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Core hardware

Analog & Mixed-Signal Electronics Design

Precision analog, mixed-signal and power circuit design for sensor front ends, power stages and battery systems, delivered as schematics, analysis reports and a BOM with alternates.

Quick answer

What we build
Circuit-level electronics design: precision and low-noise analog, high-speed digital, mixed-signal and power electronics, including sensor signal conditioning, power supplies and battery management.
Who it is for
Teams with a demanding circuit, such as a sensor front end, a power stage or a mixed-signal board, that needs specialist design and analysis.
Typical timeline
4–12 weeks
Typical cost
Quoted per project as a fixed-scope proposal. For typical ranges, see our hardware development cost benchmarks.
Designed to
IEC 60601-1, IEC 61000, DO-160 and UL/CSA requirements, as the product needs, with medical design documentation structured for the manufacturer's ISO 13485 quality system.

Every project is quoted as a fixed-scope proposal within 3–5 business days of a discovery call. Discuss your product

Specifications

  • Precision analog
  • High-speed digital
  • Mixed-signal
  • Power electronics

Capabilities

What we deliver

Precision analog circuit design

Specialized design of high-precision analog circuits including instrumentation amplifiers, sensor interfaces, and signal conditioning with ultra-low noise, high stability, and exceptional linearity for demanding applications.

Complex mixed-signal systems

Expert integration of analog and digital domains with careful attention to data conversion, signal integrity, ground loops, and noise isolation for optimal system performance in challenging environments.

Power electronics & management

Advanced power supply design including linear/switching regulators, battery management systems, energy harvesting, and power monitoring with emphasis on efficiency, thermal management, and reliability.

EMC/EMI design & compliance

EMC design practice aimed at IEC 61000/CISPR 32 and FCC Part 15 limits: controlled impedance routing, filtering, shielding and grounding, verified by pre-compliance scans before formal testing.

High-precision measurement

24-bit sigma-delta ADC front ends with low-drift references, chopper-stabilized and auto-zero amplifiers; accuracy is budgeted and calibrated per application (typically 0.01–0.1 %).

Advanced design verification

Comprehensive circuit simulation and verification using LTspice, MATLAB, and ANSYS to validate performance across process variations, temperature extremes, and aging effects before prototyping.

2 more capabilities

Low-power & battery systems

Specialized design techniques for battery-powered and energy-harvesting applications with ultra-low power consumption, sleep modes, and power sequencing to maximize runtime and reliability.

Thermal management solutions

Advanced thermal analysis and design optimization using computational fluid dynamics (CFD) simulation to ensure reliable operation across extreme temperature ranges and environmental conditions.

Capabilities and deliverables

Design expertise

  • High-performance microcontroller & processor integration
  • Specialized sensor interfacing & signal conditioning
  • Noise analysis & optimization techniques
  • RF circuit design from sub-GHz to about 8 GHz
  • Designs prepared for IEC, MIL-STD-461/810 and DO-160 test campaigns

Deliverables

  • Comprehensive design documentation & specifications
  • Circuit schematics & detailed BOM with alternates
  • Performance analysis & verification reports
  • Regulatory compliance guidelines & test plans
  • Manufacturing & testing documentation

Process

How we work

  1. Requirements and planning

    Analyse the requirements, check technical feasibility and component availability, and agree the milestones.

    Deliverable: Technical requirements document, project milestones and risk assessment

  2. Design and architecture

    Detailed system design and component selection, with design review, signal-integrity and power analysis.

    Deliverable: System architecture, schematic, PCB layout and firmware architecture

  3. Implementation

    Prototype hardware fabrication and firmware development, with code reviews and hardware verification.

    Deliverable: Prototype hardware, firmware codebase, test procedures and documentation

  4. Validation and testing

    Functional, environmental and regulatory testing against the requirements.

    Deliverable: Test results report, compliance documentation and release package

Planning

Scope and cost

Start with a non-confidential summary of your product and the milestone you need to reach next.

Planning guides

Hardware Product Development Roadmap

Idea to mass production in six stages — feasibility, prototype, EVT, DVT, PVT and ramp — with durations, cost ranges, founder decisions, IP terms and pilot runs.

Power Electronics Development Guide

BMS, GaN/SiC DC-DC for 48 V to 800 V, EV chargers (IEC 61851, OCPP) and motor control: stages, test equipment, standards, costs and timelines.

