
Dac
eshazen/scope-clock
It seems I have a bunch of surplus 12V transformers in my office, so probably will use two of those to generate the +8V and -5V with bridge rectifiers.

The MAX503CAG+ is a digital To Analog Converter made by Maxim Integrated (Analog Devices) in a SSOP-24-208mil package with 24 pins. 0.5LSB 0℃~+70℃ 1 10 25us Parallel Voltage Buffer SSOP-24-208mil Digital to Analog Converters (DAC) ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:MAX503CAG+, from EasyEDA) and its footprint (Package_SO:SSOP-24_5.3x8.2mm_P0.65mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C1555097). 1 open-source board in 1 repository on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | D7/S1 | Unspecified |
| 2 | D8/D0 | Unspecified |
| 3 | D9/D1 | Unspecified |
| 4 | D2 | Unspecified |
| 5 | D3 | Unspecified |
| 6 | D4 | Unspecified |
| 7 | D5 | Unspecified |
| 8 | A0 | Unspecified |
| 9 | A1 | Unspecified |
| 10 | WR# | Unspecified |
| 11 | CS# | Unspecified |
| 12 | DGND | Unspecified |
| 13 | REFIN | Unspecified |
| 14 | AGND | Unspecified |
| 15 | CLR# | Unspecified |
| 16 | LDAC# | Unspecified |
| 17 | REFGND | Unspecified |
| 18 | REFOUT | Unspecified |
| 19 | VSS | Unspecified |
| 20 | VOUT | Unspecified |
| 21 | RFB | Unspecified |
| 22 | ROFS | Unspecified |
| 23 | VDD | Unspecified |
| 24 | D6/S0 | Unspecified |

eshazen/scope-clock
It seems I have a bunch of surplus 12V transformers in my office, so probably will use two of those to generate the +8V and -5V with bridge rectifiers.
<iframe src="https://pcbkit.io/embed/parts/maxim/MAX503CAG%2B" title="MAX503CAG+ in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/maxim/MAX503CAG%2B.jpg" alt="MAX503CAG+" width="1200" height="900">[](https://pcbkit.io/parts/maxim/MAX503CAG%2B)Yes. The symbol is EasyEDA_Cloud:MAX503CAG+ and the footprint Package_SO:SSOP-24_5.3x8.2mm_P0.65mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
SSOP-24-208mil, with 24 pins. Its footprint is drawn on this page.
Maxim Integrated (Analog Devices) publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C1555097, with 0 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the DAC7731EB by Texas Instruments, the DAC7731EC by Texas Instruments, the DAC7731EC/1K by Texas Instruments and the AD7840ARSZ-REEL by Analog Devices. Check their datasheets: a part that fits the footprint may still differ in its ratings.
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.