| Electronics > Projects, Designs, and Technical Stuff |
| Dropping 100mV exactly |
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| elektrinis:
So I have this project, where I need to drop 100mV (±20mV): from 4.3V to 4.2V. Current around 50mA, only one-way. Max Iq= 50μA. The drop should stay within ±20mV in wide current range, from 1μA to 50mA. One extra problem: free space is very limited. I have space for maybe single SOT23 package... Was thinking maybe find an opamp with BJT output with correct rail-to-rail drop, but could not find a suitable one. Was also thinking about series voltage references and LDOs, but no luck as well. What are my options?? |
| JPortici:
Check out TS922 |
| elektrinis:
--- Quote from: JPortici on March 12, 2019, 09:49:25 am ---Check out TS922 --- End quote --- Iq = 3mA ... |
| JPortici:
uh! i forgot about the Iq |
| RES:
A difference amplifier (high current >=100mA opamp) plus a multi turn pot or adjustable voltage reference? AD8603 |
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