Overview
The AD7628KPZ-REEL, produced by Analog Devices Inc., is a monolithic dual 8-bit digital-to-analog converter (DAC) known for its excellent DAC-to-DAC matching. This component is part of the AD7628 series and is available in a 20-lead flatpack package. It features separate on-chip latches for each DAC, allowing for easy interface with microprocessors. The device operates from a +12 V to +15 V power supply and is TTL-compatible, making it suitable for a wide range of applications, including audio, graphics, and process control.
Key Specifications
| Specification | Value |
|---|---|
| Number of Bits | 8-bit (each DAC) |
| Package Type | 20-Lead Flatpack |
| Power Supply | +12 V to +15 V |
| Power Dissipation | 20 mW |
| Operating Temperature Range | –40°C to +85°C (Commercial), –40°C to +85°C (Industrial), –55°C to +125°C (Extended) |
| Input High Voltage (VIH) | 2.4 V min |
| Input Low Voltage (VIL) | 0.8 V max |
| Input Current (IIN) | ±1 µA max |
| Input Capacitance (DB0–DB7) | 10 pF max |
| Chip Select to Write Set Up Time (tCS) | 160 ns min |
Key Features
- DAC-to-DAC Matching: Precise matching and tracking between the two DACs, fabricated on the same chip, making it ideal for applications requiring high accuracy.
- Small Package Size: Available in small 20-pin packages, including DIP and SOIC, which enhances board space efficiency.
- Microprocessor Compatibility: Bus compatible with most 8-bit microprocessors such as 6502, 6809, 8085, and Z80.
- Four Quadrant Multiplication: Each DAC offers excellent four quadrant multiplication characteristics with separate reference input and feedback resistor.
- Low Power Dissipation: Operates with a low power dissipation of 20 mW.
Applications
The AD7628KPZ-REEL is versatile and can be used in various applications, including:
- Audio Systems: For precise audio signal processing and conversion.
- Graphics Systems: To generate high-quality graphics signals.
- Process Control Systems: For accurate control and monitoring in industrial processes.
Q & A
- What is the AD7628KPZ-REEL?
The AD7628KPZ-REEL is a monolithic dual 8-bit digital-to-analog converter produced by Analog Devices Inc.
- What package type is the AD7628KPZ-REEL available in?
It is available in a 20-lead flatpack package.
- What is the power supply range for the AD7628KPZ-REEL?
The device operates from a +12 V to +15 V power supply.
- What is the power dissipation of the AD7628KPZ-REEL?
The power dissipation is 20 mW.
- Is the AD7628KPZ-REEL compatible with microprocessors?
Yes, it is bus compatible with most 8-bit microprocessors such as 6502, 6809, 8085, and Z80.
- What are the key features of the AD7628KPZ-REEL?
Key features include precise DAC-to-DAC matching, small package size, microprocessor compatibility, four quadrant multiplication, and low power dissipation.
- In what applications can the AD7628KPZ-REEL be used?
It can be used in audio systems, graphics systems, and process control systems.
- What is the operating temperature range for the AD7628KPZ-REEL?
The operating temperature range is –40°C to +85°C for commercial and industrial grades, and –55°C to +125°C for extended grades.
- How does the AD7628KPZ-REEL handle input signals?
The device has a common 8-bit TTL/CMOS compatible input port and separate on-chip latches for each DAC.
- What is the significance of the DAC-to-DAC matching in the AD7628KPZ-REEL?
The precise matching and tracking between the two DACs enable high accuracy and make it suitable for applications requiring matched DACs.
