2 layers60 × 31 mm
Dac proto
saewoonam/8ch_currentsource_jlc_v3
V3 of 8 channel current source for biasing superconducting circuits
19 parts
4 layers90 × 100 mm
V3 of 8 channel current source for biasing superconducting circuits
- Size
- 90 × 100 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 237
- Nets
- 138
- Pads
- 782
- Tracks, vias
- 2,139, 213
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 29 Sep 2020
- Updated
- 29 Sep 2020
Overview
8ch v3 is an open-source printed circuit board by saewoonam, from the saewoonam/8ch_currentsource_jlc_v3 repository on GitHub. It is a 4-layer board of 90 × 100 mm with 237 parts on 138 nets, routed with 2,139 tracks and 213 vias.
It is built around the INA132UA, AD5675RBRUZ and LP5907MFX-3.3, with the TPS7A3001DGN, MMZ2012Y152B and B4B-PH-K among its other parts. Its parts include 89 capacitors, 46 resistors, 36 ICs, 17 fuses and 16 inductors.
Main components
6
INA132UA
SOIC-8-18V~-1.35V、1.35V~18V -40℃~+85℃ 0.1V/us 175uA 2.7V~36V 26mA 2uV/℃ 75nV/√Hz@1kHz 75uV 85us、88us 90dB Capacitive load driving、Integrated precision resistor network Single-Ended Single-channel SOIC-8 Differential Amplifiers ROHSTexas InstrumentsDifferential Amplifiers
AD5675RBRUZ
TSSOP-20-40℃~+125℃ 16 1uA 2.7V~5.5V 3LSB 5us 8 I2C Voltage Buffer TSSOP-20 Digital to Analog Converters (DAC) ROHSAnalog DevicesDigital To Analog Converters (DAC)
LP5907MFX-3.3
SOT-23-5-40℃~+125℃@(Tj) 1 10uVrms 12uA 250mA 250mV@(250mA) 3.3V 5.5V 82dB@(1kHz) Fixed Positive Short Circuit Protection、Thermal shutdown、Enable control、Input under-voltage protection、Output discharge SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
TPS7A3001DGN
TSSOP8-36V, -200mA, Ultralow-Noise, Negative Linear RegulatorTexas InstrumentsUncategorised
MMZ2012Y152B
08050805 Ferrite Beads ROHSTDKFerrite Beads
B4B-PH-K
UncategorisedJST
README
README.md8ch_currentsource_jlc_v3
Second attempt to make an 8 channel current bias board.
Change from v2
- Added a voltage regulator for each channel
Parts
237| Qty | Value | Footprint | References |
|---|---|---|---|
| 37 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C10, C11, C12, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24, C25, C26, C27 +21 |
| 20 | 1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C1, C2, C4, C6, C47, C49, C53, C55, C59, C61, C65, C67, C71, C73, C77, C79 +4 |
| 17 | Polyfuse | Fuse:Fuse_0603_1608Metric_Pad1.05x0.95mm_HandSolder | F1, F2, F3, F4, F5, F6, F7, F8, F10, F11, F12, F13, F14, F15, F16, F17 +1 |
| 16 | 10nF 50V X7R 0603 | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C5, C13, C48, C50, C54, C56, C60, C62, C66, C68, C72, C74, C78, C80, C84, C86 |
| 16 | 10uF X5R 0805 | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C3, C14, C46, C51, C52, C57, C58, C63, C64, C69, C70, C75, C76, C81, C82, C87 |
| 16 | MMZ2012Y152B | Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12, L13, L14, L15, L16 |
| 10 | 1k | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R3, R6, R9, R14, R15, R16, R19, R22, R25, R28 |
| 9 | LP5907MFX-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U1, U3, U5, U7, U9, U11, U13, U15, U17 |
| 9 | OPA376xxDBVR | Package_TO_SOT_SMD:SOT-23-5 | IC2, IC3, IC5, IC7, IC9, IC11, IC13, IC15, IC17 |
| 8 | 10 0.1% | Resistor_SMD:R_0805_2012Metric | R4, R7, R10, R17, R20, R23, R26, R29 |
| 8 | 1k 0.1% | Resistor_SMD:R_0805_2012Metric | R5, R8, R11, R18, R21, R24, R27, R30 |
| 8 | 20K | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R12, R33, R35, R37, R39, R41, R43, R45 |
| 8 | 35.7K | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R13, R34, R36, R38, R40, R42, R44, R46 |
| 8 | Conn_Coaxial | 0my_footprints:RF_SMA_RA_PCB | J1, J2, J3, J4, J5, J6, J7, J8 |
| 8 | INA132UA | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | IC1, IC4, IC6, IC8, IC10, IC12, IC14, IC16 |
| 8 | PMBT3946VPN,115 | Package_TO_SOT_SMD:SOT-363_SC-70-6 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 |
| 8 | SolderJumper_3_Open | Jumper:SolderJumper-3_P1.3mm_Open_Pad1.0x1.5mm | JP1, JP2, JP3, JP4, JP5, JP6, JP7, JP8 |
| 8 | TPS7A3001 | Package_SO:MSOP-8-1EP_3x3mm_P0.65mm_EP1.68x1.88mm | U2, U4, U6, U8, U10, U12, U14, U16 |
| 4 | MountingHole_Pad | 0my_footprints:MountingHole_3.2mm_M3_Pad_Via | H1, H2, H3, H4 |
| 2 | 10K | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R31, R32 |
| 2 | 2 | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R1, R2 |
| 2 | BLM18PG181SN1D | Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB1, FB2 |
| 2 | JST S2B-PH-SM4 | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J10, J11 |
| 1 | AD5675RBRUZ | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | IC18 |
| 1 | B4B-PH-K | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | J9 |
| 1 | ISO1541DR | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | IC19 |
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Questions
How big is the 8ch v3 PCB?
It measures 90 × 100 mm and has 4 copper layers, 1.6 mm thick.
What parts does the 8ch v3 use?
237 parts, built around the INA132UA, AD5675RBRUZ, LP5907MFX-3.3 and TPS7A3001DGN. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the 8ch v3 KiCad files?
From the saewoonam/8ch_currentsource_jlc_v3 repository on GitHub, at the commit this page was made from: the board is 8ch_v3.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the 8ch v3 design in my own project?
Its repository states no licence, so its author keeps all rights: ask saewoonam before reusing the design.