Seekat part list

PART SUPPLIER PART NO.(link) PRICE (as of 9/14) QTY  SUBTOTAL
AD5764 Eval board  Digikey  EVAL-AD5764EBZ-ND $98.75 2 $197.50
ADUM4160 USB isolator Digikey  EVAL-ADUM4160EBZ-ND $66.50 1 $66.50
D-SUB cable (for power) Digikey AE9869-ND $3.00 1 $3.00
D-SUB/ terminal block bulkhead adaptor Digikey 277-2668-ND $22.07 1 $22.07
Indicator lights – bicolor Digikey 558-3001-007F $2.86 1 $2.86
3 position .100" terminal block Digikey  A98334-ND $1.99 3 $5.97
2 position .100" terminal block Digikey A98333-ND $1.55 3 $4.65
Right angle header Digikey  S1112EC-40-ND $0.74 1 $0.74
Straight header Digikey S1012EC-40-ND $0.56 1 $0.56
Enclosure Par-metal 14-19101B $151.00 1 $151.00
6" BNC/SMB bulkhead cable Amazon (link) $6.00 8 $48.00
Jumper wire Amazon (link) $9.45 1 $9.45
Arduino UNO Amazon (link) $23.11 1 $23.11
6" USB-A to USB-B cable Amazon (link) $4.67 2 $9.34
USB-A to USB-B feedthrough  L-com ECF504-UAB $6.25 1 $6.25
5/15/15 Triple output power supply Acopian  51515T6A $315.00 1 $315.00
Seekat Arduino shield OSHPark link $23.30 1/3 $7.76
Total  $873.76

A significant fraction of the cost comes from the power supply, the enclosure, and the USB isolator. If cost is a more important concern that noise (the differences may be minor) and appearance (the differences may not be minor), almost $500 can be saved by eliminating the USB isolator and finding lower cost alternatives for the enclosure and power supply, such as this very inexpensive switching power supply: Mean Well RT-65C. Noise measurements using Acopian vs. Mean Well power supplies showed a slightly higher 1 kHz peak (~few hundred nV/√Hz) for the cheaper Mean Well power supply but no other differences.