AD633JRZ

series introduction

# AD633JRZ Product Series Introduction

## 1. Overview
The AD633JRZ belongs to a high - performance analog multiplier product series developed by Analog Devices. This series is designed to meet a wide range of applications in the fields of signal processing, instrumentation, and communication systems. With its excellent performance characteristics and reliable operation, the AD633JRZ has become a popular choice among engineers and designers.

## 2. Key Features

### 2.1 High - Precision Multiplication
The core function of the AD633JRZ is to perform accurate analog multiplication. It can multiply two input signals with high precision, typically achieving a multiplication accuracy of up to ±0.5% under normal operating conditions. This high - precision multiplication is crucial in applications such as amplitude modulation, power measurement, and signal mixing, where small errors can lead to significant performance degradation.

### 2.2 Wide Input Voltage Range
It supports a relatively wide input voltage range. The input signals can typically range from - 10V to +10V, which allows it to handle a variety of signal levels without the need for extensive signal conditioning. This wide input range makes it suitable for use in systems where the input signals may vary significantly in amplitude, such as in some communication receivers and test and measurement equipment.

### 2.3 Low Distortion
The AD633JRZ is designed to minimize distortion in the output signal. It has a low total harmonic distortion (THD), usually less than 0.1% at a specified frequency and input level. Low distortion is essential in applications where the integrity of the output signal is critical, such as in audio processing and high - fidelity communication systems.

### 2.4 High - Speed Operation
This product series offers relatively high - speed operation. It can handle input signals with frequencies up to several megahertz, enabling it to be used in high - frequency applications such as radio frequency (RF) signal processing and high - speed data acquisition systems.

### 2.5 Single - Supply or Dual - Supply Operation
The AD633JRZ can be operated with either a single - supply or a dual - supply configuration. This flexibility allows designers to choose the power supply scheme that best suits their specific application requirements. For example, in battery - powered portable devices, a single - supply operation may be preferred to simplify the power supply design and reduce power consumption.

## 3. Functional Block Diagram and Working Principle

### 3.1 Block Diagram
The AD633JRZ consists of several key functional blocks, including input amplifiers, a multiplier core, and an output amplifier. The input amplifiers are responsible for conditioning the input signals to ensure they are in the appropriate format and level for the multiplier core. The multiplier core performs the actual multiplication operation on the two input signals. The output amplifier then amplifies the multiplied signal to the desired output level and provides the necessary impedance matching.

### 3.2 Working Principle
When two input signals, typically referred to as X and Y, are applied to the AD633JRZ, they are first processed by the input amplifiers. The amplified signals are then fed into the multiplier core, where they are multiplied together according to the mathematical operation \(Z = XY/10\) (in the standard configuration). The output of the multiplier core is then further processed by the output amplifier to generate the final output signal Z.

## 4. Applications

### 4.1 Signal Processing
- **Amplitude Modulation (AM)**: In AM radio transmitters, the AD633JRZ can be used to multiply the audio signal (modulating signal) with the carrier signal to generate the amplitude - modulated output signal.
- **Signal Mixing**: It is commonly used in communication systems for signal mixing operations, where two or

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Datasheets

• AD633
• PDF 2

Partlist