PCB Design Cost Guide

PCB design pricing broken down by layer count, complexity, signal speed and turnaround — so you know what to expect before you quote.

Proof

Related case studies

Automated Nitric Oxide Therapy System

Connected iNO Delivery for NICU Patients

Medical equipment manufacturer, India

Class C Firmware Design
IEC 62304
Dosing Accuracy (or ±0.5 ppm, whichever is greater)
±10%
Design target
Lower Device Cost vs Imported iNO Systems (BOM estimate)
60%
Design target
8 more case studies
Review all case studies

FAQ

Frequently asked questions

Working with Rapid Circuitry

How much does a project cost, and how is pricing structured?

Each project is quoted as a fixed-scope proposal: a statement of work with milestones, deliverables and pricing, sent within 3–5 business days of the discovery call. The price depends on the requirements, how mature the design is, technical complexity, the number of prototype iterations and the validation scope. Longer engagements can also run as a retainer or a hybrid of both. For budgeting before you contact us, our hardware development cost benchmarks and the PCB design, firmware and IoT cost guides give indicative ranges with their assumptions stated. They are planning ranges, not quotes.

How long does a project take?

It depends on the scope and on what already exists when we start. As planning ranges from our cost benchmarks: a single PCB layout takes 2–6 weeks per board and embedded firmware 4–16 weeks. A connected (IoT) product takes 3–12 months from concept to a production-ready design, and a regulated medical device 12–24 months to a 510(k) submission-ready package; from idea to mass production, a typical connected product takes 9–18 months. The proposal sets out a dated milestone plan, and you receive weekly progress updates during the project.

Who owns the intellectual property?

You do. Our contracts assign the intellectual property in the project work product (schematics, PCB design files, firmware source code and documentation) to you on payment, and we hand over the source files, not only fabrication outputs or compiled binaries. The exact terms are set out in the signed agreement for each engagement.

Do you sign NDAs?

Yes. We sign a mutual NDA before any technical discussion of your project. Send your standard NDA or use ours; we return it signed within one business day.

Can you work with clients in the US, Europe and Japan?

Yes. We are based in Hyderabad, India, and work with product teams in India, the United States, the United Kingdom, Germany, Japan, Australia, the Middle East and other markets. Our office hours are 10:30–19:00 India Standard Time (UTC+5:30), Monday to Saturday, and we schedule design reviews across time zones, typically from US Pacific to Central European time. Japan is 3.5 hours ahead of India, so our first four hours overlap the Japanese afternoon. Prototypes and documentation ship by international courier such as DHL or FedEx. Our hardware outsourcing guide covers what to agree before an international project starts.

Do you hand off to manufacturing, and which contract manufacturers do you work with?

Yes. We prepare the manufacturing release package — fabrication and assembly drawings, the BOM with approved manufacturers, programming files and test specifications — and hand it over to the contract manufacturer (EMS) you choose. If you have not chosen one, we help you evaluate candidates through technical capability assessments and a pilot build. See manufacturing support.

Are you ISO 9001 or ISO 13485 certified?

No. Rapid Circuitry does not hold ISO 9001, ISO 13485 or other certificates. Our processes are aligned with ISO 9001:2015, and we design products to the requirements of the standards that apply to them — for example IEC 60601-1 and IEC 62304 for medical devices (with design documentation structured so your ISO 13485 quality system can absorb it) and IEC 61000 for EMC — and we specify IPC-A-610 workmanship classes for assembly. We prepare the product and its documentation for certification testing at accredited laboratories; the certificate or approval is issued for your product by the laboratory, notified body or regulator.

What do you need from me to start?

A short, non-confidential description of the product and what it must do (sensors, connectivity, on-device processing), the target production volume and unit cost, the markets and regulations it must meet (for example FDA, CE or FCC), your timeline, and what already exists: a concept, a proof of concept, schematics, PCB files or firmware. After the NDA, the next step is a 30-minute discovery call with the engineers who would work on the project, followed by the fixed-scope proposal. Send a project brief to begin.

Explore

PCB design

Schematic capture and layout up to 24 layers, including HDI, rigid-flex, RF and high-speed boards, with a DFM-checked fabrication package.

Embedded hardware development

System architecture, MCU/SoC selection, schematic and PCB design, board bring-up, validation and manufacturing handoff.

RF design

Antennas and RF front ends from sub-GHz to about 8 GHz, integrated and pre-scanned before radio certification.