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Home > Products > Sensors, Transducers > Sensor, Transducer Amplifiers

Analog Devices Inc. 5B37-R-05

Name: 5B37-R-05
Brand: Analog Devices Inc.
SKU: 5B37-R-05
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 5B37-R-05

Manufacturer:: Analog Devices Inc.

Category:: Sensor, Transducer Amplifiers

Package:

Datasheet:: 5B37-R-05.pdf

Description:: MODULE ISOL THERMO-IN LIN

Quantity:: RFQ Add To RFQ list

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Inventory:1,249

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Product details

Overview

5B37-R-05 from Analog Devices is a single-channel isolated thermocouple input signal conditioner for Type R thermocouples, delivering 0 V to +5 V isolated output with ±0.05% span accuracy, 1500 V_rms input-to-output isolation, and 4 Hz bandwidth. It features chopper-stabilized amplification (±1 µV/°C input offset drift), internal cold-junction compensation (±0.25°C error at +25°C), and 240 V_rms continuous input protection-used in industrial temperature monitoring systems requiring high noise immunity and hazardous-area compliance.

For engineers reviewing the 5B37-R-05 datasheet, 5B37-R-05 pinout, 5B37-R-05 application, or 5B37-R-05 equivalent, key selection criteria include thermocouple type support (R), input range (0°C to +1750°C), isolation rating (1500 V_rms), cold-junction compensation accuracy, and hot-swappable 5B-series compatibility with standard backplanes.

Technical Context

The 5B37-R-05 implements transformer-coupled signal isolation with proprietary modulation for linear, stable transfer across 1500 V_rms. Its chopper-stabilized input amplifier achieves ±1 µV/°C input offset drift and supports precise zero suppression via laser-trimmed offset subtraction.

It integrates multi-pole low-pass filtering (4 Hz –3 dB cutoff) yielding 60 dB normal-mode rejection at 60 Hz and 160 dB common-mode rejection with 1 kΩ source imbalance. The module uses a differential floating field-side input and requires output common within ±3 V of power common.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Type	Type R thermocouple (0°C to +1750°C)
Output Range	0 V to +5 V, low-impedance buffered output (50 Ω)
Isolation Rating	1500 V_rms continuous input-to-output isolation
Accuracy	±0.05% span ±10 µV RTI ±0.05% of Vz + CJC sensor error
Bandwidth	4 Hz (–3 dB), enabling high-noise rejection in industrial environments
Cold-Junction Comp.	±0.25°C initial error at +25°C ambient; ±0.5°C over +5°C to +45°C
Input Protection	Withstands 240 V_rms continuous at screw terminals without damage

Pinout & Package

Package: 2.275" × 2.375" × 0.595" (57.8 mm × 59.1 mm × 15.1 mm) potted module with standardized 5B-series footprint and screw-terminal field interface.

Pin/Terminal	Circuit Role	Design Meaning
1	– EXC	Negative excitation terminal; used for optional sensor excitation or open-circuit detection bias path
2	LO	Low-side thermocouple input reference; forms differential input pair with HI
3	HI	High-side thermocouple input; accepts millivolt-level R-type thermocouple signal
4	n/c	No connection; internally unconnected and unused

Key Features

Feature	Design Value
Hot-swappable 5B-series compatibility	Enables live insertion/removal without disrupting field wiring or system power
Transformer-based isolation	Provides galvanic separation meeting FM Class 1 Div 2 and CSA approvals for hazardous locations
Chopper-stabilized amplification	Delivers ±1 µV/°C input offset drift for stable long-term temperature measurement
Multi-pole 4 Hz low-pass filter	Suppresses 60 Hz line noise by 60 dB and enhances CMR to 160 dB with 1 kΩ imbalance
Open thermocouple detection	Generates predictable upscale output (10 s response) for fault indication without external components

