Precision Analogue Engineering
Analogue circuit design is the engineering of circuits that process continuous real-world signals, such as sensor front-ends, amplifiers, filters, ADC/DAC interfaces, RF chains and power regulation, so they stay accurate and low-noise. Hire PCB Designer delivers analogue, mixed-signal and RF design with signal-integrity and noise analysis.
Core capabilities
RF subsystems
Microwave and millimetre-wave design: impedance matching, antenna array synthesis and ultra-low-noise amplifier (LNA) topologies.
- S-parameters
- Smith charting
Mixed-signal
High-resolution ADC/DAC interfacing and precision signal conditioning that bridges analogue sensors and digital processing cores.
- ADC / DAC interfacing
- Anti-aliasing
Power architecture
Low-dropout (LDO) regulators, switching converters and PMIC integration for clean, stable power delivery with minimal EMI.
- Thermal analysis
- EMI control
What analogue design includes
Typical deliverables on an analogue, mixed-signal or RF project. The exact scope is confirmed when we review your requirements.
Circuit architecture and schematics
Analogue, mixed-signal or RF circuit topology documented as manufacturable schematics.
Signal-integrity and noise analysis
Analysis of noise, bandwidth and signal-integrity risks so problems are found before boards are built.
Component selection
Amplifiers, converters, references, regulators and passives chosen against your accuracy, noise and power targets.
Layout guidance
Grounding, partitioning, controlled-impedance routing and power-delivery rules handed to PCB layout, or applied directly if we also do the layout.
Typical analogue design process
Capture specifications
We define signal ranges, bandwidth, accuracy, noise budget, frequency range and power constraints.
Select topology and components
We choose an architecture and parts that can meet those targets with margin.
Analyse and simulate
Noise, stability, signal integrity and, for RF, matching and S-parameter behaviour are analysed before layout.
Schematic and layout
The design is captured as schematics and carried into PCB layout with the grounding and routing rules it needs.
Prototype review
Measured results from the first boards are compared with the targets and the design is refined where needed.
Methods and design practices
- RF analysis
- S-parameters and Smith charts for matching, return loss and gain across the operating band.
- Controlled impedance
- Matched transmission lines (commonly 50 ohm single-ended) for RF and high-speed signal paths.
- Signal conditioning
- Amplification, filtering and anti-aliasing ahead of ADCs; reconstruction filtering after DACs.
- Power and EMI
- LDO, switching-converter and PMIC design with attention to ripple, thermal limits and electromagnetic interference.
Analogue design FAQ
What is analogue circuit design?
Analogue circuit design is the engineering of circuits that handle continuous real-world signals such as sensor outputs, audio, radio and power rails. It covers amplifiers, filters, references, regulators and signal conditioning, with the goal of keeping accuracy high and noise low. Hire PCB Designer provides analogue design as a standalone service or alongside schematic capture and PCB layout.
What is mixed-signal design?
Mixed-signal design combines analogue and digital circuitry on the same product, for example a sensor front-end feeding an ADC that connects to a microcontroller. The challenge is keeping fast digital switching noise out of sensitive analogue paths. We handle ADC/DAC interfacing, signal conditioning, anti-aliasing and the grounding and layout decisions that protect measurement accuracy.
Do you design RF circuits?
Yes. Our RF work includes impedance matching, antenna design, low-noise amplifier (LNA) topologies and analysis with S-parameters and Smith charts, for microwave and millimetre-wave applications. RF performance depends heavily on layout, so we coordinate the circuit design with controlled-impedance PCB routing rather than treating them as separate steps.
How do you reduce noise in analogue circuits?
Noise is addressed at several levels: choosing low-noise components, filtering and anti-aliasing at the right points, clean and well-regulated power delivery, careful grounding, and separating sensitive analogue paths from fast digital switching. We analyse the noise and signal-integrity budget early, because fixing it after boards are built is far more expensive.
Can analogue design be combined with PCB layout and firmware?
Yes. Analogue performance is largely decided by PCB layout, and the ADC, DAC and sensor interfaces also need matching firmware. Because Hire PCB Designer offers analogue design, PCB layout and embedded firmware under one roof, the circuit, the board and the code that drives it can be developed together.
How much does analogue or RF design cost?
Cost depends on the complexity of the circuit, the performance targets such as noise, bandwidth and frequency range, and how much analysis and validation is needed. We do not publish a flat price. Send your requirements through the contact page and we will review them and provide a quote based on the actual scope.
Related services
Schematic Capture
Requirements translated into hierarchical, manufacturable schematics in Altium Designer.
PCB Design & Layout
High-speed, multilayer, rigid-flex and HDI PCB layout with impedance control and DFM/DFA review.
Firmware Development
Bare-metal and RTOS embedded firmware for latency-critical and IoT devices.
Discuss your analogue or RF design
Tell us your signal, noise and power targets and we will review them and come back with a scoped quote.