN1, RN2 RHM15.0FCT-ND 15ohm EIA1206 1/4W DIG 0.047 requires < 20 ohm - reduces inrush current when board first powered and limited total current
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