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

Analog Devices Inc. 7B27-J-01-1

Name: 7B27-J-01-1
Brand: Analog Devices Inc.
SKU: 7B27-J-01-1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 7B27-J-01-1

Manufacturer:: Analog Devices Inc.

Category:: Sensor, Transducer Amplifiers

Package:

Datasheet:: 7B27-J-01-1.pdf

Description:: MODULE ISOL THERMO-IN NON-LIN

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Product details

Overview

7B27-J-01-1 from Analog Devices is a single-channel isolated thermocouple input signal conditioner for Type J thermocouples, providing factory-configured +1 V to +5 V output, ±0.01% initial accuracy, and 100 V_rms continuous input-to-output isolation. It operates over –40°C to +85°C and interfaces directly with industrial process control systems requiring cold junction compensation and open-circuit detection.

For engineers reviewing the 7B27-J-01-1 datasheet, 7B27-J-01-1 pinout, 7B27-J-01-1 application, or 7B27-J-01-1 equivalent, key selection criteria include thermocouple type (J), input range (–100°C to +100°C), output scaling (+1 V to +5 V), isolation rating (100 V_rms), and compatibility with 7B Series backplanes (AC1363) using universal 6-pin screw-terminal interface.

Technical Context

The 7B27-J-01-1 implements transformer-based amplitude modulation for galvanic isolation, with internal DC/DC conversion powering the isolated front-end. Cold junction compensation uses an embedded thermistor on the backplane, not on-module, and is accurate to ±1.0°C over +5°C to +45°C ambient.

Signal conditioning includes a one-pole 3 Hz input filter, low-drift amplifier, two-pole 3 Hz output low-pass filter, and upscale open-circuit indication via current source. Input protection covers ±30 V_dc continuous and meets ANSI/IEEE C37.90.1-1989 transient standards.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Type	Type J thermocouple, –100°C to +100°C range
Output Range	+1 V to +5 V, linear with input, drives ≥2 kΩ loads
Accuracy	±0.01% span initial @ +25°C (±0.1% max)
Isolation Rating	100 V_rms continuous input-to-output common-mode voltage
Bandwidth	–3 dB at 3 Hz, supports slow-varying temperature signals
Cold Junction Comp.	±1.0°C error over +5°C to +45°C ambient, requires 7B backplane sensor
Power Supply	+14 V_dc to +35 V_dc, nominal +24 V_dc, max 25 mA

Pinout & Package

Package: 1.663" × 2.11" × 0.563" (42.24 mm × 53.6 mm × 14.3 mm) module with gold-plated 6-pin socket interface for 7B Series backplanes (e.g., AC1363). Mounts via DIN rail or panel bracket.

Pin/Terminal	Circuit Role	Design Meaning
0	SENSOR INPUT	Thermocouple sensing node; connects directly to Type J thermocouple wires
1	INPUT HIGH	Positive thermocouple lead terminal; referenced to Pin 2
2	INPUT LOW	Negative thermocouple lead terminal; returns to backplane common
3	POWER SUPPLY (DC)	+14 V_dc to +35 V_dc input; powers both isolated sections via internal DC/DC
4	OUTPUT VOLTAGE	+1 V to +5 V analog output; low-impedance (<1 Ω), buffered
5	OUTPUT & POWER COMMON	Reference return for output and supply; tied to backplane common plane

Key Features

Feature	Design Value
Hot-swappable module	Insert/remove under full power without disrupting field wiring or backplane operation
Factory-configured output	+1 V to +5 V scaling fixed at manufacture; no user adjustment required
Upscale open-circuit detection	Current-source-driven output above +5 V indicates broken thermocouple wire
Backplane-integrated CJC	Relies on thermistor in 7B Series backplane (not onboard); eliminates module-level calibration drift
EMI-hardened design	60 dB normal-mode rejection @ 50/60 Hz; ±0.5% span error under 400 MHz, 5 W RF field

