ITRxxx 50 Ohm Passive Integrators

  • Ultra-Fast Response – Time constants from 200 ns to 12 µs for precise signal integration
  • High Bandwidth – Supports frequencies up to 1.4 GHz
  • Accurate Signal Reconstruction – Eliminates errors from numerical integration
  • Passive & Reliable – No power required, ensuring long-term stability
  • Oscilloscope-Compatible – Seamless integration with high-impedance inputs
  • Versatile Connectivity – Available with N, BNC, and SMA connectors

Select Options/Sizes:

Data Sheet LTR

SPECIFICATIONS

ITR Passive Integrators – High-Precision Signal Processing

Accurate Integration for Fast Pulsed Signal Measurement

The ITR Series Passive Integrators by Montena are designed to work with derivative sensors, such as field and current probes, for the measurement of fast pulsed signals. These passive integrators provide a flat frequency response while eliminating errors associated with numerical integration, ensuring high-precision measurements for EMC, RF, and high-voltage testing.

 

Key Features & Benefits

  • Flat Frequency Response: Ensures accurate signal reconstruction without distortion.

  • Ultra-Fast Time Constants: Available in 200 ns, 1.2 µs, and 12 µs models.

  • High Bandwidth: Supports cut-off frequencies up to 1.4 GHz.

  • Robust Design: Passive, no power required, ensuring high reliability.

  • Oscilloscope-compatible: Ideal for use with high-impedance inputs for precise measurements.

  • Multiple Connector Options: Available with N, BNC, or SMA connectors for seamless integration.

 

Technical Specifications

ModelTime Constant (T)Cut-off Frequency (-3 dB)Input ImpedancePeak Max Input VoltageOutput LoadingConnectorsDimensions (mm)Weight
ITR200N 200 ns 1.4 GHz 50 Ω 1 kV (100 ns pulse) >10 kΩ N(f) - BNC 63 x 18 x 18 65 g
ITR1U2 1.2 µs 1 GHz 50 Ω 1 kV (100 ns pulse) >10 kΩ N(f) - BNC 63 x 18 x 18 65 g
ITR12U 12 µs 200 MHz 50 Ω 1 kV (100 ns pulse) >10 kΩ N(f) - BNC 63 x 18 x 18 65 g

Ordering Information

Reference Description  
ITR200N-A Passive integrator, T = 200 ns, up to 1.4 GHz, N(f) - BNC connectors.
ITR200N-S Passive integrator, T = 200 ns, up to 1.4 GHz, SMA(f) - SMA(m) connectors.  
ITR1U2-A Passive integrator, T = 1.2 µs, up to 1 GHz, N(f) - BNC connectors.  
ITR1U2-S Passive integrator, T = 1.2 µs, up to 1 GHz, SMA(f) - SMA(m) connectors.  
ITR12U-A Passive integrator, T = 12 µs, up to 200 MHz, N(f) - BNC connectors.  
ITR12U-S Passive integrator, T = 12 µs, up to 200 MHz, SMA(f) - SMA(m) connectors.  

Applications

  • EMC & RF Testing: Enhances field and current probe accuracy for transient measurements.

  • High-Voltage & Pulsed Power Testing: Ensures precise integration of fast pulses.

  • Aerospace & Defense: Supports EMP & transient pulse characterization.

  • Scientific Research: Ideal for particle acceleration, plasma physics, and pulsed power studies.

Related Products & Accessories

Accessory Description  
IA1M-50 Impedance adapter (1 MΩ → 50 Ω), on battery, DC – 650 MHz, BNC - SMA connectors, with charger (110-240V)  
SGE1G Ground plane D-dot field sensor, up to 1 GHz, SMA connector.  
SGE3-5G Ground plane D-dot field sensor, up to 3.5 GHz, SMA connector   
SGM2G Ground plane B-dot field sensor, up to 2 GHz, SMA connector  
SFE1G Free space D-dot field sensor, up to 1 GHz, 2 x SMA(m) connectors.  
SFE3-5G Free space D-dot field sensor, up to 3.5 GHz, 2 x SMA(m) connectors   
SFM2G Free space B-dot field sensor, up to 2 GHz, 2 x SMA(m) connectors  
BL3-5G Balun for free space field sensors, 500 Hz - 3.5 GHz, 3 x SMA(f) connectors.  
BL10G Balun for free space field sensors, 100 kHz - 10 GHz, 3 x SMA(f) conn.  (same size BL3-5G)
Cx-yz Highly shielded semirigid coaxial cables are used for field/current or voltage sensors. Where:
x = cable length : 0.1, 1, 3, 5, 10 or 15 m
y = connector 1 : code S for SMA(m), N for Type-N(m)
z = connector 2 : code S for SMA(m), N for Type-N(m) or B for BNC(m)
 
PULSELab Pulse measurement and processing software application,
Life-time license for installation on one PC
 

 

What are the differences between passive integration and Numerical Integration?

FeaturePassive IntegrationNumerical Integration
Principle Based on a passive capacitive circuit Uses oscilloscope math functions or software
Frequency Limit High frequency limit, suitable for fast pulses Limited by sampling rate and processing
Dynamic Range Robust, high dynamic range Dependent on oscilloscope resolution
Real-Time Capability Yes, provides immediate signal integration No, requires post-processing
Accuracy High accuracy, no digital processing errors Prone to offset errors, requiring correction
Device Dependency Must be connected to high-impedance measurement device Works with any oscilloscope with math functions
Attenuation High attenuation, fiber optic links cannot be used No additional signal loss due to passive elements
Flexibility Limited to high-impedance measurement setups Can be performed externally using software

 

Both methods have their advantages and drawbacks. Passive integration provides real-time, high-frequency measurements but requires specific hardware. Numerical integration offers flexibility and software-based processing, but it may introduce offset errors and delay due to post-processing.

 

Why Choose Absolute EMC?

  • Authorized North American Partner for Montena – Providing expert sales & support.

  • Industry-Leading Passive Integrators – Designed for high-precision EMC & transient analysis.

  • Comprehensive Technical Support & Integration Services – Ensuring seamless performance.

 
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