Active High-Precision Output Signal Conditioning Module TFW-N Series

The TFW-N Series is an active high-precision signal conditioning module designed to directly acquire and convert PWM input signals into isolated 0–20mA current or 0–10V voltage output signals. Leveraging advanced electromagnetic isolation technology, this module delivers superior accuracy and lower temperature drift compared to traditional optocoupler-based solutions. It ensures complete electrical isolation between input and output terminals, enhancing safety and signal integrity in demanding industrial environments.

Key Features & Specifications

• High Precision & Linearity: Accuracy of ±0.1% F.S. (Full Scale) for reliable signal conversion.

• Robust Isolation: Withstands 2000VAC/60s between input/output terminals.

• Low Noise Output: Ripple noise as low as 30mVpp (typical, 20MHz bandwidth).

• PWM Input Compatibility: Supports standard PWM signal inputs.

• Compact Design: DIP18 package (26 × 9.5 × 12.5 mm), ideal for space-constrained applications.

• ESD Protection: Compliant with IEC/EN61000-4-2 (Contact discharge: ±4kV, Performance Criteria B).

• Terminal Isolation: Input/output and power/signal lines are mutually isolated.

  
  

Applications

Optimized for instrumentation, industrial automation, and control systems requiring precise analog signal generation from PWM sources, such as:

• Motor speed control

• Sensor signal conditioning

• PLC and DCS interfaces

Advantages Over Alternatives

• Electromagnetic Isolation: Eliminates optocoupler limitations, ensuring higher long-term stability and wider operating temperature tolerance

• Fast Response: Minimal signal latency for real-time control applications.

• Industrial Durability: Designed to operate reliably in harsh environments with enhanced ESD and electrical noise immunity.