Timeline for LM358 - as analog voltage mapper 3.3V to 5V
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| Feb 13, 2018 at 3:35 | comment | added | uint128_t | @PiotrBomba No, but there are plenty of parts that will. You will likely want a part which uses an external reference that can be greater than the digital supply voltage. Or use a level shifter in between. | |
| Feb 13, 2018 at 2:45 | comment | added | b6mba | @unt128_t Will this MCP4801 work with 3.3v I/O of ESP8266? Maybe, I'll switch to that next time, and now I'll use this LT1638. I don't want to make any big changes to the board I have. | |
| Feb 13, 2018 at 2:23 | comment | added | uint128_t | @PiotrBomba Oh, also, keep in mind that if all you want is a 5V DAC, there are chips that do this by themselves, almost all of which will probably outperform your digipot + op-amp solution. For example, MCP4801. Better performance, cheaper, etc. | |
| Feb 13, 2018 at 2:22 | comment | added | uint128_t | Sure, pick your favorite manufacturer's parametric tables (or Digikey). Because I like Linear, I pulled up the LT1638, which should out-perform the LM358 in most respects and is available in DIP-8. It's Voh at 5V, no-load, is 4.9V. | |
| Feb 13, 2018 at 2:19 | vote | accept | b6mba | ||
| Feb 13, 2018 at 2:19 | comment | added | b6mba | That's answer I needed! Do you know any of these with same pinout as LM358 in DIP-8 package? | |
| Feb 13, 2018 at 2:15 | history | answered | uint128_t | CC BY-SA 3.0 |