Multimeter
schuyler4
My multimeter design.
Components (39)
| Reference | Value | Description |
|---|---|---|
| Q1-Q4,Q12,Q15-Q25 | 2N7002 | 0.115A Id, 60V Vds, N-Channel MOSFET, SOT-23 |
| Q5-Q11,Q13,Q14 | BSS84 | -0.13A Id, -50V Vds, P-Channel MOSFET, SOT-23 |
| U1 | SC0915 | Raspberry Pi Pico Embedded Dev Module | Raspberry Pi SC0915 |
| U2 | LM4030-2.5 | 2.500V Ultra-High Precision Shunt Voltage Reference, SOT-23-5 |
| U3 | OPA4388IDR | Quad operational amplifier |
| U4 | CC56-12SURKWA | 4 digit 7 segment hyper red LED, common cathode |
| U5 | TS3A4751PWR | |
| U8 | LMV761MF | |
| U9 | INA326 | Precision, Rail-to-Rail I/O Instrumentation Amplifier, MSOP-8 package |
| U10 | MCP3561 | |
| C1-C6,C13,C17 | 0.1uF | Unpolarized capacitor |
| C14 | 10nF | Unpolarized capacitor |
| C15 | 1nF | Unpolarized capacitor |
| D1,D3,D4 | LTST-C170KRKT | Light emitting diode |
| D2 | B340 | Schottky diode |
| D5 | DDZ9684-7 | Zener diode |
| D6 | SMF6.0A | Zener diode |
| D7 | BAT46W-7-F | Schottky diode |
| F1 | 500mA | Fuse |
| H1-H4 | M3 | Mounting Hole with connection |
| J1 | B1HSW6 | USB Type B connector |
| J3 | Red Banana Plug | Generic connector, single row, 01x01, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J4 | Black Banana Plug | Generic connector, single row, 01x01, script generated (kicad-library-utils/schlib/autogen/connector/) |
| R1,R64,R65 | 1k+/-0.1% | Resistor, US symbol |
| R2,R39,R60,R68 | 100k+/-0.1% | Resistor, US symbol |
| R3-R6,R23-R27,R42-R44,R59,R62,R63,R69 | 10k | Resistor, US symbol |
| R7,R21,R36,R38,R40,R41,R53 | 10k+/-0.1% | Resistor, US symbol |
| R8 | 1.62k | Resistor, US symbol |
| R9-R12,R32,R34,R35,R45-R52,R54,R55,R57,R58 | 1k | Resistor, US symbol |
| R13-R20,R28,R30,R31 | 649 | Resistor, US symbol |
| R22 | 500k+/-0.1% | Resistor, US symbol |
| R29 | 0 | Resistor, US symbol |
| R33 | 5k+/-0.1% | Resistor, US symbol |
| R37 | 5.11M+/-1% | Resistor, US symbol |
| R56 | 499+/-0.1% | Resistor, US symbol |
| R61,R66 | 50k+/-0.1% | Resistor, US symbol |
| SW1 | SW_Push | Push button switch, generic, two pins |
| SW3 | GF-161-0005 | Slide Switch,Mini,G Series,3PDT,ON-ON,Top Actuated,0.5A,125VAC/DC,PC Pin | CW Industries GF-161-0005 |
| TP1-TP5 | Pad | test point (alternative shape) |