AD7789BRMZ

Product Overview

Category

AD7789BRMZ belongs to the category of analog-to-digital converters (ADCs).

Use

This product is primarily used for converting analog signals into digital data, making it suitable for a wide range of applications in various industries.

Characteristics

• High precision: AD7789BRMZ offers high-resolution conversion, ensuring accurate and reliable digital representation of analog signals.
• Low power consumption: The device is designed to operate efficiently with minimal power consumption, making it suitable for battery-powered applications.
• Small package size: AD7789BRMZ comes in a compact package, allowing for easy integration into space-constrained designs.
• Wide input voltage range: The ADC supports a broad range of input voltages, enabling flexibility in signal acquisition.

Package

AD7789BRMZ is available in a miniature 10-lead MSOP (Micro Small Outline Package), which provides excellent thermal performance and ease of handling during assembly.

Essence

The essence of AD7789BRMZ lies in its ability to accurately convert analog signals into digital form, facilitating further processing and analysis.

Packaging/Quantity

The product is typically packaged in reels or tubes, with each containing a specific quantity of AD7789BRMZ units. The exact quantity may vary depending on the supplier and customer requirements.

Specifications

• Resolution: 16 bits
• Input Voltage Range: ±Vref
• Conversion Rate: Up to 4.8 kSPS (thousand samples per second)
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage: 2.7V to 5.25V
• Interface: SPI (Serial Peripheral Interface)

Detailed Pin Configuration

1. VDD: Power supply input
2. VREF: Reference voltage input
3. AGND: Analog ground
4. AIN: Analog input
5. DVDD: Digital power supply input
6. DGND: Digital ground
7. SCLK: Serial clock input
8. DIN: Serial data input
9. DOUT: Serial data output
10. CS: Chip select input

Functional Features

• High-resolution conversion: AD7789BRMZ offers 16-bit resolution, ensuring precise digital representation of analog signals.
• Low noise performance: The ADC incorporates advanced noise reduction techniques, resulting in accurate and reliable data acquisition even in noisy environments.
• Programmable gain amplifier (PGA): The device includes a PGA that allows for amplification of weak input signals, enhancing the overall sensitivity and dynamic range.
• Flexible interface options: AD7789BRMZ supports SPI communication protocol, enabling easy integration with various microcontrollers and digital systems.

Advantages and Disadvantages

Advantages

• High precision and accuracy
• Low power consumption
• Compact package size
• Wide input voltage range
• Excellent noise performance

Disadvantages

• Limited to SPI interface only
• Relatively higher cost compared to lower-resolution ADCs

Working Principles

AD7789BRMZ operates based on the successive approximation register (SAR) architecture. It utilizes an internal reference voltage and a programmable gain amplifier to convert analog signals into digital form. The SAR algorithm compares the input voltage against a series of binary-weighted voltages until the most accurate digital representation is achieved.

Detailed Application Field Plans

AD7789BRMZ finds applications in various fields, including but not limited to: - Industrial automation - Medical devices - Test and measurement equipment - Data acquisition systems - Process control systems

Detailed and Complete Alternative Models

1. AD7790: Similar to AD7789BRMZ, this model offers 24-bit resolution and additional features such as on-chip temperature sensor and current sources.
2. ADS1115: This 16-bit ADC provides a higher sampling rate and offers both I2C and SPI interfaces for increased flexibility in system integration.
3. MCP3421: A low-cost 18-bit ADC with programmable gain amplifier, suitable for applications where cost is a primary concern.

(Note: The above alternative models are provided as examples and not an exhaustive list.)

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