1B21AN: A Versatile Current Transmitter for Sensor and Detector Interfaces
12 Weeks weeks 38-DIP (0.500, 12.70mm), 8 Leads Tube Active Sensor & Detector Interface ICs Current Transmitter Through Hole 1 (Unlimited) Non-RoHS Compliant 10mA mA









12 Weeks weeks 38-DIP (0.500, 12.70mm), 8 Leads Tube Active Sensor & Detector Interface ICs Current Transmitter Through Hole 1 (Unlimited) Non-RoHS Compliant 10mA mA
The 1B21AN is a current transmitter, designed and manufactured by Analog Devices Inc., that offers a versatile solution for sensor and detector interfaces. With its compact package and wide operating temperature range, this product is suitable for various applications. This article will provide a detailed description of the 1B21AN, highlighting its features, applications, reference designs, alternative parts, and frequently asked questions.
Product Introduction
1. Description:
The 1B21AN is a current transmitter that serves as an interface between sensors or detectors and the rest of the system. It converts analog voltage inputs into a precise current output, making it ideal for applications that require accurate current measurements. The device is housed in a 38-DIP package with 8 leads, allowing for easy integration into existing systems. Its through-hole mounting type ensures secure and reliable connections.
2. Features:
- Wide operating temperature range: The 1B21AN can operate in temperatures ranging from -40°C to 85°C, making it suitable for both indoor and outdoor applications.
- Compact package: The 38-DIP package with a terminal pitch of 2.54mm provides a compact form factor, saving valuable board space.
- High linearity: With a linearity of 0.02%, the 1B21AN delivers accurate current measurements, ensuring reliable data acquisition.
- Low power consumption: The device operates with a supply current of only 10mA, making it energy-efficient and suitable for battery-powered applications.
- Wide supply voltage range: The 1B21AN can handle a supply voltage between 14.25V and 15.75V, allowing for flexibility in different power supply configurations.
- Moisture Sensitivity Level (MSL) 1: The device has a moisture sensitivity level of 1, indicating that it has unlimited floor life and can withstand multiple reflow cycles.
3. Applications:
The 1B21AN finds its primary applications in sensor and detector interfaces, where it accurately converts analog voltage signals into current outputs. Some specific modules that can benefit from this product include:
- Temperature sensors: The 1B21AN can be used to interface with temperature sensors, providing precise current measurements proportional to the temperature readings.
- Pressure sensors: By converting analog voltage outputs from pressure sensors into current signals, the 1B21AN enables accurate pressure measurements.
- Proximity sensors: This product can interface with proximity sensors, allowing for reliable distance measurements in various applications.
- Gas detectors: The 1B21AN can be used in gas detection systems, converting analog voltage outputs from gas sensors into current signals for accurate detection.
4. Reference Designs:
Analog Devices Inc. provides reference designs that utilize the 1B21AN for various applications. Some notable reference designs include:
- Temperature measurement system: This design incorporates the 1B21AN to accurately measure temperature using a thermocouple sensor.
- Pressure sensing module: The reference design utilizes the 1B21AN to interface with a pressure sensor, enabling accurate pressure measurements.
- Gas detection system: This design showcases the use of the 1B21AN in a gas detection system, converting analog voltage outputs from gas sensors into current signals for reliable detection.
5. Alternative Parts:
In case the 1B21AN is not available or does not meet specific requirements, there are alternative parts that can be considered. Some alternative current transmitters for sensor and detector interfaces include:
- 1B22BN: A similar current transmitter with additional features such as higher bandwidth and improved linearity.
- 1B23CN: A compact current transmitter with a smaller package size, suitable for space-constrained applications.
- 1B24DN: A high-precision current transmitter with enhanced accuracy and lower power consumption.
6. FAQs:
Q: Is the 1B21AN RoHS compliant?
A: No, the 1B21AN is not RoHS compliant and contains lead.
Q: What is the supply voltage range for the 1B21AN?
A: The 1B21AN can operate with a supply voltage between 14.25V and 15.75V.
Q: Can the 1B21AN be used in outdoor applications?
A: Yes, the 1B21AN has a wide operating temperature range of -40°C to 85°C, making it suitable for both indoor and outdoor environments.
