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I am building a board that needs a compact mixed-signal section dedicated to high-accuracy data conversion. The job is to design the entire ADC/DAC front-end, marrying the sensitive analog path with the supporting digital logic so the output is ready to drop straight onto my main PCB. What I need from you • A complete schematic showing the analog input stage, the chosen ADC and DAC devices, reference circuitry, clocking, and the glue logic that links everything to an MCU or FPGA header. • Component selection with justification, balancing performance, availability, and cost. • Simulations that verify noise, linearity, and timing (SPICE, LTspice, or similar). • A clean, well-annotated PCB layout file (Altium, KiCad, or Eagle—your choice, just tell me up front) plus Gerbers ready for fabrication. • A BOM with manufacturer part numbers and at least one in-stock supplier for every line item. Acceptance criteria 1. Static and dynamic performance of the ADC path meets the datasheet numbers within ±5 %. 2. DAC output integral non-linearity ≤ 2 LSB across temperature 0–70 °C. 3. Power-on sequence and digital interface are demonstrated in simulation or bench test to run error-free at 3.3 V logic. 4. All design files open without errors in the declared CAD tool. If you have experience threading analog precision and digital convenience together—especially around modern SAR or delta-sigma converters and low-dropout references—this will be a straightforward engagement. I’ll be responsive for quick turnarounds on questions and reviews so we can iterate rapidly to final release.
Project ID: 40572672
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11 freelancers are bidding on average ₹2,250 INR for this job

Are you looking for someone wo can design a Mixed-Signal ADC/DAC Circuit and PCB for you? Ive got your back! Hi, I am Zain. I can easily handle the task including • Embedded Systems • Circuit Design • PCB Design • KiCAD / Altium • Mixed Signal PCB Designs / High Frequency PCB Designs • Firmware Development • C / C++ • Simulations etc. Lets chat. Best regards
₹5,000 INR in 4 days
4.1
4.1

Hi, I can help design the compact mixed-signal ADC/DAC front-end with schematic, component selection, reference circuitry, digital interface planning, simulation support, PCB layout, Gerbers, and BOM. The best solution is to first confirm the required ADC/DAC resolution, sampling rate, input/output voltage ranges, MCU/FPGA interface, power rails, board size, noise target, and preferred CAD tool. Then I’ll prepare the analog input stage, ADC/DAC selection, voltage reference, clocking, level/interface logic, PCB layout guidelines, and fabrication-ready files. I’m comfortable with mixed-signal circuit design, SAR/delta-sigma ADCs, DAC output stages, low-noise references, analog filtering, 3.3V digital interfaces, PCB layout, LTspice simulation, KiCad/Altium workflows, Gerber preparation, and BOM creation. Deliverables will include: * Complete schematic * ADC/DAC component selection * Reference and clocking circuit * MCU/FPGA interface logic * Noise/timing simulation support * Annotated PCB layout * Gerber files * BOM with part numbers * Supplier availability notes * Design documentation I’ll focus on clean analog/digital separation, stable reference design, practical component choices, and fabrication-ready files that can be reviewed and integrated into your main PCB. Best regards Ankit
₹1,500 INR in 1 day
3.6
3.6

Hi I can design the complete high-accuracy ADC/DAC front-end, including component selection, reference and clock circuitry, MCU/FPGA interface logic, verified SPICE simulations, and a clean, fabrication-ready PCB layout in KiCad with Gerbers, BOM, and sourcing details. I have experience with precision SAR and delta-sigma converters, low-noise references, mixed-signal grounding, power sequencing, and 3.3 V digital interfaces, and I will ensure the design meets your stated linearity, noise, timing, temperature, and file-compatibility requirements.
₹1,500 INR in 3 days
3.3
3.3

Hello, I am an Electronics and PCB Design Engineer with experience designing mixed-signal circuits, embedded hardware, and production-ready PCBs using EasyEDA and KiCad. I have worked on projects involving precision analog interfaces, power management, STM32-based systems, sensor integration, and high-speed digital interfaces. I pay close attention to design reviews, documentation, ERC/DRC validation, and fabrication readiness to ensure a reliable final design. I am responsive throughout the project and happy to iterate based on your feedback until the design meets your requirements. Before starting, I would like to confirm the target ADC/DAC resolution, sampling rate, analog input range, interface (SPI/I²C), preferred CAD tool, PCB size constraints, and any specific performance requirements. I look forward to discussing your project. Best regards, Greeshma Modem, PCB Design | Embedded Systems | Mixed-Signal Hardware Design
₹5,000 INR in 4 days
2.3
2.3

I have strong experience designing mixed-signal ADC/DAC front-ends with precision analog input stages, reference circuitry, clocking, and MCU/FPGA digital interfaces. I will select appropriate SAR or delta-sigma converters and DAC devices with justified component choices, design the complete schematic, run LTspice simulations verifying noise, linearity, and timing, and deliver a clean KiCad PCB layout with Gerbers and a fully sourced BOM. All acceptance criteria — ADC accuracy within ±5%, DAC INL ≤2 LSB, and error-free 3.3V interface — will be addressed in simulation and design documentation. Please share your resolution, sampling rate, and interface requirements to confirm component selection. Best regards, Engr. Muhammad Uzair
₹1,500 INR in 7 days
1.0
1.0

With over 15 years of experience in Electrical Engineering and Electronics, I am confident in my ability to take on your project. Having completed over 100 projects with a 4.9 rating, including a number of mixed-signal circuit designs, I have the skills and expertise necessary to efficiently and effectively complete your task. My extensive knowledge around SAR and delta-sigma converters combined with my proficiency in SPICE and other simulation tools will ensure that the analog path performs optimally, meeting datasheet numbers well within the specified parameters. I also have a strong command over PCB designing using tools like Altium, KiCad and Eagle as mentioned in the project description. Therefore,, I can provide you not only with an intricately designed PCB layout but also Gerber files ready for fabrication
₹5,050 INR in 7 days
0.0
0.0

