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

Analog Devices Inc. 5B34-11-FC

Name: 5B34-11-FC
Brand: Analog Devices Inc.
SKU: 5B34-11-FC
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 5B34-11-FC

Manufacturer:: Analog Devices Inc.

Category:: Sensor, Transducer Amplifiers

Package:

Datasheet:: 5B34-11-FC.pdf

Description:: MODULE

Quantity:: RFQ Add To RFQ list

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Inventory:4,217

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Product details

Overview

5B34-11-FC from Analog Devices is a single-channel isolated linearized RTD input signal conditioner for 2- and 3-wire platinum, nickel, or copper RTDs. It provides 0 V to +5 V output, ±0.05% span accuracy, 1500 V_rms isolation, and 4 Hz bandwidth with chopper-stabilized amplification. Used in industrial temperature monitoring systems requiring high noise immunity and field-side overvoltage protection.

For engineers reviewing the 5B34-11-FC datasheet, 5B34-11-FC pinout, 5B34-11-FC application, or 5B34-11-FC equivalent, key selection criteria include RTD type support (e.g., 100 Ω Pt α=0.00385), lead resistance cancellation capability, 240 V_rms input terminal withstand rating, and hot-swappable 5B Series compatibility with FM/CSA Class 1 Div 2 certification.

Technical Context

The 5B34-11-FC implements transformer-coupled galvanic isolation with proprietary modulation for linear signal transfer. Its differential chopper-stabilized amplifier delivers ±0.02°C/°C input offset drift and 0.2 µV_rms (0.1–10 Hz) input noise, enabling precise low-excitation-current RTD measurement.

It integrates dual matched current sources (0.25 mA for 100 Ω Pt/120 Ω Ni; 1.0 mA for 10 Ω Cu), laser-trimmed feedback linearization, and multi-pole 4 Hz low-pass filtering-ensuring ±0.05% conformity error and 160 dB CMR at 50/60 Hz with 1 kΩ source imbalance.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Range	0 V to +5 V, compatible with standard ADC inputs and PLC analog modules.
Isolation Rating	1500 V_rms continuous input-to-output, meeting industrial safety requirements for hazardous locations.
RTD Support	2- and 3-wire configurations for 100 Ω Pt (α=0.00385), 120 Ω Ni, or 10 Ω Cu RTDs-no external linearization needed.
Accuracy	±0.05% span ±0.04 Ω ±0.05(Rz1), including repeatability, hysteresis, and conformity error at +25°C.
Bandwidth	4 Hz (-3 dB), optimized for rejecting 50/60 Hz power-line interference in noisy industrial environments.
Input Protection	Withstands 240 V_rms continuously at screw terminals-prevents damage from field wiring faults.
Power Supply	+5 V ±5%, 30 mA typical-designed for direct interface with 5B Series backplanes (e.g., 5B01, 5B08).

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 connections.

Pin/Terminal	Circuit Role	Design Meaning
1	NC	No connection-unassigned pin per functional pinout; must remain unconnected.
2	LO	Low-side RTD terminal; connects to one end of RTD sensor or lead wire in 2-/3-wire configuration.
3	HI	High-side RTD terminal; carries excitation current and senses voltage across RTD element.
4	RETURN	RTD return path for 3-wire lead compensation; enables cancellation of equal lead resistances.

Key Features

Feature	Design Value
Laser-trimmed linearization	Eliminates external lookup tables or software correction for 100 Ω Pt, 120 Ω Ni, and 10 Ω Cu RTDs across full range.
Dual matched current sources	0.25 mA (Pt/Ni) or 1.0 mA (Cu) with precision lead-resistance cancellation in 3-wire mode.
Transformer-based isolation	1500 V_rms continuous barrier with proprietary modulation-no optocoupler drift or aging effects.
Hot-swappable design	Insert/remove without powering down backplane or disturbing field wiring-enables live maintenance in control systems.
FM/CSA Class 1 Div 2 approval	Certified for use in hazardous locations where flammable gases may be present only under fault conditions.