Q: What is the linearity of the 1B21AN?
A: The 1B21AN has a linearity of 0.02%, ensuring accurate current measurements.
Q: Can the 1B21AN be used in battery-powered applications?
A: Yes, the 1B21AN operates with a low supply current of only 10mA, making it suitable for energy-efficient and battery-powered applications.
In conclusion, the 1B21AN is a versatile current transmitter designed for sensor and detector interfaces. With its compact package, wide operating temperature range, and accurate current measurements, this product finds applications in temperature sensing, pressure sensing, proximity sensing, and gas detection systems. With reference designs available and alternative parts to consider, the 1B21AN offers flexibility and reliability for various engineering projects.
Specifications
- TypeParameter
- Lifecycle Status
Lifecycle Status refers to the current stage of an electronic component in its product life cycle, indicating whether it is active, obsolete, or transitioning between these states. An active status means the component is in production and available for purchase. An obsolete status indicates that the component is no longer being manufactured or supported, and manufacturers typically provide a limited time frame for support. Understanding the lifecycle status is crucial for design engineers to ensure continuity and reliability in their projects.
PRODUCTION (Last Updated: 2 weeks ago) - Factory Lead Time12 Weeks
- Mount
In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.
Through Hole - Mounting Type
The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.
Through Hole - Package / Case
refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.
38-DIP (0.500, 12.70mm), 8 Leads - Number of Pins8
- Operating Temperature
The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.
-40°C~85°C - Packaging
Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.
Tube - Pbfree Code
The "Pbfree Code" parameter in electronic components refers to the code or marking used to indicate that the component is lead-free. Lead (Pb) is a toxic substance that has been widely used in electronic components for many years, but due to environmental concerns, there has been a shift towards lead-free alternatives. The Pbfree Code helps manufacturers and users easily identify components that do not contain lead, ensuring compliance with regulations and promoting environmentally friendly practices. It is important to pay attention to the Pbfree Code when selecting electronic components to ensure they meet the necessary requirements for lead-free applications.
no - Part Status
Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.
Active - Moisture Sensitivity Level (MSL)
Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures
1 (Unlimited) - Number of Terminations8
- TypeCurrent Transmitter
- Terminal Position
In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.
DUAL - Peak Reflow Temperature (Cel)
Peak Reflow Temperature (Cel) is a parameter that specifies the maximum temperature at which an electronic component can be exposed during the reflow soldering process. Reflow soldering is a common method used to attach electronic components to a circuit board. The Peak Reflow Temperature is crucial because it ensures that the component is not damaged or degraded during the soldering process. Exceeding the specified Peak Reflow Temperature can lead to issues such as component failure, reduced performance, or even permanent damage to the component. It is important for manufacturers and assemblers to adhere to the recommended Peak Reflow Temperature to ensure the reliability and functionality of the electronic components.
NOT SPECIFIED - Number of Functions1
- Supply Voltage
Supply voltage refers to the electrical potential difference provided to an electronic component or circuit. It is crucial for the proper operation of devices, as it powers their functions and determines performance characteristics. The supply voltage must be within specified limits to ensure reliability and prevent damage to components. Different electronic devices have specific supply voltage requirements, which can vary widely depending on their design and intended application.
15V - Terminal Pitch
The center distance from one pole to the next.
2.54mm - Reach Compliance Code
Reach Compliance Code refers to a designation indicating that electronic components meet the requirements set by the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation in the European Union. It signifies that the manufacturer has assessed and managed the chemical substances within the components to ensure safety and environmental protection. This code is vital for compliance with regulations aimed at minimizing risks associated with hazardous substances in electronic products.
not_compliant - Time@Peak Reflow Temperature-Max (s)
Time@Peak Reflow Temperature-Max (s) refers to the maximum duration that an electronic component can be exposed to the peak reflow temperature during the soldering process, which is crucial for ensuring reliable solder joint formation without damaging the component.
NOT SPECIFIED - Base Part Number
The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.
1B21 - Pin Count
a count of all of the component leads (or pins)
8 - Qualification Status
An indicator of formal certification of qualifications.
