BIA Front End

Assembly

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Circuit that drives a 50 kHz microcurrent through one foot and measures the voltage at the other to derive body impedance.

Direct parts	5
Total parts	44
Used in	1 assembly
Class	Assembly

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Circuit 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.

BIA Front End parts and their functions

5 top-level parts · 44 parts in total · full bill of materials below

BIA Front End parts diagram: 1 AC current source, 2 sense amplifier, 3 electrode multiplexer, 4 SMD passive (R/C/L), 5 bare PCB. 44 parts in 5 top-level items. — BIA Front End parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.

#	Part	Qty	What it does
1	AC Current Source	1×	50 kHz, <1 mA
2	Sense Amplifier	1×	Differential pickup
3	Electrode Multiplexer	1×	Electrode switching
4	SMD Passive (R/C/L)	40×	Surface-mount resistors, capacitors, and inductors, typically in 0402 to 1206 packages, that set voltages, filter noise, and time signals on a circuit board.
5	Bare PCB	1×	Unpopulated printed circuit board: copper traces etched on an FR-4 glass-epoxy laminate that carry current between the components later soldered to it.

3D model

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Build & assembly graph

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Bill of materials for BIA Front End

5 top-level lines · 5 rows shown · 44 parts total · indented to 3 levels

#	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

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Where the BIA front end is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Personal Care & Grooming 1 Smart Body Composition Scale

Used in 1 assembly

Smart Body Composition Scale

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work

Vendor	HQ	Specialty	MOQ	Lead time
🇨🇳Foxconn foxconn.com ↗	Shenzhen, CN	Electronics contract mfg	1,000 pcs	6–10 wks
🇸🇬Flex (Singapore) flex.com ↗	Singapore	Electronics contract mfg	1,000 pcs	6–10 wks
🇮🇳Dixon Technologies dixoninfo.com ↗	Noida, IN	Electronics contract mfg	1,000 pcs	6–10 wks
🇨🇳BYD Electronics bydelectronic.com ↗	Shenzhen, CN	Electronics contract mfg	1,000 pcs	6–10 wks
🇸🇬Venture Corp venture.com.sg ↗	Singapore	Electronics contract mfg	1,000 pcs	6–10 wks