Industrial Data Acquisition System

Application

Description

Complete multi-channel data acquisition solution using 3peak's ADCs, op-amps, and interface chips for industrial monitoring applications.

Core Advantages

Complete solution from single supplier

High channel count with 16-bit resolution

Robust RS-485 communication

Industrial temperature range

Modbus protocol compatibility

Recommended Bill of Materials (BOM)

Item	Part Number	Description	Quantity	Datasheet
1	TPC1610	16-bit ADCs for analog inputs	4-8	📄 Download
2	TP1562	Dual op-amps for signal conditioning	8-16	📄 Download
3	TPT485	RS-485 transceiver for communication	1	📄 Download
4	MCU	Microcontroller for system control	1	📄 Download

Applications

Process control monitoring

Building automation systems

Environmental monitoring

Machine condition monitoring

Test and measurement systems

Energy management

Technical Specifications

Analog Channels

Up to 32

A D C Resolution

16-bit

Sample Rate

Up to 100kSPS aggregate

Input Ranges

±10V, ±5V, 0-10V, 4-20mA

Communication

RS-485, Modbus RTU

Isolation

2500Vrms channel-to-bus

Customer Success Stories

Building Automation Company

Challenge

Needed reliable multi-channel DAQ for HVAC monitoring

Solution

Implemented 16-channel DAQ using 3peak components

Results

16 temperature and pressure channels
99.9% uptime over 2 years
40% cost reduction

Process Control Manufacturer

Challenge

Multi-channel data acquisition for chemical plant monitoring

Solution

Deployed 32-channel DAQ system with 3peak ADCs

Results

32 channels at 16-bit resolution
Reliable operation in harsh environment
35% cost savings

FAE Expert Insights

Senior FAE

Applications Engineer

10+ years

Professional Insights

This industrial DAQ solution provides a cost-effective, high-performance data acquisition platform. The combination of 3peak's ADCs, op-amps, and interface chips creates a robust system for industrial applications. Key considerations: Optimized for target applications with proven reliability; Integrated design reduces BOM cost and complexity; Comprehensive technical support from FAE team; Scalable architecture supports various configurations; Complete reference design accelerates time-to-market. Common pitfalls to avoid: Inadequate channel-to-channel isolation; Insufficient anti-aliasing filtering; Poor PCB layout causing crosstalk; Inadequate power supply decoupling.

Key Takeaways

Optimized for target applications with proven reliability
Integrated design reduces BOM cost and complexity
Comprehensive technical support from FAE team
Scalable architecture supports various configurations
Complete reference design accelerates time-to-market

Decision Framework

Solution Selection Decision Framework

Steps:

Evaluate application requirements and performance metrics
Compare solution advantages considering cost and supply chain
Reference success cases and customer feedback
Consult FAE for professional recommendations

Ready to Implement This Solution?

Contact our FAE team for design support and quotes

Frequently Asked Questions

What is the maximum sample rate?

The maximum sample rate depends on channel count and ADC configuration. With TPC1610's 1MSPS capability: Single channel: Up to 1MSPS, 8 channels: Up to 100kSPS per channel, 32 channels: Up to 25kSPS per channel. The aggregate throughput is limited by the SPI interface and MCU processing speed.

1MSPS per ADC. Divide by channel count for per-channel rate.

What communication protocols are supported?

The solution supports Modbus RTU protocol over RS-485 interface. The TPT485 transceiver provides the physical layer, and the MCU implements Modbus protocol stack. Custom protocols can also be implemented. ASCII and binary Modbus modes are supported.

Modbus RTU standard. Custom protocols possible with firmware modification.

How do I handle channel-to-channel isolation?

For applications requiring channel isolation: Use isolated ADCs or signal isolators, Implement per-channel isolation amplifiers, Use differential inputs to reject common-mode noise, Consider external multiplexers with isolation. The base solution uses single-ended inputs with common reference. For high-voltage or safety-critical applications, additional isolation components are required.

Add isolation components for high-voltage or safety-critical applications. Differential inputs help reject noise.

What anti-aliasing filter is recommended?

Anti-aliasing filters are essential for preventing aliasing in sampled systems. Recommended: Second-order Sallen-Key active filter using TP1562, Cutoff frequency at 1/10 of per-channel sample rate, Butterworth response for flat passband. Example: For 100kSPS per channel, set cutoff at 10kHz. The filter removes high-frequency content that could alias into the signal band.

Use 2nd-order active filter. Set cutoff at 1/10 of sample rate. TP1562 excellent for active filters.

How many nodes can be on the RS-485 network?

The TPT485 features 1/8 unit load, allowing up to 256 nodes on a single RS-485 bus segment. For larger networks, use repeaters to create additional segments. Each repeater can support another 256 nodes. Total network size is limited by cable capacitance and propagation delay. For reliable operation, keep total bus length under 1200m at lower data rates.

256 nodes per segment with TPT485. Use repeaters for larger networks.