on October 25th 154

AD590 Temperature Sensor: Specifications, Equivalents, and Datasheet

This article explores the AD590, a distinguished temperature sensor IC celebrated for its direct correlation between output current and absolute temperature. Widely utilized in diverse environments, from industrial settings to laboratory applications, the AD590 is acclaimed for its reliability and adaptability. This article delves deeply into the sensor's characteristics, variants, and applications, providing a thorough understanding of its capabilities and the trust it garners seeking robust solutions for temperature measurement challenges.

Catalog

What is the AD590?

The AD590 is an advanced, two-terminal IC temperature sensor, offering a current output directly proportional to absolute temperature. With an operating voltage range from 4 V to 30 V, it consistently functions as a constant current source, delivering 1 μA per Kelvin. Its precision tuning through laser trimming ensures optimal performance in environments below 150°C. The monolithic structure lowers production costs, while its resilience to voltage variations optimizes remote sensing capabilities. The sensor's proficiency over long distances makes it a favorite for multiplexing systems using straightforward switching methods.

AD590 Equivalents and Alternatives

Parts	Description	Manufacturer
5962-8757104XX	SENSORS/TRANSDUCERS Analog Resistance Sensor, FP-2	Defense Logistics Agency
5962-8757103VXA	SENSORS/TRANSDUCERS Analog Temperature Sensor, ANALOG TEMP SENSOR-CURRENT, FP-2	Defense Supply Center Columbus
5962-8757104XC	SENSORS/TRANSDUCERS Analog Temperature Sensor, ANALOG TEMP SENSOR-CURRENT, 298.2uA, RECTANGULAR, THROUGH HOLE MOUNT, CERAMIC, FP-2	Defense Supply Center Columbus
5962-8757103YA	SENSORS/TRANSDUCERS 2-Terminal IC Temperature Transducer	Defense Logistics Agency
5962-8757103XA	SENSORS/TRANSDUCERS 2-Terminal IC Temperature Transducer	Analog Devices Inc
5962-8757102VXA	SENSORS/TRANSDUCERS Analog Temperature Sensor, ANALOG TEMP SENSOR-CURRENT, FP-2	Analog Devices Inc
AD590IH	SENSORS/TRANSDUCERS Analog Resistance Sensor, 298.2uA, Round, 3 Pin, Through Hole Mount	Harris Semiconductor
AD590KH	TO-206AC, TO-52-3 Metal Can, 3 Through Hole, -55°C ~ 125°C, Analog, Local, 1 (Unlimited), 25°C	Analog Devices Inc
AD590JH	Analog Resistance Sensor, 298.2uA, Round, 3 Pin, Through Hole Mount	Harris Semiconductor
AD590MH/883B	2-Terminal IC Temperature Transducer	Analog Devices Inc
AD590LF	ANALOG TEMP SENSOR-CURRENT, 298.2uA, CERAMIC PACKAGE	Intersil Corporation

AD590 Pin Configuration

AD590 Symbol and Footprint

AD590KH Specifications

Technical specifications, attributes, and parameters of Analog Devices Inc.'s AD590, including parts with specifications similar to the AD590KH.

Type	Parameter
Lifecycle Status	PRODUCTION (Last Updated: 1 month ago)
Contact Plating	Gold
Mounting Type	Through Hole
Number of Pins	3
Operating Temperature	-55°C to 125°C
JESD-609 Code	e4
Part Status	Active
Number of Terminations	3
ECCN Code	EAR99
Additional Feature	TEMPERATURE COEFFICIENT 1 UAK
Base Part Number	AD590
Output Type	Analog Current
Interface	0
Forward Voltage	44V
Linearity	0.8 Cal
Sensing Temperature - Local	-55°C to 150°C
Length	5.84mm
Factory Lead Time	8 Weeks
Mount	Through Hole
Package / Case	TO-206AC, TO-52-3 Metal Can
Test Conditions	25°C
Packaging	Bulk
PbFree Code	no
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Termination	Through Hole
Temperature Coefficient	POSITIVE ppm/°C
Voltage - Supply	4V-30V
Pin Count	3
Power Supplies	5V
Output Current	298.2µA
Sensor Type	Analog, Local
Accuracy - Highest (Lowest)	0.2°C
Height	3.81mm
Width	3.84mm
Radiation Hardening	No
Lead Free	Contains Lead
RoHS Status	ROHS3 Compliant

Features of the AD590

Linear Current Output

The AD590 sensor delivers a linear current output of 1 µA/K, enabling accurate temperature readings. This linearity eases integration into various systems, where simplified signal processing enhances performance in temperature-sensitive settings. The precision it affords meets the innate desire for certainty and control.

Broad Operating Temperature Range

Effective from -55°C to +150°C, the AD590 thrives in diverse environments, from industrial landscapes to scientific explorations. This extensive range ensures it withstands harsh conditions, supporting performance consistency over time, in unpredictable climates without compromise.

