Micro-DMM
oihdesigns
A small, open hardware DMM
Components (26)
| Reference | Value | Description |
|---|---|---|
| Q3 | MMBT3904 | 0.2A Ic, 40V Vce, Small Signal NPN Transistor, SOT-23 |
| Q8 | AO3400A MOSFET | 4.2A Id, 20V Vds, N-Channel MOSFET, SOT-23 |
| U1 | LTV-814 | AC/DC Optocoupler, Vce 35V, CTR 20%, DIP4 |
| U3 | ADS1115IDGS | Ultra-Small, Low-Power, I2C-Compatible, 860-SPS, 16-Bit ADCs With Internal Reference, Oscillator, and Programmable Comparator, VSSOP-10 |
| U7 | MAX1683 | IC REG CHARGE PUMP 2VIN SOT23-5 |
| U10 | LM4040DBZ-2.5 | 2.500V Precision Micropower Shunt Voltage Reference, SOT-23 |
| U13 | ISO1540 | I2C Isolator, 2.5 kVrms, Bidirectional clock and data, SOIC-8 |
| U14 | RFM-0505S | |
| C4,C7,C8,C17 | 0.1uF | Unpolarized capacitor |
| C9,C10 | 4.7uF | Unpolarized capacitor |
| D1 | LED | Light emitting diode |
| D4,D5 | D_Schottky | Schottky diode |
| J1 | Voltmeter | Generic connector, single row, 01x06, script generated |
| J2,J15 | Barrel_Jack | Generic connector, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/) |
| R1,R5 | 1K | Resistor, US symbol |
| R2,R6,R9 | 0 | Resistor, US symbol |
| R3,R8 | 10K | Resistor, US symbol |
| R7 | 22K | Resistor, US symbol |
| R12 | 100K | Resistor, US symbol |
| R14 | 1M | Resistor, US symbol |
| R17,R18 | 499.0K | Resistor, US symbol |
| R24 | 15K | Resistor, US symbol |
| R27 | 4.7K | Resistor, US symbol |
| RN1 | 1K x4 | 4 resistor network, parallel topology, SIP package |
| RN3 | 10k x4 | 4 resistor network, parallel topology, SIP package |
| SW3 | SW_Push | Push button switch, generic, two pins |