REF3312

series introduction

# REF3312 Product Series Introduction

## 1. Overview
The REF3312 product series is a high - performance voltage reference solution designed to meet the demanding requirements of a wide range of electronic applications. These voltage references offer exceptional accuracy, low noise, and excellent temperature stability, making them an ideal choice for precision measurement, data acquisition, and control systems.

## 2. Key Features

### 2.1 High Accuracy
- The REF3312 series provides a high - level of output voltage accuracy. With a typical initial accuracy of ±0.1%, it ensures that the output voltage remains very close to the specified value right from the start. This high accuracy is crucial in applications where precise voltage levels are required, such as in analog - to - digital converters (ADCs) and digital - to - analog converters (DACs). For example, in a high - resolution ADC, a precise voltage reference is necessary to accurately convert analog signals into digital values, and the REF3312 can provide the stable and accurate voltage needed for this conversion.

### 2.2 Low Noise
- Low output noise is another significant feature of the REF3312 series. The devices have a very low noise density, typically in the range of a few microvolts per square root of hertz. This low noise characteristic is essential in applications where small signal detection is involved. For instance, in medical instrumentation like electrocardiogram (ECG) monitors, low - noise voltage references are required to accurately measure the weak electrical signals generated by the heart without introducing additional noise that could distort the measurement.

### 2.3 Excellent Temperature Stability
- The REF3312 series offers outstanding temperature stability. It has a low temperature coefficient, which means that the output voltage changes very little over a wide temperature range. This is important in applications that operate in harsh environmental conditions. For example, in automotive electronics, where the temperature can vary significantly from extremely cold to very hot, a voltage reference with good temperature stability is necessary to ensure the reliable operation of various systems such as engine control units and sensor interfaces.

### 2.4 Low Power Consumption
- These voltage references are designed to consume very low power. This makes them suitable for battery - powered applications where power efficiency is a critical factor. For example, in portable medical devices or wireless sensor nodes, the low power consumption of the REF3312 series helps to extend the battery life, reducing the frequency of battery replacements and improving the overall usability of the device.

### 2.5 Small Package Size
- The REF3312 series is available in small package sizes, such as SOT - 23 and TSOT - 23. The small form factor allows for easy integration into compact circuit boards, making it suitable for applications with limited board space, such as wearable devices and handheld test equipment.

## 3. Technical Specifications

### 3.1 Output Voltage
- The REF3312 series typically offers a fixed output voltage of 1.2V. This specific output voltage is commonly used in many electronic circuits, especially in systems that require a stable and low - voltage reference for biasing, signal conditioning, or as a reference for ADCs and DACs.

### 3.2 Supply Voltage Range
- It can operate over a wide supply voltage range, usually from 2.7V to 5.5V. This wide supply voltage range provides flexibility in different power supply configurations, allowing the device to be used in a variety of systems with different power sources.

### 3.3 Load Regulation
- The load regulation of the REF3312 series is very good. It can maintain a stable output voltage even when the load current changes. For example, it can typically maintain the output voltage within a few millivolts when the load current varies

Images for reference

SOT-23-3

DCK-3-PDSO Pkg 4093553-2

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Datasheets

• REF3312,18,20,25,30,33
• PDF 2
• PDF 3

Partlist