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TPA1286-SO1R
Public Made by Adomby adom
3PEAK Instrumentation Amplifiers, SOP-8. 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
markdownTPA1286-SO1R
3PEAK · Instrumentation Amplifiers · SOP-8
TPA1286-SO1R from 3PEAK, 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 | RG | passive | Gain-setting resistor terminal 1; connect external resistor RG between pins 1 and 8 to set gain G = 1 + 49.4 kΩ/RG over range 1 to 1,000; leave open for unity gain. |
| 2 | IN- | input | Negative (inverting) differential input; common-mode range (V-) + 0.1 V to (V+) - 1.5 V; input bias current 1.5 nA max; protected by ESD diodes to supply rails. |
| 3 | IN+ | input | Positive (non-inverting) differential input; common-mode range (V-) + 0.1 V to (V+) - 1.5 V; input bias current 1.5 nA max; protected by ESD diodes to supply rails. |
| 4 | V- | power_in | Negative power-supply pin; supply range ±2 V to ±18 V (4 V to 36 V single supply); bypass with 0.1 µF capacitor placed close to pin. |
| 5 | REF | input | Reference input; output is offset by the voltage applied here via an internal 20 kΩ resistor; keep driving source impedance low to preserve CMRR and gain accuracy. |
| 6 | OUT | output | Rail-to-rail voltage output; swings within 0.05 V (typ) / 0.1 V (max) of V- and within 0.12 V (typ) / 0.2 V (max) of V+ at RL = 10 kΩ; short-circuit current ±70 mA. |
| 7 | V+ | power_in | Positive power-supply pin; supply range ±2 V to ±18 V (4 V to 36 V single supply); quiescent current 3.8 mA typ / 4.5 mA max; bypass with 0.1 µF capacitor placed close to pin. |
| 8 | RG | passive | Gain-setting resistor terminal 2; connect external resistor RG between pins 1 and 8 to set gain G = 1 + 49.4 kΩ/RG over range 1 to 1,000; leave open for unity gain. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | 3PEAK |
| Package | SOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
TPA1286-SO1R - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
tpa1286-so1r-etched.step/tpa1286-so1r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tpa1286-so1r.step/tpa1286-so1r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: 3PEAK datasheet (17 pp, sha256
b5083b0c4926393c, retrieved 2026-09-21, tier: lcsc) - 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).