Applications

Industrial Process Monitoring	Factory Floor Temperature Control
Use Scenario: Continuous monitoring of furnace or reactor temperature using Type J thermocouples in harsh environments with high EMI and ground potential differences. IC Role / Device Role / Timing Role: Isolated signal conditioner converting thermocouple EMF to standardized +1 V to +5 V output for PLC analog inputs. Use Value: 100 V_rms isolation prevents ground-loop errors; ±0.01% accuracy ensures precise setpoint tracking across –100°C to +100°C range.	Use Scenario: Retrofitting legacy temperature loops with modern DCS systems where field wiring must remain intact and hot-swap capability reduces downtime. IC Role / Device Role / Timing Role: Plug-in module in AC1363 backplane providing isolated, filtered, and linearized thermocouple output compatible with existing 0–5 V ADC subsystems. Use Value: Universal 6-pin pinout enables mix-and-match with other 7B modules; 3 Hz bandwidth suppresses 50/60 Hz noise without phase lag in control feedback paths.
Thermocouple-Based QA Testing	Energy-Efficient HVAC Sensor Interface
Use Scenario: Calibration lab environment verifying thermocouple probe accuracy across defined temperature points using traceable reference sources. IC Role / Device Role / Timing Role: Precision interface delivering stable, low-drift output for digitization by calibrated benchtop DMMs or data loggers. Use Value: ±0.5 µV/°C input offset drift and 0.6 µV peak noise (0.1–10 Hz) enable sub-0.1°C resolution in static measurements.	Use Scenario: Distributed air-handling unit (AHU) temperature sensing where long thermocouple runs introduce noise and common-mode interference. IC Role / Device Role / Timing Role: Local signal conditioning at sensor point, eliminating noise pickup before transmission to central BMS controller. Use Value: 160 dB CMR @ 50/60 Hz rejects induced noise from nearby motors or lighting ballasts; <1 Ω output impedance drives 2 kΩ BMS inputs without loading error.

Industrial Process Monitoring

Factory Floor Temperature Control

Use Scenario: Continuous monitoring of furnace or reactor temperature using Type J thermocouples in harsh environments with high EMI and ground potential differences.

IC Role / Device Role / Timing Role: Isolated signal conditioner converting thermocouple EMF to standardized +1 V to +5 V output for PLC analog inputs.

Use Value: 100 V_rms isolation prevents ground-loop errors; ±0.01% accuracy ensures precise setpoint tracking across –100°C to +100°C range.

Use Scenario: Retrofitting legacy temperature loops with modern DCS systems where field wiring must remain intact and hot-swap capability reduces downtime.

IC Role / Device Role / Timing Role: Plug-in module in AC1363 backplane providing isolated, filtered, and linearized thermocouple output compatible with existing 0–5 V ADC subsystems.

Use Value: Universal 6-pin pinout enables mix-and-match with other 7B modules; 3 Hz bandwidth suppresses 50/60 Hz noise without phase lag in control feedback paths.

Thermocouple-Based QA Testing

Energy-Efficient HVAC Sensor Interface

Use Scenario: Calibration lab environment verifying thermocouple probe accuracy across defined temperature points using traceable reference sources.

IC Role / Device Role / Timing Role: Precision interface delivering stable, low-drift output for digitization by calibrated benchtop DMMs or data loggers.

Use Value: ±0.5 µV/°C input offset drift and 0.6 µV peak noise (0.1–10 Hz) enable sub-0.1°C resolution in static measurements.

Use Scenario: Distributed air-handling unit (AHU) temperature sensing where long thermocouple runs introduce noise and common-mode interference.

IC Role / Device Role / Timing Role: Local signal conditioning at sensor point, eliminating noise pickup before transmission to central BMS controller.

Use Value: 160 dB CMR @ 50/60 Hz rejects induced noise from nearby motors or lighting ballasts; <1 Ω output impedance drives 2 kΩ BMS inputs without loading error.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADAM-4018 (Advantech)	8-channel, Ethernet-connected, software-configurable output ranges; no onboard CJC-requires external sensor or algorithm	Designed for networked SCADA systems; lacks hot-swap mechanical interface and backplane integration	Choose for distributed, IP-based monitoring; avoid when retrofitting existing 7B rack infrastructure
OMEGA iDRN-TC (OMEGA Engineering)	Single-channel, DIN-rail mount, +10 V output only; ±0.1% accuracy; 1500 V_rms isolation	Higher isolation rating but fixed 0–10 V output; no upscale open-circuit indication or backplane compatibility	Choose for higher isolation needs and standalone deployment; avoid when +1 V to +5 V scaling or 7B ecosystem interoperability is required

Compared with ADAM-4018 and OMEGA iDRN-TC, the 7B27-J-01-1 delivers deterministic +1 V to +5 V scaling, seamless integration into AC1363 backplanes, and backplane-referenced cold junction compensation-critical for repeatable accuracy in multi-channel industrial racks without per-module calibration.

