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gastelumosiel/active-6-band-audio-equalizer-pcb
Design, fabrication, and manufacturability analysis of a 4-layer PCB for a 6-band active audio equalizer using Sallen-Key filters and OPA4134 op-amps.

Texas Instruments
-18V~-2.25V、2.25V~18V -40℃~+125℃ 0.2V/us 100pA 100pA 100uA 140dB 1nV/℃ 1uV 20nV/√Hz@1kHz 30mA 4.5V~36V 550kHz EMI filtering/RF suppression、Zero drift / auto-zero、Reverse-phase input protection Four channels Rail-to-rail output SOIC-14 Precision Op Amps ROHS
The OPA4187ID is a precision Op Amp made by Texas Instruments in a SOIC-14 package with 14 pins. -18V~-2.25V、2.25V~18V -40℃~+125℃ 0.2V/us 100pA 100pA 100uA 140dB 1nV/℃ 1uV 20nV/√Hz@1kHz 30mA 4.5V~36V 550kHz EMI filtering/RF suppression、Zero drift / auto-zero、Reverse-phase input protection Four channels Rail-to-rail output SOIC-14 Precision Op Amps ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:OPA4387PWR, from EasyEDA) and its footprint (Package_SO:SOIC-14_3.9x8.7mm_P1.27mm, from KiCad's library), ready for a KiCad board. 1,007 are in stock at JLCPCB (part C2060239). 3 open-source boards in 2 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | OUTA | Output |
| 2 | INA- | Unspecified |
| 3 | INA+ | Unspecified |
| 4 | V+ | Unspecified |
| 5 | INB+ | Unspecified |
| 6 | INB- | Unspecified |
| 7 | OUTB | Output |
| 8 | OUTC | Output |
| 9 | INC- | Unspecified |
| 10 | INC+ | Unspecified |
| 11 | V- | Unspecified |
| 12 | IND+ | Unspecified |
| 13 | IND- | Unspecified |
| 14 | OUTD | Output |

gastelumosiel/active-6-band-audio-equalizer-pcb
Design, fabrication, and manufacturability analysis of a 4-layer PCB for a 6-band active audio equalizer using Sallen-Key filters and OPA4134 op-amps.

gastelumosiel/active-6-band-audio-equalizer-pcb
Design, fabrication, and manufacturability analysis of a 4-layer PCB for a 6-band active audio equalizer using Sallen-Key filters and OPA4134 op-amps.

tombueng/hilprobe
HILprobe: multi-function UUT probe for hardware-in-the-loop testing - RS-485, CAN FD, logic analyzer, 4-ch scope, two programmable UUT supplies. KiCad 10, 6 layers, RP2350B + ESP32-S3.
<iframe src="https://pcbkit.io/embed/parts/ti/OPA4187ID" title="OPA4187ID in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ti/OPA4187ID.jpg" alt="OPA4187ID" width="1200" height="900">[](https://pcbkit.io/parts/ti/OPA4187ID)Yes. The symbol is EasyEDA_Cloud:OPA4387PWR and the footprint Package_SO:SOIC-14_3.9x8.7mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
SOIC-14, with 14 pins. Its footprint is drawn on this page.
Texas Instruments publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C2060239, with 1,007 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the GS8554-SR by Gainsil, the GS8334-SR by Gainsil, the RS8554XP by Jiangsu RUNIC Tech and the RS8559XP by Jiangsu RUNIC Tech. Check their datasheets: a part that fits the footprint may still differ in its ratings.
3 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.