The REF191ES is a high-precision, low-power voltage reference from Analog Devices Inc., designed to maintain stable output voltage over a wide range of operating conditions. This component is a crucial building block in precision measurement, control systems, and analog-to-digital conversion processes, providing a stable reference voltage that ensures accuracy and consistency in electronic circuits.

Key Features

• High Accuracy: The REF191ES offers an impressive initial accuracy of ±0.1% and ensures minimal deviation over time, making it ideal for critical applications where precision is paramount.
• Low Power Consumption: With a quiescent current of typically 45 μA, this voltage reference is optimized for battery-powered and energy-saving applications, contributing to extended system life and reliability.
• Wide Operating Temperature Range: The device operates effectively across a broad temperature range from -40°C to +125°C, accommodating diverse environmental conditions.
• Low Dropout Voltage: The REF191ES can function with a very low dropout voltage, enhancing performance in systems with limited headroom above the desired output voltage.
• Stable with Capacitive Loads: It is designed to be stable with capacitive loads, making it versatile and easy to integrate into a variety of circuit configurations without additional components.

Applications

The REF191ES is suitable for a wide array of applications, including:

• Precision data acquisition systems
• High-resolution analog-to-digital converters
• Battery-powered equipment
• Industrial and medical instruments
• Portable instrumentation

Technical Specifications

Parameter Value Output Voltage 2.5V Initial Accuracy ±0.1% Temperature Coefficient 10 ppm/°C (max) Quiescent Current 45 μA (typ) Operating Temperature Range -40°C to +125°C

For more detailed information, please refer to the REF191ES datasheet provided by Analog Devices Inc.