Analog Devices 5B45/5B46 Isolated Frequency Input Module Datasheet

The 5B Series represents an innovative generation of low cost, high performance plug-in signal conditioners. Designed for industrial applications, these modules incorporate highly reliable transformer-based isolation and automated surface-mount manufacturing technology.


Analog Devices 5B45/5B46 Isolated Frequency Input Module Datasheet - cover page
Brand
Analog Devices
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
8
File format
PDF
File size
698 KB
Published
26 March, 2012
Updated
29 September, 2023
MD5 checksum
78C9346DEE2473DA222DEE4823F8B186

About this manual

The 5B45 and 5B46 are single‑channel isolated frequency‑input modules that generate a 0‑to‑+5 V output proportional to the input frequency. Model 5B45 handles 500 Hz – 20 kHz, while model 5B46 covers 20 kHz – 275 kHz. Both modules provide 1500 V rms isolation, +0.05 % calibrated accuracy, and can be hot‑swapped without disturbing system power.

These modules are compact (2.27" × 2.32" × 0.595"), potted, and feature interchangeable pin‑outs. They include built‑in protection for 240 V rms input, selectable threshold and hysteresis settings, and are approved for hazardous locations (FM, CSA) and EU EMC directives.

What's inside

  • FEATURES
  • APPLICATIONS
  • PRODUCT OVERVIEW
  • GENERAL DESCRIPTION
  • 5B45 and 5B46 Models Available
  • 5B45 and 5B46 Specifications
  • PIN CONFIGURATIONS AND FUNCTIONAL DESCRIPTIONS
  • OUTLINE DIMENSIONS
  • NOTES

Specifications

Input frequency range (5B45)500 Hz – 20 kHz
Output voltage range0 V – +5 V
Isolation rating1500 V rms continuous
Accuracy (span)+0.05 % of span
Operating temperature range-40 °C to +85 °C

Frequently asked questions

What input frequency range does the 5B45 support?

The 5B45 accepts full‑scale inputs from 500 Hz up to 20 kHz.

What is the isolation voltage rating of the 5B45/5B46 modules?

Both modules provide 1500 V rms continuous isolation between input and output.

Can the modules be hot‑swapped without powering down the system?

Yes, the 5B45 and 5B46 are mix‑and‑match and hot‑swappable, allowing insertion or removal without disturbing system power.

What are the dimensions of the 5B45/5B46 modules?

Each module measures 2.27 in × 2.32 in × 0.595 in (57.8 mm × 59.1 mm × 15.1 mm).

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