BIA Front End
AssemblyCircuit that drives a 50 kHz microcurrent through one foot and measures the voltage at the other to derive body impedance. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for BIA Front End
5 top-level lines as of r157927| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | AC Current Source | smart-body-scale-current-source | 1× | 1 | · | part |
| 2 | Sense Amplifier | smart-body-scale-sense-amp | 1× | 1 | · | part |
| 3 | Electrode Multiplexer | smart-body-scale-mux | 1× | 1 | · | part |
| 4 | SMD Passive (R/C/L) | smd-passives | 40× | 40 | · | part |
| 5 | Bare PCB | pcb-bare | 1× | 1 | · | part |