REF191 (8)
REF191 is available from Analog Devices at Xecor. Designed for precision voltage referencing, the REF191 series offers exceptional performance with features such as high initial accuracy (±2 mV max), a low temperature coefficient (5 ppm/°C max), and low supply current (45 µA max). Available in an 8-SOIC package, it is ideal for applications requiring stable and accurate voltage references, such as industrial automation, telecommunications, and automotive systems. Whether used in data acquisition systems, portable instrumentation, or precision power supplies, this series ensures reliability, efficiency, and scalability for demanding applications. Xecor is an authorized distributor for Analog Devices Please view our extensive selection of the REF191 series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| REF191ESZ | High Accuracy 2.048V Low Voltage Reference | SOIC-8 | 7,095 | |
| REF191ES | Voltage reference IC | SOIC-8 | 7,138 | |
| REF191GSZ | V-Ref Precision 2.048V 30mA 8-Pin SOIC N Tube | SOIC-8 | 6,413 | |
| REF191GS | French Electronic Distributor since 1988 | 8-SOIC | 9,659 | |
| REF191GSZ-REEL | Ensure stability with 2.048V output and 30mA current | SOIC-8 | 5,435 | |
| REF191ESZ-REEL | V-Ref Precision 2.048V 30mA 8-Pin SOIC N T/R | SOIC-8 | 2,987 | |
| REF191TRZ-EP | Micro-sized voltage reference for precise power management | SOIC-8 | 2,663 | |
| REF191TRZ-EP-RL | Precision micropower reference with low dropout voltage | SOIC-8 | 5,854 |
Key Featrues
High Initial Accuracy (±2 mV Max): The REF191GSZ offers exceptional initial accuracy, ensuring precise voltage references critical for applications requiring stable and reliable voltage levels, such as precision analog-to-digital converters (ADCs) and digital-to-analog converters (DACs). This feature minimizes calibration requirements and enhances overall system performance.
Low Temperature Coefficient (5 ppm/°C Max): With a low temperature coefficient, this voltage reference maintains stable output voltage across a wide temperature range (-40°C to +85°C). This is particularly beneficial for industrial and automotive applications where temperature fluctuations are common, ensuring consistent performance under varying environmental conditions.
Low Supply Current (45 µA Max): The device consumes minimal power, making it ideal for battery-powered and energy-efficient applications. This low supply current extends battery life in portable devices and reduces power consumption in power-sensitive systems.
High Output Current (30 mA): Capable of delivering up to 30 mA of output current, the REF191GSZ can directly drive loads without requiring additional buffering. This feature simplifies circuit design and reduces component count, making it suitable for applications like sensor interfaces and power management systems.
Short-Circuit Protection: The built-in short-circuit protection ensures the device remains operational and undamaged in the event of an output short circuit. This enhances reliability and safety in critical applications, reducing the risk of system failure due to accidental short circuits.
Low Temperature Coefficient (5 ppm/°C Max): With a low temperature coefficient, this voltage reference maintains stable output voltage across a wide temperature range (-40°C to +85°C). This is particularly beneficial for industrial and automotive applications where temperature fluctuations are common, ensuring consistent performance under varying environmental conditions.
Low Supply Current (45 µA Max): The device consumes minimal power, making it ideal for battery-powered and energy-efficient applications. This low supply current extends battery life in portable devices and reduces power consumption in power-sensitive systems.
High Output Current (30 mA): Capable of delivering up to 30 mA of output current, the REF191GSZ can directly drive loads without requiring additional buffering. This feature simplifies circuit design and reduces component count, making it suitable for applications like sensor interfaces and power management systems.
Short-Circuit Protection: The built-in short-circuit protection ensures the device remains operational and undamaged in the event of an output short circuit. This enhances reliability and safety in critical applications, reducing the risk of system failure due to accidental short circuits.
Applications
Precision Data Acquisition Systems: The REF191GSZ is ideal for use in precision data acquisition systems where a stable and accurate voltage reference is required. Its low temperature coefficient and high initial accuracy ensure reliable performance in environments with varying temperatures, making it suitable for industrial and scientific measurement applications.
Portable Medical Devices: The REF191GSZ can be used in portable medical devices such as blood glucose meters or portable ECG monitors. Its low supply current and high output current capability make it suitable for battery-powered applications, ensuring long operational life and accurate readings in critical healthcare scenarios.
Automotive Sensor Interfaces: The REF191GSZ is well-suited for automotive sensor interfaces, such as those used in tire pressure monitoring systems (TPMS) or engine control units (ECUs). Its ability to operate over a wide temperature range and its high output current make it reliable for harsh automotive environments.
Energy Management Systems: The REF191GSZ can be integrated into energy management systems for renewable energy applications, such as solar inverters or battery management systems. Its precision voltage reference ensures accurate monitoring and control of energy flow, enhancing the efficiency and reliability of the system.
Portable Medical Devices: The REF191GSZ can be used in portable medical devices such as blood glucose meters or portable ECG monitors. Its low supply current and high output current capability make it suitable for battery-powered applications, ensuring long operational life and accurate readings in critical healthcare scenarios.
Automotive Sensor Interfaces: The REF191GSZ is well-suited for automotive sensor interfaces, such as those used in tire pressure monitoring systems (TPMS) or engine control units (ECUs). Its ability to operate over a wide temperature range and its high output current make it reliable for harsh automotive environments.
Energy Management Systems: The REF191GSZ can be integrated into energy management systems for renewable energy applications, such as solar inverters or battery management systems. Its precision voltage reference ensures accurate monitoring and control of energy flow, enhancing the efficiency and reliability of the system.
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