component
CA-IS3082CWX
Public Made by Adomby adom
Chipanalog Isolated RS-485/422 Transceivers, SOIC-16-300mil. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownCA-IS3082CWX
Chipanalog · Isolated RS-485/422 Transceivers · SOIC-16-300mil
CA-IS3082CWX from Chipanalog, in a SOIC-16-300mil. 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 | VDDA | power_in | Logic side power supply input; connect 0.1μF and 1μF bypass capacitors between VDDA and GNDA pins as close as possible to device pins. |
| 2 | GNDA | power_in | Logic side ground, providing ground reference for digital signals. |
| 3 | RO | output | Receiver data output; when RE is low (receiver enabled), outputs high if (VA - VB) ≥ -50mV or low if (VA - VB) ≤ -200mV; outputs high impedance when RE is high. |
| 4 | RE | input | Receiver enable control input with internal weak pull-up; low level enables receiver, high level disables receiver output. |
| 5 | DE | input | Driver enable control input with internal weak pull-down, high level active; low level inhibits data transmission and sets driver output to high impedance. |
| 6 | DI | input | Driver data input with internal weak pull-up; when DE is high, high level on DI produces high on A and low on B; low level produces opposite result. |
| 7 | GNDA | power_in | Logic side ground, providing ground reference for digital signals. |
| 8 | GNDA | power_in | Logic side ground, providing ground reference for digital signals. |
| 9 | GNDB | power_in | Bus side ground, providing ground reference for RS-485 bus signals. |
| 10 | GNDB | power_in | Bus side ground, providing ground reference for RS-485 bus signals. |
| 11 | NC | unconnected | No internal connection; can be connected to VDDB, GNDB, or left floating. |
| 12 | A | bidirectional | RS-485 bus in-phase output from driver / in-phase input to receiver; differential pair with pin 13; operates as driver output when DE=high, receiver input when RE=low. |
| 13 | B | bidirectional | RS-485 bus anti-phase output from driver / anti-phase input to receiver; differential pair with pin 12; operates as driver output when DE=high, receiver input when RE=low. |
| 14 | NC | unconnected | No internal connection; can be connected to VDDB, GNDB, or left floating. |
| 15 | GNDB | power_in | Bus side ground, providing ground reference for RS-485 bus signals. |
| 16 | VDDB | power_in | Bus side power supply input; connect 0.1μF and 1μF bypass capacitors between VDDB and GNDB pins as close as possible to device pins. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Chipanalog |
| Package | SOIC-16-300mil |
| Category | Signal Isolation Devices |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
CA-IS3082CWX - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files:
ca-is3082cwx-etched.step/ca-is3082cwx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ca-is3082cwx.step/ca-is3082cwx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Chipanalog datasheet (22 pp, sha256
9eab96b1cb24d97f, retrieved 2026-09-21, 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: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).