component

EG8305

Public Unreviewed

by Ray

EG Micro Audio Power OpAmps, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentop-amp-cmpeg8305
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗

Symbol & Footprint

Schematic Symbol

Open full view ↗

PCB Footprint

Open full view ↗
Contents

README

markdown

EG8305

EG Micro · Audio Power OpAmps · SOP-8

EG8305 from EG Micro, in a SOP-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 CTRL input Chip enable / shutdown control input. Pulling this pin high (typ. VIH ≥ 1 V at VDD=5.0 V) enables the amplifier; low (VIL ≤ 0.7 V) puts the device into shutdown (ISD < 1 µA).
2 BYPASS input Internal reference / bias bypass capacitor node. Connect a 1 µF ceramic capacitor from this pin to GND to filter the internal mid-rail reference for low-noise operation.
3 INP input Differential audio input, positive side. AC-couple the audio source through Ci (typ. 0.1 µF) to this pin; internal input resistor Ri ≈ 20 kΩ, external Re typically 30 kΩ to set closed-loop gain up to 25 dB.
4 INN input Differential audio input, negative side. AC-couple through Ci (typ. 0.1 µF); usually tied to signal ground through the same 30 kΩ / 0.1 µF network as INP for single-ended sources.
5 VON output Class-D bridge-tied-load (BTL) output, negative side. Drives one terminal of the speaker (4 Ω or 8 Ω). Half of the H-bridge with high-side PMOS / low-side NMOS RDS(on) ≈ 465 mΩ at VDD=5 V.
6 VDD power_in Supply voltage input, 3.0 V to 5.5 V (absolute max 6.0 V). Decouple with a 1 µF ceramic close to the pin and an additional 10 µF bulk capacitor for low-frequency noise rejection.
7 GND power_in Device ground. Return for supply decoupling and speaker filter capacitors; connect to the board power ground plane.
8 VOP output Class-D bridge-tied-load (BTL) output, positive side. Drives the other terminal of the speaker; complements VON to deliver up to 3 W into 4 Ω at 5 V.

Key specifications

Parameter Value
Manufacturer EG Micro
Package SOP-8
Category Op-amp/Cmp
Pins 8

CAD (KiCad official)

  • Symbol: EG8305
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: EG Micro datasheet (11 pp, sha256 accdf75a68f48226, retrieved 2026-08-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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