Availability

7B27-J-01-1 is available at Aetrix Electronics and suitable for industrial process monitoring, factory floor temperature control, and thermocouple-based QA testing requiring stable component supply, long-term lifecycle support, and compatibility with legacy 7B Series infrastructure.

Supply support for 7B27-J-01-1 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 company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and industrial applications.

The 7B Series was designed specifically for rugged, modular signal conditioning in process control and factory automation-emphasizing channel-to-channel isolation, hot-swap reliability, and direct transducer interfacing without external support circuitry.

FAQ

What thermocouple types does the 7B27-J-01-1 support?

The 7B27-J-01-1 is factory-configured exclusively for Type J thermocouples over the –100°C to +100°C range. It does not support K, T, E, R, S, or B types-those require distinct part numbers (e.g., 7B27-K-02-1). The module's internal linearization and cold junction compensation algorithms are calibrated specifically for Type J characteristics, and changing thermocouple type would invalidate accuracy specifications.

Does the 7B27-J-01-1 include onboard cold junction compensation?

No-the 7B27-J-01-1 relies on the thermistor-based cold junction compensation (CJC) sensor embedded in the 7B Series backplane (e.g., AC1363), not on the module itself. This architecture ensures consistent CJC across all channels and eliminates per-module calibration drift. Using the 7B27-J-01-1 outside a compatible 7B backplane voids the ±1.0°C CJC accuracy specification.

What is the meaning of "upscale open-circuit indication" in the 7B27-J-01-1?

Upscale open-circuit indication means that when the thermocouple loop is broken (open), the 7B27-J-01-1 outputs a voltage above its nominal full-scale range-specifically >+5 V for the +1 V to +5 V version. This is achieved via an internal current source driving the output stage, enabling immediate fault detection in PLC or DCS systems without additional diagnostics hardware.

Can the 7B27-J-01-1 be powered from a 12 VDC supply?

No-the 7B27-J-01-1 requires a minimum +14 VDC supply and operates up to +35 VDC. A 12 VDC source falls below the specified operating range and will prevent proper DC/DC converter operation in the isolated front-end, resulting in undefined output behavior or failure to meet accuracy and isolation specifications.

Is the 7B27-J-01-1 compatible with non-Analog Devices backplanes?

The 7B27-J-01-1 is mechanically and electrically designed for Analog Devices' 7B Series backplanes (e.g., AC1363) with gold-plated 6-pin sockets and integrated CJC sensors. While physical insertion may be possible in third-party carriers, cold junction compensation, hot-swap sequencing, and power distribution are not guaranteed-making full functional compatibility dependent on strict adherence to the original 7B ecosystem.

7B27-J-01-1 Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Packaging:: Bulk

Product Status:: Obsolete

Amplifier Type:: -

Voltage - Supply:: -

Output Type:: -

Current - Supply:: -

Operating Temperature:: -

Mounting Type:: -

7B27-J-01-1 FAQ

1.How can I place an order for 7B27-J-01-1 through Aetrix?

Please submit a Request for Quotation (RFQ) for 7B27-J-01-1 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 7B27-J-01-1 reliable?

The price and inventory of 7B27-J-01-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7B27-J-01-1 is usually 5 days.

3.What payment methods are accepted for 7B27-J-01-1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7B27-J-01-1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 7B27-J-01-1?

7B27-J-01-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 7B27-J-01-1 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 7B27-J-01-1?

For technical support, including 7B27-J-01-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7B27-J-01-1 requirements.

6.How does Aetrix verify that 7B27-J-01-1 is sourced from the original manufacturer or authorized distributors?

All 7B27-J-01-1 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 7B27-J-01-1 meets industry standards.

7.What is the process for return or replacement of 7B27-J-01-1?

All 7B27-J-01-1 units undergo pre-shipment inspection (PSI). If there is an issue with 7B27-J-01-1, 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 7B27-J-01-1 part is unused and in its original packaging.

Return procedure for 7B27-J-01-1:

1.Submit a request within 90 days.

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

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