REF194ES

Precision micropower 4.5V voltage references in 8-pin SOIC packages

Manufacturer: ['rochester', 'analog-devices']

series introduction

# REF194ES Product Series: Precision Voltage References Redefined

## Introduction
In the dynamic landscape of electronic design, the need for accurate and stable voltage references is paramount. The REF194ES product series emerges as a game - changer, offering a comprehensive solution for a wide range of applications that demand high - precision voltage regulation. This series is engineered to meet the rigorous requirements of modern electronic systems, providing designers with a reliable and efficient option for their voltage reference needs.

## Key Features

### High Precision
The REF194ES series is renowned for its exceptional precision. With initial voltage accuracies as low as ±0.1%, these voltage references ensure that the output voltage remains extremely close to the specified value. This high level of accuracy is crucial in applications such as data acquisition systems, where even the slightest deviation in voltage can lead to significant errors in measurement. For example, in a high - resolution analog - to - digital converter (ADC), a precise voltage reference is essential to accurately convert analog signals into digital values.

### Low Temperature Coefficient
Temperature variations can have a profound impact on the performance of voltage references. The REF194ES series addresses this challenge with its low temperature coefficient. These devices are designed to maintain a stable output voltage over a wide temperature range, typically with a temperature coefficient of less than 10 ppm/°C. This means that even in harsh environments where the temperature fluctuates significantly, the output voltage of the REF194ES remains relatively constant, ensuring consistent performance of the overall system.

### Low Noise
Noise is another critical factor in voltage references, especially in sensitive applications such as audio systems and medical devices. The REF194ES series features low output noise, which helps to minimize interference and distortion in the system. The low noise characteristics of these voltage references ensure that the output voltage is clean and stable, resulting in improved signal quality and reduced error in the final output.

### Wide Output Voltage Range
The REF194ES series offers a wide range of output voltages, typically from 1.225 V to 5.0 V. This flexibility allows designers to choose the appropriate output voltage for their specific application. Whether it's a low - voltage microcontroller or a high - voltage power supply, the REF194ES series can provide the required voltage reference, making it suitable for a diverse range of electronic systems.

### Low Power Consumption
In today's energy - conscious world, power consumption is a major consideration in electronic design. The REF194ES series is designed with low power consumption in mind. These devices operate with a very low quiescent current, typically in the range of a few microamperes. This low power consumption not only helps to extend the battery life in portable devices but also reduces the overall power dissipation in the system, leading to improved energy efficiency.

## Applications

### Industrial Automation
In industrial automation systems, precise voltage references are essential for accurate control and monitoring. The REF194ES series can be used in programmable logic controllers (PLCs), motor control units, and sensor interfaces. For example, in a motor control application, the precise voltage reference ensures that the control signals are accurate, resulting in smooth and efficient motor operation.

### Test and Measurement Equipment
Test and measurement equipment, such as oscilloscopes, multimeters, and spectrum analyzers, require high - precision voltage references to ensure accurate measurements. The REF194ES series provides the necessary accuracy and stability for these applications, allowing for reliable and repeatable measurements.

### Medical Devices
Medical devices, such as patient monitors, infusion pumps, and diagnostic equipment, demand the highest level of precision and reliability. The REF194ES series meets these requirements with its high - precision voltage references, low noise, and wide temperature range. These devices ensure that medical devices operate accurately and safely, providing reliable information for healthcare

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REF194ES
REF194ES-REEL
REF194ESZ
REF194ESZ-REEL