
Nocodephprobe
cristoper/nocodephmeter
A pH meter for use with inexpensive pH probes (for gardening, home experiments) with temperature compensation and digital readout but no microcontroller
The TLV272D is an operational Amplifier made by onsemi in a SOIC-8 package with 8 pins. -40℃~+125℃ 145dB 2 2.7V~16V 2.8V/us 200pA 2pA 2uV/℃ 30nV/√Hz@1kHz 3MHz 3mV 410uA 60mA Rail-to-rail output SOIC-8 Operational Amplifier ROHS.
PCBKit's library has its KiCad symbol (tinkerforge:TLV272, from Tinkerforge) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C2902314). 7 open-source boards in 6 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | — | Output |
| 2 | - | Input |
| 3 | + | Input |
| 4 | - | Input |
| 5 | + | Passive |
| 6 | - | Passive |
| 7 | — | Passive |
| 8 | + | Input |

cristoper/nocodephmeter
A pH meter for use with inexpensive pH probes (for gardening, home experiments) with temperature compensation and digital readout but no microcontroller


Autonomous-Motorsports-Purdue/AMP_PCBv2
Files relating to version 2 of the PCB for AMP kart




<iframe src="https://pcbkit.io/embed/parts/onsemi/TLV272D" title="TLV272D in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/onsemi/TLV272D.jpg" alt="TLV272D" width="1200" height="900">[](https://pcbkit.io/parts/onsemi/TLV272D)Yes. The symbol is tinkerforge:TLV272 and the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
SOIC-8, with 8 pins. Its footprint is drawn on this page.
onsemi publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C2902314, with 0 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the TS922IDT by STMicroelectronics, the LMV358B-SR by 3PEAK, the MC33178D by onsemi and the BUF634AID by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
7 boards in 6 repositories on GitHub; the most starred are listed on this page, with their KiCad files.