AD7228LNZ

Product Overview

Category

AD7228LNZ belongs to the category of digital-to-analog converters (DACs).

Use

It is used to convert digital signals into analog voltages, making it suitable for various applications such as audio and video equipment, instrumentation, and industrial control systems.

Characteristics

• High-resolution: AD7228LNZ offers a resolution of 8 bits, providing precise analog output.
• Low power consumption: It operates at low power, making it energy-efficient.
• Fast settling time: The device has a fast settling time, ensuring quick response in dynamic applications.
• Wide operating voltage range: AD7228LNZ can operate within a wide voltage range, enhancing its versatility.
• Temperature stability: It exhibits excellent temperature stability, ensuring accurate performance across varying environmental conditions.

Package

AD7228LNZ comes in a standard 24-pin PDIP (Plastic Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of AD7228LNZ lies in its ability to convert digital data into corresponding analog voltages with high precision and reliability.

Packaging/Quantity

The device is typically available in reels or tubes, with a quantity of 25 units per reel/tube.

Specifications

• Resolution: 8 bits
• Supply Voltage Range: 4.5V to 16.5V
• Operating Temperature Range: -40°C to +85°C
• Output Voltage Range: 0V to Vref
• DNL (Differential Non-Linearity): ±1 LSB (Least Significant Bit)
• INL (Integral Non-Linearity): ±1 LSB
• Settling Time: 10µs (to ±0.012% of full-scale)

Detailed Pin Configuration

AD7228LNZ follows a standard pin configuration with the following connections:

1. VOUT A
2. VOUT B
3. VOUT C
4. VOUT D
5. VOUT E
6. VOUT F
7. VOUT G
8. VOUT H
9. AGND (Analog Ground)
10. REF IN (Reference Input)
11. DB0 (Data Bit 0)
12. DB1 (Data Bit 1)
13. DB2 (Data Bit 2)
14. DB3 (Data Bit 3)
15. DB4 (Data Bit 4)
16. DB5 (Data Bit 5)
17. DB6 (Data Bit 6)
18. DB7 (Data Bit 7)
19. CS (Chip Select)
20. WR (Write)
21. RD (Read)
22. RS (Reset)
23. VDD (Supply Voltage)
24. DGND (Digital Ground)

Functional Features

• Eight-channel DAC: AD7228LNZ provides eight independent analog output channels.
• Serial interface: It supports a serial interface for easy integration with microcontrollers and other digital systems.
• Power-down mode: The device includes a power-down mode to conserve energy when not in use.
• Internal reference: AD7228LNZ incorporates an internal voltage reference, eliminating the need for an external reference source.

Advantages and Disadvantages

Advantages

• High-resolution output for accurate analog representation.
• Low power consumption for energy efficiency.
• Fast settling time for dynamic applications.
• Wide operating voltage range for versatility.
• Excellent temperature stability for reliable performance.

Disadvantages

• Limited resolution compared to higher-bit DACs.
• Lack of built-in features for advanced signal processing.

Working Principles

AD7228LNZ operates by receiving digital input data and converting it into corresponding analog voltages using an internal digital-to-analog conversion algorithm. The converted analog voltages are then available at the respective output channels.

Detailed Application Field Plans

AD7228LNZ finds applications in various fields, including:

1. Audio equipment: It can be used in audio mixers, amplifiers, and equalizers to convert digital audio signals into analog voltages for accurate sound reproduction.
2. Video equipment: AD7228LNZ is suitable for video signal processing, enabling precise analog representation of digital video signals in devices like video switchers and monitors.
3. Instrumentation: It can be utilized in scientific instruments, data acquisition systems, and test equipment to generate analog control signals based on digital inputs.
4. Industrial control systems: AD7228LNZ can be integrated into industrial automation systems, providing analog control signals for controlling motors, valves, and other industrial processes.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to AD7228LNZ include:

1. AD7302: 8-bit dual-channel DAC with serial interface.
2. MAX522: 8-bit octal DAC with parallel interface.
3. MCP4921: 12-bit single-channel DAC