HCPL-7840-000E from Broadcom AVAGO, in a DIP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	VDD1	power_in	Input-side supply, 4.5 V to 5.5 V nominal 5 V. Powers the input sigma-delta modulator. Requires a 0.1 uF bypass capacitor between pins 1 and 4 (VDD1 to GND1).
2	VIN+	input	Non-inverting analog input. Connected across the external current-sense resistor with VIN-. Recommended linear input range approximately +/-200 mV (referenced to GND1).
3	VIN-	input	Inverting analog input. Together with VIN+ forms the differential sense input across the shunt resistor. Typically tied to GND1 for single-ended sensing.
4	GND1	power_in	Input-side ground reference for VDD1 and the analog inputs. Isolated from GND2 by the optical isolation barrier (3750 Vrms/1 min UL 1577).
5	GND2	power_in	Output-side ground reference for VDD2 and the differential outputs. Isolated from GND1 by the optical isolation barrier.
6	VOUT-	output	Inverting side of the differential analog output (referenced to GND2). Combined with VOUT+ forms a fully differential output nominally 8x the differential input voltage.
7	VOUT+	output	Non-inverting side of the differential analog output (referenced to GND2). Typically fed into an external differential-to-single-ended op-amp stage.
8	VDD2	power_in	Output-side supply, 4.5 V to 5.5 V nominal 5 V. Powers the isolated output amplifier stage. Requires a 0.1 uF bypass capacitor between pins 5 and 8 (VDD2 to GND2).

Key specifications

Parameter	Value
Manufacturer	Broadcom AVAGO
Package	DIP-8
Category	Op-amp/Cmp
Pins	8

Ordering variants

Same part, different packaging or reel option.

HCPL-7840-000E
HCPL-7840-000E-060E
HCPL-7840-000E-300E
HCPL-7840-000E-500E
HCPL-7840-000E-360E
HCPL-7840-000E-560E

CAD (KiCad official)

Symbol: HCPL-7840-000E
Footprint: Package_DIP:DIP-8_W7.62mm
3D model: DIP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`hcpl-7840-000e.step`	271 KB	You want the bare part, or you mark your own boards.
`hcpl-7840-000e-etched.step`	2.6 MB	You want the part with `HCPL-7840-000E` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 633 faces against 148 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Broadcom AVAGO datasheet (19 pp, sha256 ee447b310c078c12, retrieved 2026-08-17, tier: lcsc)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF