AD9767AST

series introduction

# AD9767AST Product Series Introduction

## 1. Overview
The AD9767AST is a high - performance product series within Analog Devices' portfolio of digital - to - analog converters (DACs). These DACs are designed to meet the demanding requirements of a wide range of applications, from communication systems to industrial control and test equipment. With their advanced features and excellent performance characteristics, the AD9767AST series offers reliable and accurate analog signal generation from digital input data.

## 2. Key Features

### 2.1 High - Speed Performance
- The AD9767AST series supports high update rates, enabling it to handle fast - changing digital signals. This high - speed operation is crucial in applications such as wireless communication systems, where rapid signal modulation and demodulation are required. For example, in 5G base stations, the ability to quickly convert digital baseband signals to analog RF signals is essential for efficient data transmission.
- It has a high - speed serial interface that allows for seamless integration with modern digital signal processors (DSPs) and field - programmable gate arrays (FPGAs). This interface can transfer data at high rates, reducing latency and improving overall system performance.

### 2.2 High Resolution
- These DACs offer high - resolution conversion, typically with a high number of bits (e.g., 16 - bit resolution). High resolution means that the DAC can represent a large number of discrete analog levels, resulting in more accurate and detailed analog output signals. In audio applications, this high resolution translates into better sound quality, with less quantization noise and more faithful reproduction of the original audio signal.
- The fine - grained resolution also makes the AD9767AST suitable for precision measurement and control applications, where small changes in the analog output need to be accurately represented.

### 2.3 Low Power Consumption
- The AD9767AST series is designed with power efficiency in mind. Low power consumption is beneficial in battery - powered devices, such as portable test equipment and wireless sensors. By consuming less power, these DACs can extend the battery life of the device, reducing the need for frequent battery replacements.
- Additionally, low power operation also helps in reducing heat dissipation, which is important for maintaining the reliability and stability of the overall system, especially in compact and densely packed electronic designs.

### 2.4 Excellent Linearity
- The DACs in the AD9767AST series exhibit excellent linearity, which means that the relationship between the digital input code and the analog output voltage is highly linear. This linearity is crucial for applications where accurate signal representation is required, such as in medical imaging equipment. In ultrasound machines, for example, linear DACs ensure that the electrical signals driving the transducer accurately represent the digital image data, resulting in clear and accurate images.

### 2.5 Integrated Features
- The AD9767AST comes with integrated features such as on - chip reference voltage sources. These integrated references eliminate the need for external reference components, simplifying the circuit design and reducing the overall component count. This not only saves board space but also improves the reliability of the system by reducing the number of potential failure points.
- Some models in the series may also include built - in digital filters, which can be used to shape the output signal and reduce unwanted noise and distortion.

## 3. Applications

### 3.1 Communication Systems
- **Wireless Base Stations**: In 4G and 5G wireless base stations, the AD9767AST is used to convert digital baseband signals to analog RF signals. Its high - speed and high - resolution capabilities ensure accurate signal modulation, which is essential for reliable data transmission over the airwaves.
- **Satellite Communication**: For satellite communication systems, the DACs are used in the up

Images for reference

48-LQFP

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Datasheets

• AD9763,65,67
• PDF 2

Partlist