AD7247JRZ

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital-to-Analog Converter (DAC)
• Characteristics: High-resolution, low-power consumption
• Package: 24-pin plastic package
• Essence: Converts digital signals into analog voltages
• Packaging/Quantity: Available in reels of 250 units

Specifications

• Resolution: 12 bits
• Number of Channels: 1
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Output Voltage Range: 0V to Vref
• Power Consumption: 0.6mW (typical)

Detailed Pin Configuration

The AD7247JRZ has a total of 24 pins. The pin configuration is as follows:

1. VDD: Positive power supply
2. VREF: Reference voltage input
3. AGND: Analog ground
4. DGND: Digital ground
5. DB11: Data bit 11
6. DB10: Data bit 10
7. DB9: Data bit 9
8. DB8: Data bit 8
9. DB7: Data bit 7
10. DB6: Data bit 6
11. DB5: Data bit 5
12. DB4: Data bit 4
13. DB3: Data bit 3
14. DB2: Data bit 2
15. DB1: Data bit 1
16. DB0: Data bit 0
17. CS: Chip select input
18. WR: Write control input
19. RD: Read control input
20. LDAC: Load DAC input
21. REFOUT: Reference output
22. OUT: Analog output
23. REFIN: Reference input
24. VSS: Negative power supply

Functional Features

• High-resolution DAC with 12-bit resolution
• Low-power consumption for energy-efficient applications
• Wide operating voltage range allows flexibility in power supply selection
• Single-channel output for precise analog voltage generation
• On-chip reference voltage generator simplifies system design

Advantages and Disadvantages

Advantages

• High resolution provides accurate analog voltage outputs
• Low power consumption extends battery life in portable devices
• Wide operating voltage range allows compatibility with various systems
• Simplified system design with on-chip reference voltage generator

Disadvantages

• Limited to single-channel output, not suitable for multi-channel applications
• Requires external components for proper operation (e.g., reference voltage)

Working Principles

The AD7247JRZ is a digital-to-analog converter that converts digital signals into corresponding analog voltages. It utilizes a 12-bit resolution to provide high accuracy in the conversion process. The input digital data is processed internally and converted into an analog voltage output.

The device operates by receiving digital data through its input pins (DB11 to DB0). The chip select (CS) pin enables the device, while the write (WR) and read (RD) control pins initiate the conversion process. The load DAC (LDAC) pin allows for simultaneous updating of multiple DACs in a multi-DAC system.

The AD7247JRZ also features an on-chip reference voltage generator, which simplifies the system design by providing a stable reference voltage (VREF). This eliminates the need for an external reference voltage source.

Detailed Application Field Plans

The AD7247JRZ is commonly used in various applications that require precise analog voltage generation. Some of the typical application fields include:

1. Industrial Automation: Control systems, process monitoring, and instrumentation.
2. Test and Measurement Equipment: Signal generation, waveform synthesis, and calibration.
3. Audio Systems: Digital audio processing, volume control, and equalization.
4. Communication Systems: Modulation, demodulation, and signal conditioning.
5. Medical Devices: Patient monitoring, diagnostic equipment, and imaging systems.

Detailed and Complete Alternative Models

1. AD5621: 12-bit DAC with dual-channel output
2. AD5660: 16-bit DAC with single-channel output
3. AD5755: 16-bit DAC with multiple-channel output
4. AD5766: 18-bit DAC with single-channel output
5. AD5791: 20-bit DAC with single-channel output

These alternative models offer different resolutions, channel configurations, and features to suit specific application requirements.

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