Micro-DMM
oihdesigns
A small, open hardware DMM
Components (21)
| Reference | Value | Description |
|---|---|---|
| Q1,Q3 | AO3400A MOSFET | 4.2A Id, 20V Vds, N-Channel MOSFET, SOT-23 |
| Q2,Q4 | MMBT3904 | 0.2A Ic, 40V Vce, Small Signal NPN Transistor, SOT-23 |
| U1 | MAX1683 | IC REG CHARGE PUMP 2VIN SOT23-5 |
| U2,U3 | LM4040DBZ-2.5 | 2.500V Precision Micropower Shunt Voltage Reference, SOT-23 |
| C1,C2 | 4.7uF | Unpolarized capacitor |
| C3,C4 | 0.1uF | Unpolarized capacitor |
| D1 | LED | Light emitting diode |
| D2-D5 | D_Schottky | Schottky diode |
| J1 | Conn_01x01_Pin | Generic connector, single row, 01x01, script generated |
| J2 | Conn_01x08_Pin | Generic connector, single row, 01x08, script generated |
| J3,J4 | Barrel_Jack | Generic connector, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/) |
| R1 | 1K | Resistor, US symbol |
| R2 | 0 | Resistor, US symbol |
| R3,R12 | 4.7K | Resistor, US symbol |
| R4,R10,R13,R19 | 10K | Resistor, US symbol |
| R5,R14 | 15K |