Ditutup

The Art and Magic of Analog Circuit Design - Picoammeter Design.

We are working on a device to save the world.

We want you to design a picoammeter circuit to fit into our electronics design.

We expect fast scheme drawing, explanation of the components selected and finally good layout of the PCB.

Technical specifications:

- max. power consumption: 100mW

- operating current range: 1pA -- 1mA both in minus and plus directions, i.e. it would measure from -100 pA to +100 pA and convert the current to the output voltage range

- output voltage range: from 0 to Vref, where Vref < 5V, ideally 4.096 V

- voltage supply: 4.7 -- 5V

- maximum error 1%, unless in the lower pA range, where the tolerated error could be +-8%

The connectors will be:

V supply (input) (+5V)

V reference (input)

V out (output)

DGND digital ground

AGND analog ground

Please post your idea, your reference project and ideally if you already worked on low current measurement circuits.

Applicants without prior work experience will be not considered.

Kemahiran: Reka Bentuk Litar, Elektronik, Instrumentasi, Susun Atur PCB

Lihat lagi: to the maximum, technical drawing work, digital art and design, circuits design, pcb design and layout, drawing and art, pcb layout design, pcb circuit, magic, Electronics Design, drawing art, digital circuit design, digital art work, design circuit, current voltage, circuit pcb, art and, analog circuit , fast pcb, power circuit

Tentang Majikan:
( 3 ulasan ) Koenigstein im Taunus, Slovakia

ID Projek: #5942656

11 pekerja bebas membida secara purata $1284 untuk pekerjaan ini

MIKY4227

Hi i can help you not problem with your design i have expertice in design special meter in pico amperes, fentom amperes and atom amperes. Please see portfolio, have a cicular pcb is for fentom amperes to RS485 i ca Lagi

$2105 USD dalam 30 hari
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5.6
pcbdcs

Hello, I have been associated with Hardware design (Circuit / Electronics design), PCB design, PCB Manufacturing, Component procurement and PCB Assembling for over 7 years. I have used various CAD/EDA tools for PCB Lagi

$1500 USD dalam 25 hari
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5.4
betaenergy

Dear Sir, We are Reserach and Development company whose working area are : -Digital Motor Control -Analog Design -Electronic Design -Power Electronics -PCB design -Embedded system -Matlab -Simulation of ha Lagi

$1555 USD dalam 30 hari
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4.8
akramkarimi1036

Hi, Experienced and Practical Microwave and RF engineer here, doing my masters research and Gold-medal in undergrad. I have firm knowledge of microwave in general especially Low noise amplifier (LNA), Power Amplifier Lagi

$1500 USD dalam 30 hari
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4.1
chandra2sekhar

Hello sir, I am [login to view URL] sekhar,[login to view URL],[phd].even though i am new to freelancer ,we have 10+years experience in this field. i can assure u quality service and quality output.i can provide u support even after comple Lagi

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3.9
jacer81

Hello, Let me introduce myself I am yasir amir khan. I am electrical engineer, running an online consultancy business, with several years of project related experience. Please check out my profile. and search my name o Lagi

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3.4
akhachat

Hello, Before the final bidding/timing... The feedback ammeter or / and integrator method can be used. More than 10 years experience in ATE (Automated Test Equipment) design, especially ASL test system for analo Lagi

$1333 USD dalam 14 hari
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3.0
dsnejko

Hi, I can't brag I did 1pA circuits, my lowest limit was 100pA for photosensing. But as a physicist in past I understand constraints. I think you front end can be done on Ti's LMP7721 as a transimpedance stage. That Lagi

$777 USD dalam 30 hari
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2.1
ElectrSoftDesign

Hello..Im Electrical-Electronics Engineer with Software Developement..I have great experience working as a Autocad,Eagle,Proteus. .NET Developer and as a ASP Developer throughout my career. I will benefit you and your Lagi

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EmbeddedEngg

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ilemdesign

Dear, Colleagues I am electronics design engineer from Latvia(EU, the Baltic sea region) with more than 10 years experience in the electronics design and manufacturing fields. I hold master degree from Riga Technical Lagi

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faizankhalid

Greetings dear freelancer, We are a private sector electronic engineering company here in Karachi Pakistan working on various electronics projects. We have successfully developed pharmaceutical temperature and humid Lagi

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