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.