Ceramic Sensor Packaging Compatibility

Align with ceramic sensor packaging, the AD590 gains from boosted thermal stability and diminished noise interference. This compatibility safeguards the sensor’s endurance and strength, catering to demanding applications where resilience in materials is prized, aligning with appreciation for durability and reliability.

Enhanced Calibration Precision

Achieving calibration precision at ±0.5°C, the AD590 is well-suited for applications needing temperature control, such as laboratory tools and medical gear. This accuracy reduces the frequency of recalibrations, cutting maintenance efforts and ensuring steady, trustworthy operation, a nod to preferences for reliability with minimal upkeep.

Versatile Two-Terminal Design

With a two-terminal design accommodating a voltage range from 4 V to 30 V, the AD590 offers adaptable power supply integration. This flexibility eases the incorporation into existing setups, allowing smooth upgrades without major redesigns, thereby catering to both pragmatic and innovative inclinations.

Superior Full-Scale Linearity

Presenting superior full-scale linearity of ±0.3°C, the AD590 guarantees reliable performance throughout its range. Such linearity reduces measurement errors, which is use in precision-dependent fields like aerospace, human pursuits of perfection and accuracy.

Economical and Insulated Design

The sensor balances cost-effectiveness with dependable insulation, making it a practical choice for widespread use. Its affordability doesn't compromise quality, providing financially savvy solutions without missing out on performance. The insulation supports sensor longevity and reliability, championing sustained operations, echoing the tendency towards value and longevity.

AD590 Circuit Diagram

The sensor operates by measuring temperature and outputs a current proportional to the absolute temperature, engaging with atmospheric changes. It provides a straightforward interface to connect easily. This simplicity brings a sense of satisfaction to those who value straightforward solutions. Reliable performance across a wide temperature range lends itself to both scientific endeavors and more personal, everyday applications.

AD590 Application Circuits

Standard Configuration

The AD590 proves invaluable in remote temperature sensing with an output conversion of 1 mV/K. This configuration finds extensive use across diverse sectors, such as environmental monitoring and industrial automation. Its resilience and precision make it well-suited for prolonged use. Proper installation plays a role in steady performance, shows the consideration of ambient conditions during setup.

Series Connection

When utilized in series, the AD590 facilitates the detection of minimum sensed temperatures. This setup proves advantageous in extensive systems, offering a safeguard in monitoring environmental variations. Applications in HVAC systems exploit this functionality to preserve preferred temperatures, especially within multi-zone configurations.

Differential Measurement

By fine-tuning R1 and R2, the AD590 can effectively reflect temperature differentials. This method is frequently employed in systems that demand precise thermal control, such as chemical processing. Adjusting resistance values enhances sensitivity, a practice refined through iterative experimentation in practical settings.

Cold Junction Compensation

This circuit design efficiently tracks reference junction temperatures from 15°C to 35°C without the need for an ice bath. It offers a meaningful benefit in thermocouple applications where accurate compensation is desired to achieve precise results. This approach is appreciated in laboratory environments where controlled conditions are nurtured, showcasing the skill of optimizing environmental stability for improved measurement precision.

AD590 Packaging

AD590 Manufacturer Information

Analog Devices has carved a niche in developing high-performance integrated circuits, especially for diverse signal processing needs. Emphasizing innovation, the company has become a trusted name, reshaping various industries by enhancing efficiency and functionality through its broad product range. The dedication to advancing semiconductor tech reveals a nuanced understanding of both technical and market desires. The company's commitment to research and development ensures its leadership in technological advancements. This anticipatory approach enables it to adeptly navigate emerging trends and fulfill expectations, establishing its position as a progressive force in the competitive semiconductor sector. Its focus on R&D presents a template for others aspiring to thrive in a tech-driven world. Analog Devices, with its unmatched expertise and devotion to innovation, has solidified its status as a pioneer in signal processing integrated circuits. Its impact on the industry and commitment to sustainable practices highlight its role as a catalyst for progress and a beacon for future technological advancements.

Datasheet PDF

AD590 Datasheets:

AD590 Datasheet.pdf

Frequently Asked Questions [FAQ]

1. What are the characteristics of AD590 temperature sensor?

The AD590 sensor is acclaimed for its precise temperature measurements, ideal for remote and industrial settings. Its swift response facilitates timely data collection and minimal calibration reduces maintenance, offering ease in hard-to-access locations.

2. What is the difference between AD590 and PT100?

Both sensors, the AD590 and PT100, cater to distinct needs, each designed for specific processing. The AD590 produces a current reflecting temperature changes, simplifying digital integration, while the PT100's resistance shifts capture temperature variations with sensitivity. You may opt for the AD590 in electronic applications, whereas the PT100 is favored for its durability in challenging industrial conditions. The selection depends on system demands and environmental considerations.

3. Is AD590 a thermocouple or a thermal resistance?

The AD590 is a unique current-based sensor, distinct from standard thermocouples or thermal resistors. Its design eliminates the need for reference junctions or complex adjustments, making deployment more straightforward. This efficiency is beneficial in projects that prioritize time and resource management. The AD590 showcases the shift in sensor technology towards more streamlined and adaptable solutions.