ACM5320
Complete RTD signal conditioner with excitation, lead wire compensation, and linearization for Pt100/Pt1000.
Product Overview
Description
The ACM5320 is a complete signal conditioning solution for RTD temperature sensors.
The device integrates programmable excitation current, lead wire compensation for 2/3/4-wire RTDs, and automatic linearization.
Ratiometric measurement architecture eliminates errors from excitation current variations, providing accurate temperature measurement.
Product Series
ACM
Primary Application
Industrial temperature control
Key Features
- Complete RTD conditioning
- 2/3/4-wire support
- Automatic linearization
- Ratiometric measurement
- Open/short detection
Specifications
| RTD Types | Pt100, Pt1000 |
|---|---|
| Excitation Current | 100μA, 200μA |
| Wire Configuration | 2, 3, 4-wire |
| Accuracy | ±0.1°C |
| Temperature Range | -200°C to +850°C |
| Supply Voltage | 3.3V to 5V |
| Package | TSSOP-16 |
Applications
Industrial temperature control
Industrial automation and control
HVAC systems
Electronic system design
Process monitoring
Electronic system design
Medical equipment
Medical electronics
FAE Expert Insights
"The ACM5320 is my go-to solution for RTD conditioning. It eliminates the need for external excitation circuits and linearization lookup tables. The ratiometric measurement is key - it cancels out excitation current drift. I've used this in many industrial temperature control systems with excellent results."
Complete integrated solution simplifies RTD measurement design
— Sarah Johnson, BeiLuo
Frequently Asked Questions
What RTD types are supported by the ACM5320?
The ACM5320 supports Pt100 and Pt1000 RTDs with automatic linearization for both types. The device includes internal lookup tables for the Callendar-Van Dusen equation, providing linearization accuracy of ±0.1°C across the full -200°C to +850°C range.
Use ACM5320 for Pt100 or Pt1000 RTDs requiring high accuracy.