Applications

Temperature Monitoring in Refineries	PLC-Based HVAC Control
Use Scenario: Continuous measurement of reactor vessel wall temperature using 3-wire 100 Ω Pt RTDs in explosive hydrocarbon environments. IC Role / Device Role / Timing Role: Isolated RTD signal conditioner providing linearized 0–5 V output to safety-rated PLC analog input card. Use Value: 240 V_rms input protection prevents field fault propagation; FM/CSA certification eliminates need for explosion-proof enclosures.	Use Scenario: Zone-level air temperature feedback in commercial HVAC systems with long sensor runs and shared grounding. IC Role / Device Role / Timing Role: 3-wire RTD conditioner compensating for lead resistance while rejecting 60 Hz ground-loop noise. Use Value: 160 dB common-mode rejection and 4 Hz bandwidth ensure stable readings despite EMI from variable-frequency drives.
Industrial Oven Calibration	Process Skid Instrumentation
Use Scenario: High-accuracy oven temperature profiling using custom-calibrated 100 Ω Pt RTDs across –100°C to +600°C range. IC Role / Device Role / Timing Role: Linearized input module delivering traceable 0–5 V output to data acquisition system with <±0.05% span error. Use Value: Laser-trimmed gain/zero and ±0.02°C/°C input offset drift enable calibration stability over thermal cycling.	Use Scenario: Modular instrumentation on portable process skids requiring field-replaceable signal conditioning without system shutdown. IC Role / Device Role / Timing Role: Hot-swappable 5B34-11-FC module interfacing multiple RTD sensors to centralized I/O chassis. Use Value: Identical mechanical footprint and pinout across 5B Series allows mix-and-match deployment and spares consolidation.

Temperature Monitoring in Refineries

PLC-Based HVAC Control

Use Scenario: Continuous measurement of reactor vessel wall temperature using 3-wire 100 Ω Pt RTDs in explosive hydrocarbon environments.

IC Role / Device Role / Timing Role: Isolated RTD signal conditioner providing linearized 0–5 V output to safety-rated PLC analog input card.

Use Value: 240 V_rms input protection prevents field fault propagation; FM/CSA certification eliminates need for explosion-proof enclosures.

Use Scenario: Zone-level air temperature feedback in commercial HVAC systems with long sensor runs and shared grounding.

IC Role / Device Role / Timing Role: 3-wire RTD conditioner compensating for lead resistance while rejecting 60 Hz ground-loop noise.

Use Value: 160 dB common-mode rejection and 4 Hz bandwidth ensure stable readings despite EMI from variable-frequency drives.

Industrial Oven Calibration

Process Skid Instrumentation

Use Scenario: High-accuracy oven temperature profiling using custom-calibrated 100 Ω Pt RTDs across –100°C to +600°C range.

IC Role / Device Role / Timing Role: Linearized input module delivering traceable 0–5 V output to data acquisition system with <±0.05% span error.

Use Value: Laser-trimmed gain/zero and ±0.02°C/°C input offset drift enable calibration stability over thermal cycling.

Use Scenario: Modular instrumentation on portable process skids requiring field-replaceable signal conditioning without system shutdown.

IC Role / Device Role / Timing Role: Hot-swappable 5B34-11-FC module interfacing multiple RTD sensors to centralized I/O chassis.

Use Value: Identical mechanical footprint and pinout across 5B Series allows mix-and-match deployment and spares consolidation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADAM-4019+ (Advantech)	Modbus RTU output, no transformer isolation; uses internal ADC and microcontroller-based linearization.	Requires host communication stack; lacks intrinsic safety certifications for hazardous areas.	Preferred for distributed Modbus networks where isolation is handled upstream.
ISO124 (Texas Instruments)	Analog isolator IC only-requires external RTD excitation, amplification, and linearization circuitry.	Higher BOM count and layout complexity; no integrated lead-compensation or certified approvals.	Suitable for custom designs needing compact isolation without modular form factor.

