Difference between revisions of "POT4 Bill of Materials"
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| − | |1 || PC1 || WM4203-ND || 5 pin, 0.1" molex header || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=wm4203-nd DIG] || 0.59 || | + | |1 || PC1 || 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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| − | |1 || CC3 || RHM1. | + | |1 || CC3 || RHM1.00MCCT-ND || 1 meg EIA0805 || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=RHM1.00MCCT-ND DIG] || 0.038 || optional - stack over CC3 to provide 0 input for no input connection |
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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 || | | 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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| − | | 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 : | + | | 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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| − | | 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 : | + | | 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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| − | | 2 || RL1,RL2 || RHM2. | + | | 2 || RL1,RL2 || RHM2.70kcCT-ND || 2.7K EIA0805 1% || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=RHM2.7kCCT-ND DIG] || 0.037|| 2k to 3k resistor is fine |
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Latest revision as of 23:39, 23 June 2005
POT4 Bill of Materials
| NUM | REFDES | Part# | Desc | Source | Price | Notes |
|---|---|---|---|---|---|---|
| 1 | PC1 | WM4203-ND | 5 pin, 0.1" molex header | DIG | 0.59 | mates with : WM2014-ND and requires pins WM2312-ND or WM1114-ND |
| 1 | CC3 | PCC1828CT-ND | 0.1u, 25V X7R EIA0805 multilayer ceramic | DIG | 0.062 | optional - provides LP input filter (ideally use a good cap here) |
| 1 | CC3 | RHM1.00MCCT-ND | 1 meg EIA0805 | DIG | 0.038 | optional - stack over CC3 to provide 0 input for no input connection |
| 2 | RC1,RC2 | P0.0ACT-ND | 0.0 ohm EIA0805 | DIG | 0.077 | short inputs |
| 4 | CC1,2,4,5 | not populated | place 0.1u caps here for additional LP input filtering | |||
| 1 | JC1 | P15.0HCT | 15 ohm EIA0605 | DIG | 0.09 | 3 way solder bead jumper - solder R between COM and SHIELD option |
| 1 | RA1 | 331-499FCT-ND (gain=100), open (gain=1) | EIA1206 resistor to set gain | DIG | 0.088 | for INA128 gain = 1+50K/RA1 |
| 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) |
| 1 | JF1 | S1012-36-ND (populates 9) | 36 pin 0.1" header pins (4 needed from strip) | DIG | 1.03/9 | this part is 36 pins, 4 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 |
| 1st LP filter | ||||||
| 2 | RF1,RF2 | RHM13.3KCCT-ND | 13.3K 1% EIA0805 | DIG | 0.038 | |
| 1 | RF3 | RHM6.65KCCT-ND | 6.65K 1% EIA0805 | DIG | 0.038 | |
| 1 | CF1 | 490-1635-1-ND | 5.1nF EIA0805 | DIG | 0.27 | |
| 1 | CF2 | 490-1644-1-ND | 22nF EIA0805 | DIG | 0.457 | |
| 2nd LP filter | ||||||
| 1 | CF3 | 490-1632-1-ND | 3.3nF EIA0805 | DIG | 0.205 | |
| 1 | CF4 | 490-1644-1-ND | 22nF EIA0805 | DIG | 0.457 | |
| 2 | RF4,RF5 | RHM6.65KCCT-ND | 6.65K 1% EIA0805 | DIG | 0.038 | |
| 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 EIA0805 25V X7R | DIG | 0.132 | larger value will improved 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 | PCC1864CT-ND | 0.1uF 50V EIA0805 Y5V | DIG | 0.072 | use 25V or larger bipolar precision cap here to increase C in output RC filter. Total C is CB1 + CB2 |
| 1 | CB2 | 495-1087-ND | 1uF, 50V (bipolar) metalized poly cap | DIG | 0.41 | output RC filter is CB1 + CB2 |
| 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 | CB3 | PCC1864CT-ND | 0.1uF 50V EIA0805 Y5V | DIG | 0.072 | |
| 1 | CB4 | 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 | ||||||
| 4 | RR1, RR4 | RHM1.60KCCT-ND | 1.60K 1/8watt EIA0805 | DIG | 0.038 | 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 1% | DIG | 0.037 | 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 |
