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SI8030AA-B-IU

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by Ray

Skyworks Solutions Digital Isolators, QSOP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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SI8030AA-B-IU

Skyworks Solutions · Digital Isolators · QSOP-16

SI8030AA-B-IU from Skyworks Solutions, in a QSOP-16. 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 Side-1 power supply. Recommended operating range 3.15-5.5 V. Bypass to GND1 with a 0.1 µF capacitor placed as close to the package as possible.
2 GND1 power_in Side-1 ground reference. Common return for VDD1 and the A1-A3 input channels.
3 A1 input Side-1 digital input for isolated channel 1 (forward path A1→B1). Schmitt-trigger input; VT+ = 1.6 V typ, VT- = 1.2 V typ; VIH ≥ 2.0 V, VIL ≤ 0.8 V.
4 A2 input Side-1 digital input for isolated channel 2 (forward path A2→B2). Schmitt-trigger input; same thresholds as A1.
5 A3 input Side-1 digital input for isolated channel 3 (forward path A3→B3). Schmitt-trigger input; same thresholds as A1.
6 NC unconnected No connect. Not internally bonded; may be left floating, tied to VDD1, or tied to GND1.
7 NC unconnected No connect. Not internally bonded; may be left floating, tied to VDD1, or tied to GND1.
8 GND1 power_in Side-1 ground reference (second GND1 pin). Tie together with pin 2 to the side-1 ground plane.
9 GND2 power_in Side-2 ground reference. Common return for VDD2 and the B1-B3 output channels. Isolated from GND1 across the internal barrier.
10 EN2 input Side-2 active-high output enable. Drive high to enable B1-B3 drivers; drive low to place B1-B3 in a high-impedance tri-state. IENH ≈ 2 µA at VIH, IENL ≈ 16 µA at VIL. Enable-to-data-valid and enable-to-tri-state times are ~10 ns typ.
11 NC unconnected No connect. Not internally bonded; may be left floating, tied to VDD2, or tied to GND2.
12 B3 tri_state Side-2 digital output for isolated channel 3 (forward path A3→B3). Push-pull CMOS with ~50 Ω ±40% output impedance; VOH ≥ VDD2-0.4 V at -4 mA, VOL ≤ 0.4 V at +4 mA. Enters high-Z when EN2 is low; defaults low if the output side is powered but the input side is not.
13 B2 tri_state Side-2 digital output for isolated channel 2 (forward path A2→B2). Same drive characteristics as B3; tri-stated by EN2 = low.
14 B1 tri_state Side-2 digital output for isolated channel 1 (forward path A1→B1). Same drive characteristics as B3; tri-stated by EN2 = low.
15 GND2 power_in Side-2 ground reference (second GND2 pin). Tie together with pin 9 to the side-2 ground plane.
16 VDD2 power_in Side-2 power supply. Recommended operating range 3.15-5.5 V. Bypass to GND2 with a 0.1 µF capacitor placed as close to the package as possible.

Key specifications

Parameter Value
Manufacturer Skyworks Solutions
Package QSOP-16
Category Signal Isolation Devices
Pins 16

Ordering variants

Same part, different packaging or reel option.

  • Si8030AA-B-IU
  • Si8030AA-B-IUR
  • Si8035AA-B-IU
  • Si8035AA-B-IUR
  • Si8040AA-B-IU
  • Si8040AA-B-IUR
  • Si8045AA-B-IU
  • Si8045AA-B-IUR
  • Si8050AA-B-IU
  • Si8050AA-B-IUR
  • Si8055AA-B-IU
  • Si8055AA-B-IUR
  • Si8065AA-B-IU
  • Si8065AA-B-IUR

CAD (KiCad official)

  • Symbol: SI8030AA-B-IU
  • Footprint: Package_SO:QSOP-16_3.9x4.9mm_P0.635mm
  • 3D model: QSOP-16 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Skyworks Solutions datasheet (None pp, sha256 fa8ba26bdc6f8298, 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