ADC PCB design for precise magnetic sensors

$400-1000 USD

Completed

Posted

8 months ago

$400-1000 USD

Paid on delivery

Project description: Design a Schematic + PCB layout in Altium Designer (license can be provided) of a module containing: 1. wide input voltage ADC (+-10V) 2. positive&negative 15V voltage supply for precise magnetic field sensor 3. Positive 15V supply for precise magnetic field sensor 4. 2x mezzanine connectors for embedded module (library will be provided to the engineer). SPI ports from ADC, etc. will have to be connected to those mezzanine connectors. 5. 5V out low noise power supply for the embedded system (300mA average output current with 1A peak), 24V in. Routed to mezzanine connector. Design requirements: 1. PCB: - max 4 layers - 1.2mm FR4 - gold plated or HASL with lead - passive component size 0402 or bigger - dimesnions as small as possible, a dxf shape will be proposed - 6mil min. distances and tracks - 0.3mm min. drills - all power supply and ADC components should be on one side of the PCB and the embedded module will be on the other. 2. Schematic - hierarchical design - every component should have a 3D model - every passive component should have an exact product number (instead of just a value) - all components should be rated AEC-Q200 - all capacitors should have flex termination - usage of EMI reducing components like ferrite beads, fliter and common mode chokes is welcome - external connections should be ESD protected - all parts should be available at: [login to view URL], [login to view URL] or [login to view URL] 3. ADCs: - minimum 16bits, preffered 24 bits - +-10V Differential input - at least 4 differential channels should be routed to JST-PA series horizontal SMD connectors - at least 80Hz of sampling rate - SPI interface - high input impedance - if possible an external temperature calibrated voltage reference should be used (if it will provide better performance than the internal one) - maybe AD4116/AD7734 could be used? 4. Power supplies: - as low noise as possible (it will affect magnetic field measurements) 5. Additional notes: - voltage supply for the whole board = 24V DC - if possible all voltage converters should work with up to 36V input - embedded module library with mezzanine connectors will be provided to the winning engineer Magnetic sensors: - Geometrics MFAM (9-16 DCIN, SPI interface) - Sensys FGM3D +-100uT (+-15V DC IN, analog output +-10V)

Circuit Design

Electrical Engineering

Electronics

PCB Layout

Project ID: 37193074

About the project

9 proposals

Remote project

Active 8 mos ago

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Awarded to:

@Javiergg88

Hi, I am a Hardware Engineer with more than 5 years of experice in the whole production cycle of prototypes, from designing schematics and PCB to fabrication and validation. I consider myself a good candidate for this projects, as i have mixed signal design experience. I have been working with Altium Designer (i own a licence) all along my professional carrer. From your description i guarantee the compliance of aspects 1 and 2. Your PCB and schematics requirements are very clear. Making a brief resume of what i understand, you need to read, at least, 4 analog inputs from sensor FGM3D with a signal swing of +-10V (i understand the outputs are not differential ). These inputs will be connected through a JST connector and to an ADC ( AD7734 seems a good choice) to communicate with a uc based module though SPI. Another sensor will be connected through SPI. Power rails for the module, sensors and ADC must be implemented from a 24V to 36V DC in, assuring low noise for sensible components. I can have this design from 10 to 15 days, keeping a constant communication with you, in case needed. Hope you consider my offer and work together. Best regards.

$550 USD in 10 days

4.9

(8 reviews)

4.2

9 freelancers are bidding on average $671 USD for this job

@kingch91

Hi, I have checked and understood your project requirements. We are a team of Electronics Engineers with a multitude of skills in Electronics/Electrical Design Solutions. We have expertise in Circuit schematic designs, simulations, and PCB layout designs. We are qualified enough to design the circuits using Altium Designer and build them to test the desired output and whether it matches the requirements. We will provide remote support until the product is ready. Looking forward to seeing you in the chat to discuss further details. Thank you.

$700 USD in 10 days

4.9

(185 reviews)

6.9

@aliabidlodhi74

Hello there! My name is Muhammad Ali and I'm excited to introduce you to the services I offer as an electrical engineer and PCB designer. Specifically, I specialize in the design of PCBs, embedded system, IOT, connectivity such as wifi, Bluetooth and radio frequency RF, as well as 3D printing. I have 9 years of industrial experience in dealing with PCBs with Altium designer software. I am confident that my skillset makes me the perfect fit for your project - specifically with respect to the design of a PCB layout for a magnetic field sensor module that requires precise voltage adjustments (up to +-10V) along with ±15V supplies for accurate measurements. Specifically, my expertise includes low noise power supplies with an average output current of 300mA and a peak output of 1A as well as 24V in protection routed to mezzanine connectors on the board. Additionally, my services include remote working & guidance during the project so that you don't have to worry about any aspect of the process while I am on site Regards M Ali Abid

$700 USD in 7 days

4.5

(53 reviews)

6.3

@kamilkhalid

Hello. ⭐ ⭐ ⭐ ⭐ ⭐ I have been working for more than 10 Years in the field of Electronic Engineering (Hardware / Firmware). I have extensive experience in areas including Circuit Design, Circuit Simulation (Analog, Digital), PCB design, Embedded Software(Keil, Mplab, FPGA, ESP32, Arduino, PIC, Rasberry PI, C/C++) etc. Expect me to help your business as if I am growing my own. I would love to hear from you. Warm regards Khalid

$700 USD in 7 days

5.0

(4 reviews)

4.1

@TosheStojev

Dear Client, I hope this message finds you positively charged and ready for some electrifying collaboration! I couldn't help but get a magnetic attraction to your project description. As an experienced electronics engineer with a knack for quirky designs, I am thrilled to offer my services for your ADC PCB design needs. Rest assured, I fully understand the importance of precision when it comes to magnetic sensors. I will meticulously design a schematic and PCB layout in Altium Designer, ensuring that all your requirements are met. From the wide input voltage ADC to the mezzanine connectors and low-noise power supply, I will make sure every component is perfectly integrated, like a well-choreographed dance of electrons. Speaking of electrons, I'll ensure that all tracks and distances on the PCB are as minuscule as possible, making them feel like they're on a tightrope. And fear not, I won't leave any component feeling lonely - each one will have its own 3D model and a fancy product number to show off. To keep things shockingly good, I'll use only AEC-Q200 rated components and sprinkle some EMI reducing components like ferrite beads and common mode chokes for that extra touch of electromagnetic charm. Let's not forget about the ADCs! I'll make sure they have the right bits, the right channels, and even throw in an external temperature calibrated voltage reference if it'll make their performance sing. AD4116/AD7734? Consider them part of the star-studded cast. And finally, the power supplies. I promise to keep them as quiet as a library mouse, ensuring that your magnetic field measurements are undisturbed by any unwanted noise. So, if you're ready to embark on this electrifying adventure together, let's connect in the chat to discuss the pricing and timeline details. I can't wait to bring some spark to your project! Yours electrically,

$540 USD in 7 days

0.0

(0 reviews)

0.0

@ankurtech

Dear Sir, I gone through your requirement. I have good experience of embedded system with altium design. I am sure that i can deliver solution as per your requirement. I have experience of 6 layer designing so for sure i can deliver this solution as per your requirement. Let us discuss in more details. Looking forward for your response. thanks, Abhijeet N

$890 USD in 7 days