Applications

Industrial Temperature Monitoring	Hazardous Area Process Control
Use Scenario: Continuous monitoring of furnace, kiln, or reactor temperatures up to +1750°C using Type R thermocouples in electrically noisy plant environments. IC Role / Device Role / Timing Role: Isolated signal conditioner converting raw R-type thermocouple mV output into a robust, referenced 0–5 V analog signal for PLC or DAQ input. Use Value: Eliminates ground loops and protects downstream electronics from 240 V_rms transients while maintaining ±0.25°C cold-junction accuracy at ambient.	Use Scenario: Temperature sensing in petrochemical refineries where flammable gas may be present under fault conditions (Class 1, Div 2). IC Role / Device Role / Timing Role: Nonincendive signal interface certified by FM and CSA for safe operation without explosion-proof enclosures. Use Value: Enables direct integration into intrinsically safe systems using standard 5B backplanes with built-in cold-junction sensors.
High-Accuracy Furnace Calibration	Legacy System Signal Conditioning
Use Scenario: Calibration-grade temperature acquisition in metrology labs requiring traceable, low-drift analog conditioning for R-type thermocouples. IC Role / Device Role / Timing Role: Precision front-end providing ±0.05% span accuracy, <0.2 µV_rms input noise, and laser-trimmed zero suppression. Use Value: Supports expanded-scale measurements by suppressing large zero offsets while preserving full resolution over narrow spans.	Use Scenario: Retrofitting aging analog recorders or programmable controllers with modern, isolated thermocouple inputs without rewiring. IC Role / Device Role / Timing Role: Drop-in replacement module compatible with existing 5B-series sockets and AC1361 cold-junction sensors on backplanes. Use Value: Maintains identical mechanical footprint, pinout, and output drive capability-enabling seamless upgrade of legacy control cabinets.

Industrial Temperature Monitoring

Hazardous Area Process Control

Use Scenario: Continuous monitoring of furnace, kiln, or reactor temperatures up to +1750°C using Type R thermocouples in electrically noisy plant environments.

IC Role / Device Role / Timing Role: Isolated signal conditioner converting raw R-type thermocouple mV output into a robust, referenced 0–5 V analog signal for PLC or DAQ input.

Use Value: Eliminates ground loops and protects downstream electronics from 240 V_rms transients while maintaining ±0.25°C cold-junction accuracy at ambient.

Use Scenario: Temperature sensing in petrochemical refineries where flammable gas may be present under fault conditions (Class 1, Div 2).

IC Role / Device Role / Timing Role: Nonincendive signal interface certified by FM and CSA for safe operation without explosion-proof enclosures.

Use Value: Enables direct integration into intrinsically safe systems using standard 5B backplanes with built-in cold-junction sensors.

High-Accuracy Furnace Calibration

Legacy System Signal Conditioning

Use Scenario: Calibration-grade temperature acquisition in metrology labs requiring traceable, low-drift analog conditioning for R-type thermocouples.

IC Role / Device Role / Timing Role: Precision front-end providing ±0.05% span accuracy, <0.2 µV_rms input noise, and laser-trimmed zero suppression.

Use Value: Supports expanded-scale measurements by suppressing large zero offsets while preserving full resolution over narrow spans.

Use Scenario: Retrofitting aging analog recorders or programmable controllers with modern, isolated thermocouple inputs without rewiring.

IC Role / Device Role / Timing Role: Drop-in replacement module compatible with existing 5B-series sockets and AC1361 cold-junction sensors on backplanes.

Use Value: Maintains identical mechanical footprint, pinout, and output drive capability-enabling seamless upgrade of legacy control cabinets.

Equivalent & Alternatives

The following parts are listed as comparable options for similar thermocouple signal conditioning applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
5B37-S-05	Same package, pinout, and isolation; supports Type S thermocouple (0°C to +1750°C) with identical specs except CJC calibration curve	Used where Type S thermocouples replace Type R due to higher oxidation resistance above 1200°C	Select 5B37-S-05 only when sensor type matches S; not interchangeable without recalibration
ADAM-4018	8-channel Ethernet-enabled module; no transformer isolation; 1500 V_DC isolation via optocouplers; ±0.1% accuracy; 10 Hz bandwidth	Designed for networked distributed I/O rather than plug-in backplane integration	Choose ADAM-4018 for remote, IP-connected deployments; 5B37-R-05 remains optimal for centralized, hot-swappable rack systems

Compared with 5B37-S-05 and ADAM-4018, the 5B37-R-05 uniquely combines Type R-specific cold-junction compensation, transformer-based 1500 V_rms isolation, and true hot-swap capability in a standardized 5B form factor-making it irreplaceable in FM/CSA-certified, backplane-based industrial control cabinets requiring R-type thermocouple fidelity.