Hi, I can design the complete mixed-signal ADC/DAC section, from the precision analog front-end to the digital interface, ensuring it's ready to integrate with your main PCB. I'll provide the schematic, simulations, PCB layout, Gerbers, and a fully sourced BOM while keeping performance aligned with your acceptance criteria. I have experience designing precision analog circuits, selecting suitable SAR/delta-sigma converters, low-noise references, and creating mixed-signal PCB layouts with careful attention to grounding, noise, and signal integrity. One quick question: do you already have a preferred MCU/FPGA interface (SPI, I²C, or parallel), or would you like me to recommend the best ADC/DAC combination based on your accuracy and speed requirements?
₹1,000 INR in 7 days
0.0
0.0

Hello, I am interested in your ADC/DAC mixed-signal design project. I have 1.5 years of experience in Embedded Systems, Electronics, and PCB Design with hands-on experience using KiCad and microcontroller-based hardware development. I can assist in designing a clean and reliable analog front-end with careful component selection, PCB layout, and proper analog-digital isolation. I focus on signal integrity, grounding, power distribution, and manufacturable PCB layouts. I will provide the complete schematic, PCB layout, Gerber files, BOM, and editable source files, ensuring the design is well documented and easy to integrate with your main board. I maintain clear communication throughout the project, welcome design reviews, and am committed to delivering quality work within the agreed timeline. I look forward to discussing your requirements and contributing to your project. Best Regards, Kethavath Kalyani Embedded Systems & PCB Design Engineer Suggested Bid Amount: ₹1,200 INR Delivery: 5–7 Days
₹1,050 INR in 7 days
0.0
0.0

Hello, Your project caught my attention because it combines precision analog design with PCB implementation—an area I genuinely enjoy working in. I'm currently developing a KiCad-based mixed-signal IoT PCB centered around the Nordic nRF9151, where signal integrity, power distribution, component placement, and production-ready PCB design are key priorities. For your project, I can deliver a complete KiCad design including the analog front-end, ADC/DAC integration, reference circuitry, clocking, digital interface to an MCU/FPGA header, and a PCB layout optimized for low noise and mixed-signal performance. I also perform SPICE/LTspice simulations to validate circuit behavior and generate manufacturing-ready Gerbers, BOMs, and documentation. I pay close attention to analog and digital separation, return current paths, decoupling strategy, grounding, and layout practices that help maximize converter performance. I'd be happy to discuss your preferred ADC/DAC family, target sampling rate, resolution, and interface requirements before starting so the design meets your performance goals. I look forward to the opportunity to work with you. Best regards, Fahad Ahmed Electronics Engineer | KiCad PCB Design | Analog Electronics | Embedded Systems | Simulation
₹1,050 INR in 3 days
0.0
0.0

Hi, I've reviewed your requirements and have hands-on experience threading analog precision with digital convenience — particularly with SAR and delta-sigma ADCs paired with low-dropout references, so this aligns well with my background. Approach: Analog front-end: proper input buffering/anti-aliasing, gain staging sized to your signal range. ADC/DAC selection: balancing resolution, speed, availability and cost, with justification documented per part. Reference circuitry: low-drift, low-noise references matched to your accuracy target. Clocking: clean, low-jitter clock distribution to preserve SNR/ENOB. Digital glue logic: level-shifted, timed interface to your MCU/FPGA header. Simulation: SPICE/LTspice verification of noise, linearity, and timing before layout. PCB layout: clean, well-annotated, fab-ready with Gerbers in your preferred CAD tool. BOM: manufacturer part numbers with at least one in-stock supplier per line item. I'll validate against your acceptance criteria — ±5% ADC performance match, ≤2 LSB DAC INL across 0-70°C, clean 3.3V power-on/interface behavior, and error-free files in your declared tool. Quick question before I finalize scope: do you need just the schematic + simulation deliverables, or the full fabrication-ready package (PCB layout + Gerbers + BOM) as listed? This affects timeline/pricing accuracy. Ready to start immediately and iterate quickly with you to final release.
₹1,050 INR in 3 days
0.0
0.0

Hi there, nice to meet you. Your project is a strong match for my experience in precision mixed-signal PCB design, ADC/DAC interfaces, low-noise analog front ends, and digital integration. I can develop a compact conversion module that combines accurate acquisition, stable reference circuitry, clean clocking, and a reliable 3.3 V MCU/FPGA interface. I would select the ADC, DAC, amplifiers, voltage reference, clock, and interface logic based on your bandwidth, resolution, channel count, and latency targets. The design will use low-noise power rails, careful grounding, short return paths, controlled digital routing, and simulation of noise, settling, linearity, and timing before layout release. SYSTEM ARCHITECTURE – Define conversion, reference, clock, power, and interface requirements. PRECISION SCHEMATIC – Design the analog input, ADC/DAC, reference, filtering, and glue logic. SIMULATION – Validate noise, linearity, settling, power-up, and digital timing. PCB LAYOUT – Create a compact mixed-signal board with clean analog/digital partitioning. PRODUCTION PACKAGE – Deliver native CAD, Gerbers, BOM, calculations, and design notes. I can manage the complete workflow from component selection through simulation, layout, and fabrication-ready handover. I am ready to discuss the required resolution, sample rate, input range, output range, and preferred CAD tool.
₹1,050 INR in 7 days
0.0
0.0

New Delhi, India
Member since Jul 10, 2026
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