component
OPA657U
Public Made by Adomby adom
Texas Instruments FET Input Amplifiers, SOIC-8. Pinout cross-checked by two models against the datasheet, 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
markdownOPA657U
Texas Instruments · FET Input Amplifiers · SOIC-8
OPA657U from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | NC | unconnected | No connection. |
| 2 | VIN- | power_in | Inverting input accepts voltages between -4 V and +2.5 V. |
| 3 | VIN+ | power_in | Noninverting input accepts voltages between -4 V and +2.5 V. |
| 4 | -VS | power_in | Negative power supply with absolute maximum rating of ±6.5 V total bipolar supplies. |
| 5 | NC | unconnected | No connection. |
| 6 | VOUT | output | Amplifier output with maximum voltage swing ±3.9 V and maximum output current ±70 mA. |
| 7 | +VS | power_in | Positive power supply with absolute maximum rating of ±6.5 V total bipolar supplies. |
| 8 | NC | unconnected | No connection. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
OPA657U - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
opa657u-etched.step/opa657u-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);opa657u.step/opa657u.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (40 pp, sha256
8d7a3a398f558fe9, retrieved 2026-09-24, 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).