Overview
The AD7628KR, produced by Analog Devices Inc., is a monolithic dual 8-bit digital/analog converter (DAC) known for its excellent DAC-to-DAC matching. This device is particularly useful in applications requiring precise analog output, such as audio, graphics, and process control. The AD7628KR is available in various packages, including 20-pin DIP and 20-terminal surface mount packages like the SOIC (Small Outline Integrated Circuit).
Key Specifications
| Specification | Value | Unit |
|---|---|---|
| Number of Bits | 8 | |
| Input Format | Parallel, 8 Bits | |
| Supply Voltage | +12 V to +15 V | V |
| Power Dissipation | 20 mW | mW |
| Operating Temperature | -40°C to 85°C | °C |
| Package Type | SOIC-20, PDIP-20 | |
| Linearity Error (Max) | 0.1953% | % |
| Input High Voltage (Min) | 2.4 V | V |
| Input Low Voltage (Max) | 0.8 V | V |
| Input Current (Max) | ±10 µA | µA |
Key Features
- DAC-to-DAC Matching: The AD7628KR features excellent matching and tracking between its two DACs, which are fabricated on the same chip.
- Small Package Size: The device is available in compact packages such as 20-pin DIP and 20-terminal SOIC, making it suitable for space-constrained applications.
- Microprocessor Compatibility: The AD7628KR is bus compatible with most 8-bit microprocessors, including 6502, 6809, 8085, and Z80. It has separate on-chip latches for each DAC, allowing easy interface with microprocessors.
- Four Quadrant Multiplication: Both DACs offer excellent four quadrant multiplication characteristics with separate reference inputs and feedback resistors for each DAC.
- Low Power Dissipation: The device operates with a low power dissipation of 20 mW, making it energy-efficient.
Applications
The AD7628KR is suitable for a variety of applications, including:
- Audio Systems: The precise DAC-to-DAC matching and four quadrant multiplication characteristics make it ideal for audio applications requiring high fidelity and accuracy.
- Graphics Systems: The device's performance is beneficial in graphics applications where precise analog outputs are necessary.
- Process Control: It is used in process control systems where accurate and reliable analog signals are crucial for monitoring and controlling processes.
Q & A
- What is the AD7628KR?
The AD7628KR is a monolithic dual 8-bit digital/analog converter (DAC) produced by Analog Devices Inc.
- What are the key features of the AD7628KR?
The key features include excellent DAC-to-DAC matching, small package size, microprocessor compatibility, four quadrant multiplication characteristics, and low power dissipation.
- What are the typical applications of the AD7628KR?
The device is typically used in audio systems, graphics systems, and process control applications.
- What is the operating voltage range of the AD7628KR?
The device operates from a +12 V to +15 V power supply.
- What is the power dissipation of the AD7628KR?
The power dissipation is 20 mW.
- What is the operating temperature range of the AD7628KR?
The operating temperature range is -40°C to 85°C.
- Is the AD7628KR compatible with microprocessors?
Yes, it is bus compatible with most 8-bit microprocessors, including 6502, 6809, 8085, and Z80.
- What type of input format does the AD7628KR support?
The device supports parallel 8-bit input format.
- What is the linearity error of the AD7628KR?
The linearity error is up to 0.1953%.
- What are the package options for the AD7628KR?
The device is available in 20-pin DIP and 20-terminal SOIC packages.
