SFH203 photodetector
About the SFH203 photodetector PCB
SFH203 photodetector is an open source PCB design by TU-Darmstadt-APQ, published on GitHub under the CERN-OHL-1.2 license. It is a 2-layer board measuring 20 × 30 mm, with 18 components from 13 distinct parts.
Other key parts include the ADA4898-2YRDZ and LT3032EDE-12#PBF. By type, the board carries 9 capacitors, 4 resistors, 2 ICs, 2 connectors and 1 diode.
It belongs with the audio designs in this gallery.
From the project
Low-noise transimpedance amplifier optimized for the photodiode SFH203.
SFH203 Photodetector =================== This repository contains the KiCad design files for a low-noise photodetector. The detector consists of a standard silicon photodiode (Osram SFH203) in combination with a two-stage low-noise transimpedance amplifier. The PCB is fitted in a small outline case also provided in this repository.
- TIA-gain: 50 kΩ - Sensitivity: 31 V/mW at 800 nm (29 V/mW at 850 nm for SFH203-FA) - Max. output voltage: 10 V - Small-signal bandwidth: 8 MHz (rise time: 42 ns) - Max. slew rate: 50 V/µs - Input referred noise: <3 pA/√Hz (NEP: 5 pW/√Hz at 800 nm) - Power…
Main components on the SFH203 photodetector
SFH203 photodetector bill of materials (BOM)
18 components, 13 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ADA4898-2YRDZ ADA4898-2 | SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.81mm | U1 |
| 1 | LT3032EDE-12#PBF LT3032-12 | Linear_DE14MA | U2 |
| 1 | S3B-PH-K-S(LF)(SN) V- GND V+ | JST_PH_S3B-PH-K_1x03_P2.00mm_Horizontal | J1 |
| 1 | 73251-2122 Signal out | SMA_Molex_73251-2120_EdgeMount_Horizontal_mod | J4 |
| 1 | SFH203-FA SFH2030 | PhotoDiode_SFH2030 | D1 |
| 4 | CC1210ZKY5V9BB106 10u | C_1210_3225Metric | C1, C2, C8, C9 |
| 1 | 0603N2R0C500CT 2p | C_0603_1608Metric | C3 |
| 2 | 885012206071 100n | C_0603_1608Metric | C4, C5 |
| 2 | GRM1885C1H103JA01D 10n | C_0603_1608Metric | C6, C7 |
| 1 | RT0603FRE0710KL 10k | R_0603_1608Metric | R1 |
| 1 | RC0603FR-07300RL 300 | R_0603_1608Metric | R2 |
| 1 | RT0603FRE071K2L 1.2k | R_0603_1608Metric | R3 |
| 1 | RT1206FRE0749R9L 49.9 | R_1206_3216Metric | R4 |
SFH203 photodetector design files
The KiCad project lives in the TU-Darmstadt-APQ/SFH203_photodetector repository on GitHub; these links point at the commit this page was built from.
SFH203 photodetector: common questions
How big is the SFH203 photodetector PCB?
The SFH203 photodetector measures 20 × 30 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the SFH203 photodetector?
18 components, from 13 distinct parts. The full bill of materials is listed on this page.
Where can I download the SFH203 photodetector design files?
From the TU-Darmstadt-APQ/SFH203_photodetector repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the SFH203 photodetector design in my own project?
Yes, under the terms of its CERN-OHL-1.2 license, which TU-Darmstadt-APQ chose for the repository.
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