Difference between revisions of "POT4a BOM"
From DIDEAS Wiki
m |
m |
||
| Line 36: | Line 36: | ||
|- | |- | ||
| − | |1 || RA3 || 3266W- | + | |1 || RA3 || 3266W-102ND(bridge) || (burns3266w) multiturn trim pot || [http://www.digikey.com/scripts/DkSearch/dksus.dll?PName?Name=3266W-102-ND DIG] || $3.58 || open for POT (gain of 1), 1K for bridge? |
|- | |- | ||
Revision as of 22:15, 11 July 2005
POT4a Bill of Materials
| 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 | 53047-0510 | 5 pin, 1.25mm header | Molex | ? | mates with commercial knee, 4 pin header PN:53047-0410 | ||
| 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 | RHM1.00MCCT-ND | 1 meg EIA0805 | DIG | 0.038 | |||
| 1 | JC1 | P15.0HCT | 15 ohm EIA0605 | DIG | 0.09 | jumper to enable able COM driving the shield pin on PC2 | ||
| 1 | RA1 | RHM499FCT-ND (gain=100), open (gain=1) | 499 ohm, EIA1206 resistor to set gain | DIG | 0.047 | for INA128 gain = 1+50K/(RA1 | (RA2+RA3)) | |
| 1 | RA2 | RHM49.9CCT-ND | 50 ohm (G=1000) EIA0805 to set MAX adjustable gain | DIG | ? | for INA128 gain = 1+50K/RA1 | ||
| 1 | RA3 | 3266W-102ND(bridge) | (burns3266w) multiturn trim pot | DIG | $3.58 | open for POT (gain of 1), 1K 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 | CF1 | ?? 490-1642-1-ND | 10.0nF EIA0805 | DIG | should be 10.5nF | |||
| 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 | PCC1893CT-ND (1.0uF) 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 | PCC2296CT-ND | 2.2uF, 25V X5R EIA1206 | DIG | 0.389 | use 25V or larger bipolar precision cap here to increase C in output RC filter. Total C is CB1 + CB2 + CB3. ALT: PCC1883CT-ND=0.1u 25V X7R; PCC1893CCT-ND=1u 25V X7R ; PCC2326CT-ND=10u 25V X5R | ||
| 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 | PCC2296CT-ND | 2.2uF, 25V X5R EIA1206 | DIG | 0.389 | use 25V or larger bipolar precision cap here to increase C in output RC filter. Total C is CB4 + CB5 + CB6. ALT: PCC1883CT-ND=0.1u 25V X7R; PCC1893CCT-ND=1u 25V X7R ; PCC2326CT-ND=10u 25V X5R | ||
| 1 | CB6 | 495-1087-ND | 1uF, 50V (bipolar) metalized poly cap | DIG | 0.41 | output RC filter is CB4 + CB5 + CB6 | ||
| 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 | ||
| reference precision (adjustable) voltage | ||||||||
| 2 | RR1, RR4 | RHM787FCT-ND | 787ohm 1/4watt EIA1206 | DIG | 0.047 | |||
| 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 |
