AD7767BRUZ-2

Product Overview

Category

The AD7767BRUZ-2 belongs to the category of analog-to-digital converters (ADCs).

Use

This ADC is commonly used in various applications that require high-resolution and high-speed data conversion, such as industrial automation, medical equipment, and scientific instrumentation.

Characteristics

• High resolution: The AD7767BRUZ-2 offers a resolution of up to 24 bits, ensuring accurate conversion of analog signals.
• High speed: With a maximum sampling rate of 256 kSPS (thousand samples per second), it enables fast data acquisition.
• Low noise: The ADC provides excellent signal-to-noise ratio, resulting in precise and reliable measurements.
• Low power consumption: It operates at low power levels, making it suitable for battery-powered devices.
• Wide input voltage range: The ADC can handle a wide range of input voltages, accommodating various signal levels.
• Integrated features: It includes built-in programmable gain amplifiers and digital filters for enhanced flexibility.

Package and Quantity

The AD7767BRUZ-2 is available in a small outline integrated circuit (SOIC) package. It is typically sold in reels containing a quantity of 250 units.

Specifications

• Resolution: Up to 24 bits
• Sampling Rate: Up to 256 kSPS
• Input Voltage Range: ±VREF
• Power Supply: +5V
• Operating Temperature Range: -40°C to +85°C
• Interface: Serial Peripheral Interface (SPI)

Pin Configuration

The AD7767BRUZ-2 has a total of 28 pins. Here is the detailed pin configuration:

1. VREFP: Positive reference voltage input
2. VREFN: Negative reference voltage input
3. AGND: Analog ground
4. DVDD: Digital power supply
5. DGND: Digital ground
6. SCLK: Serial clock input
7. SDI: Serial data input
8. SDO: Serial data output
9. CS: Chip select input
10. RESET: Reset input
11. MISO: Master In Slave Out (SPI interface)
12. MOSI: Master Out Slave In (SPI interface)
13. SCK: Serial Clock (SPI interface)
14. DOUT/RDY: Data output/Ready signal 15-28. Analog input channels

Functional Features

• Programmable Gain Amplifiers (PGAs): The AD7767BRUZ-2 includes PGAs that allow the user to adjust the gain of the input signal, providing flexibility in different applications.
• Digital Filters: It incorporates digital filters to remove unwanted noise and enhance the quality of the converted data.
• Overrange Detection: The ADC can detect when the input signal exceeds its specified range, ensuring accurate measurements and preventing signal distortion.
• Power-Down Modes: It offers power-down modes to conserve energy when the device is not actively converting signals.

Advantages and Disadvantages

Advantages

• High resolution and accuracy
• Fast sampling rate
• Low noise performance
• Wide input voltage range
• Integrated features for enhanced flexibility

Disadvantages

• Relatively higher cost compared to lower-end ADCs
• Requires external components for proper operation

Working Principles

The AD7767BRUZ-2 operates based on the principle of analog-to-digital conversion. It converts continuous analog signals into discrete digital values using a combination of sample-and-hold circuitry, quantization, and encoding techniques. The input analog signal is sampled at a high rate, and each sample is quantized into a digital value. These digital values are then processed further to obtain the desired output format.

Detailed Application Field Plans

The AD7767BRUZ-2 finds applications in various fields, including: 1. Industrial Automation: Used for precise measurement and control of industrial processes. 2. Medical Equipment: Enables accurate data acquisition in medical devices such as patient monitors and diagnostic instruments. 3. Scientific Instrumentation: Suitable for scientific research and experimentation that requires high-resolution data conversion.

Alternative Models

Here are some alternative models that offer similar functionality to the AD7767BRUZ-2: - AD7768-1 - AD7769 - ADS1256 - LTC2440

These alternatives can be considered based on specific requirements and cost considerations.

In conclusion, the AD7767BRUZ-2 is a high-performance analog-to-digital converter with excellent resolution, speed, and low noise characteristics. It finds applications in diverse fields, offering precise data conversion capabilities.