Compared with ADAM-4019+ and ISO124, the 5B34-11-FC delivers factory-laser-trimmed linearization, certified hazardous-area operation, and plug-and-play hot-swap capability-reducing system integration time and validation effort for industrial temperature measurement.

Availability

5B34-11-FC is available at Aetrix Electronics and suitable for industrial temperature monitoring, hazardous-area process control, and PLC-integrated HVAC systems requiring stable component supply and long-term lifecycle support.

Supply support for 5B34-11-FC 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 semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for industrial, automotive, and communications markets.

The 5B Series was engineered as a family of rugged, certified, plug-in signal conditioners targeting industrial measurement and control-delivering transformer isolation, RTD linearization, and field-wiring resilience in standardized modular form.

FAQ

What RTD types and configurations does the 5B34-11-FC support?

The 5B34-11-FC supports 2-wire and 3-wire configurations for 100 Ω platinum (α = 0.00385), 120 Ω nickel, and 10 Ω copper RTDs. It does not support true 4-wire RTD measurements-that function is provided by the 5B35 model. Lead resistance cancellation is implemented via dual current sources and RETURN terminal routing, ensuring accurate compensation when lead resistances are matched.

Does the 5B34-11-FC require external power supply regulation?

No-the 5B34-11-FC operates directly from a +5 V ±5% supply, drawing 30 mA typical, and is designed for seamless integration with standard 5B Series backplanes like the 5B01 and 5B08. Its power supply sensitivity is specified as ±0.05°C/V for Pt/Ni RTDs and ±0.5°C/V for Cu RTDs, confirming robust performance within nominal rail tolerance without external regulation.

How is isolation achieved in the 5B34-11-FC, and what standards does it meet?

The 5B34-11-FC uses transformer coupling with a proprietary modulation technique-not optocouplers-to achieve 1500 V_rms continuous input-to-output isolation. It meets ANSI/IEEE C37.90.1-1989 transient surge withstand requirements and is certified by Factory Mutual (FM) and CSA for Class 1, Division 2, Groups A, B, C, and D hazardous locations-confirming non-incendive operation without special enclosures.

Can the 5B34-11-FC be used with existing 5B Series backplanes?

Yes-the 5B34-11-FC shares identical mechanical dimensions (2.275" × 2.375" × 0.595"), pinout, and hot-swap capability with all other 5B Series modules. It can be inserted or removed from any compatible 5B backplane-including those with cold-junction compensation for thermocouples-without disrupting field wiring, power, or adjacent modules.

What is the role of the RETURN pin on the 5B34-11-FC?

The RETURN pin on the 5B34-11-FC serves as the dedicated third-wire compensation path in 3-wire RTD configurations. It routes a second excitation current through the third RTD lead and a laser-trimmed reference resistor, enabling cancellation of equal lead resistances. This ensures that lead resistance errors do not affect the measured RTD value-critical for maintaining ±0.02°C/Ω accuracy in long-sensor installations.

5B34-11-FC Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Packaging:: Tray

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

5B34-11-FC FAQ

1.How can I place an order for 5B34-11-FC through Aetrix?

Please submit a Request for Quotation (RFQ) for 5B34-11-FC 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 5B34-11-FC reliable?

The price and inventory of 5B34-11-FC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5B34-11-FC is usually 5 days.

3.What payment methods are accepted for 5B34-11-FC?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5B34-11-FC transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 5B34-11-FC?

5B34-11-FC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 5B34-11-FC 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 5B34-11-FC?

For technical support, including 5B34-11-FC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5B34-11-FC requirements.

6.How does Aetrix verify that 5B34-11-FC is sourced from the original manufacturer or authorized distributors?

All 5B34-11-FC 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 5B34-11-FC meets industry standards.

7.What is the process for return or replacement of 5B34-11-FC?

All 5B34-11-FC units undergo pre-shipment inspection (PSI). If there is an issue with 5B34-11-FC, 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 5B34-11-FC part is unused and in its original packaging.

Return procedure for 5B34-11-FC:

1.Submit a request within 90 days.

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

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