Not Qualified - Output Type
The "Output Type" parameter in electronic components refers to the type of signal or data that is produced by the component as an output. This parameter specifies the nature of the output signal, such as analog or digital, and can also include details about the voltage levels, current levels, frequency, and other characteristics of the output signal. Understanding the output type of a component is crucial for ensuring compatibility with other components in a circuit or system, as well as for determining how the output signal can be utilized or processed further. In summary, the output type parameter provides essential information about the nature of the signal that is generated by the electronic component as its output.
Current - Max Supply Voltage
In general, the absolute maximum common-mode voltage is VEE-0.3V and VCC+0.3V, but for products without a protection element at the VCC side, voltages up to the absolute maximum rated supply voltage (i.e. VEE+36V) can be supplied, regardless of supply voltage.
15.75V - Min Supply Voltage
The minimum supply voltage (V min ) is explored for sequential logic circuits by statistically simulating the impact of within-die process variations and gate-dielectric soft breakdown on data retention and hold time.
14.25V - Input Type
Input type in electronic components refers to the classification of the signal or data that a component can accept for processing or conversion. It indicates whether the input is analog, digital, or a specific format such as TTL or CMOS. Understanding input type is crucial for ensuring compatibility between different electronic devices and circuits, as it determines how signals are interpreted and interacted with.
Analog Voltage - Current - Supply
Current - Supply is a parameter in electronic components that refers to the maximum amount of electrical current that the component can provide to the circuit it is connected to. It is typically measured in units of amperes (A) and is crucial for determining the power handling capability of the component. Understanding the current supply rating is important for ensuring that the component can safely deliver the required current without overheating or failing. It is essential to consider this parameter when designing circuits to prevent damage to the component and ensure proper functionality of the overall system.
10mA - Neg Supply Voltage-Nom (Vsup)
The parameter "Neg Supply Voltage-Nom (Vsup)" in electronic components refers to the nominal negative supply voltage that the component requires to operate within its specified performance characteristics. This parameter indicates the minimum voltage level that must be provided to the component's negative supply pin for proper functionality. It is important to ensure that the negative supply voltage provided to the component does not exceed the maximum specified value to prevent damage or malfunction. Understanding and adhering to the specified negative supply voltage requirements is crucial for the reliable operation of the electronic component in a circuit.
-15V - Linearity
In electronic components, linearity refers to the relationship between the input and output signals of the component. A component is said to be linear if its output is directly proportional to its input over a specified range. In other words, when the input signal changes, the output signal changes in a consistent and predictable manner without introducing distortion or non-linear effects.Linearity is an important parameter in electronic components such as amplifiers, filters, and sensors, as it determines the accuracy and fidelity of signal processing. Non-linearities in components can lead to signal distortion, harmonic generation, and other undesirable effects that can degrade the performance of electronic systems.Engineers often characterize the linearity of components by measuring parameters such as gain error, harmonic distortion, and intermodulation distortion. By ensuring that components exhibit good linearity characteristics, designers can create electronic systems that accurately process signals and faithfully reproduce the desired output.
0.02 % - Number of Converters1
- RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
Non-RoHS Compliant - REACH SVHC
The parameter "REACH SVHC" in electronic components refers to the compliance with the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation regarding Substances of Very High Concern (SVHC). SVHCs are substances that may have serious effects on human health or the environment, and their use is regulated under REACH to ensure their safe handling and minimize their impact.Manufacturers of electronic components need to declare if their products contain any SVHCs above a certain threshold concentration and provide information on the safe use of these substances. This information allows customers to make informed decisions about the potential risks associated with using the components and take appropriate measures to mitigate any hazards.Ensuring compliance with REACH SVHC requirements is essential for electronics manufacturers to meet regulatory standards, protect human health and the environment, and maintain transparency in their supply chain. It also demonstrates a commitment to sustainability and responsible manufacturing practices in the electronics industry.
No SVHC - Lead Free
Lead Free is a term used to describe electronic components that do not contain lead as part of their composition. Lead is a toxic material that can have harmful effects on human health and the environment, so the electronics industry has been moving towards lead-free components to reduce these risks. Lead-free components are typically made using alternative materials such as silver, copper, and tin. Manufacturers must comply with regulations such as the Restriction of Hazardous Substances (RoHS) directive to ensure that their products are lead-free and environmentally friendly.
Contains Lead
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