Availability

5B37-R-05 is available at Aetrix Electronics and suitable for industrial temperature monitoring, hazardous-area process control, high-accuracy furnace calibration, and legacy system signal conditioning requiring stable component supply and long-term obsolescence management.

Supply support for 5B37-R-05 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.

The 5B37-R-05 belongs to the 5B Series of plug-in signal conditioners, engineered for rugged industrial environments requiring transformer-isolated, hot-swappable, and FM/CSA-certified analog interfacing of thermocouples and other low-level sensors.

FAQ

What thermocouple types does the 5B37-R-05 support?

The 5B37-R-05 is specifically calibrated for Type R thermocouples, covering 0°C to +1750°C. It does not support other thermocouple types-each 5B37 variant (e.g., 5B37-K-02, 5B37-S-05) is factory-configured for its designated type. Using a Type R thermocouple with the 5B37-R-05 ensures correct cold-junction compensation and full accuracy specification compliance.

Does the 5B37-R-05 require external cold-junction compensation?

No-the 5B37-R-05 includes internal cold-junction compensation with ±0.25°C accuracy at +25°C ambient. It relies on the AC1361 cold-junction sensor integrated into compatible 5B-series backplanes. No external sensor or circuitry is needed when used with standard 5B mounting hardware.

What is the maximum continuous input voltage the 5B37-R-05 can withstand?

The 5B37-R-05 withstands 240 V_rms continuously at its input screw terminals without damage. This protects downstream data acquisition or control systems from field-side overvoltage faults, a critical feature for industrial installations with long sensor leads exposed to electrical noise or accidental contact.

Can the 5B37-R-05 be hot-swapped in an energized 5B backplane?

Yes-the 5B37-R-05 is fully hot-swappable with all 5B-series backplanes. It may be inserted or removed while the system is powered and operating, without interrupting field wiring, power, or communication to other modules. This enables maintenance and reconfiguration without system downtime.

What output voltage range does the 5B37-R-05 provide?

The 5B37-R-05 provides a precision 0 V to +5 V isolated output signal, referenced to output common. The output is buffered, low-impedance (50 Ω), and capable of driving loads >50 kΩ while maintaining specified accuracy and linearity per the datasheet.

5B37-R-05 Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Packaging:: Bulk

Product Status:: Obsolete

Amplifier Type:: Analog Output

Voltage - Supply:: 4.75V ~ 5.25V

Output Type:: Analog

Current - Supply:: 30 mA

Operating Temperature:: -40°C ~ 85°C

Mounting Type:: Surface Mount

5B37-R-05 FAQ

1.How can I place an order for 5B37-R-05 through Aetrix?

Please submit a Request for Quotation (RFQ) for 5B37-R-05 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 5B37-R-05 reliable?

The price and inventory of 5B37-R-05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5B37-R-05 is usually 5 days.

3.What payment methods are accepted for 5B37-R-05?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5B37-R-05 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 5B37-R-05?

5B37-R-05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 5B37-R-05 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 5B37-R-05?

For technical support, including 5B37-R-05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5B37-R-05 requirements.

6.How does Aetrix verify that 5B37-R-05 is sourced from the original manufacturer or authorized distributors?

All 5B37-R-05 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 5B37-R-05 meets industry standards.

7.What is the process for return or replacement of 5B37-R-05?

All 5B37-R-05 units undergo pre-shipment inspection (PSI). If there is an issue with 5B37-R-05, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 5B37-R-05 part is unused and in its original packaging.

Return procedure for 5B37-R-05:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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