Overview
The AD7528KPZ-REEL, 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 available in various packages, including 20-lead DIPs and 20-terminal surface mount packages such as the 20-lead Flatpack (PLCC) for the KPZ-REEL variant.
The AD7528 features separate on-chip latches for each DAC, facilitating easy interface with microprocessors. It operates from a +5V to +15V power supply, consuming only 20mW of power, making it energy-efficient. The device is bus compatible with most 8-bit microprocessors, including the 6800, 8080, 8085, and Z80.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 8-bit | |
| Number of DACs | 2 | |
| Power Supply Range | +5V to +15V | V |
| Power Consumption | 20mW | mW |
| DAC-to-DAC Matching | 1% | % |
| Output Capacitance | 10pF (typical) | pF |
| Propagation Delay | 100ns (typical at VDD = +5V) | ns |
| Channel-to-Channel Isolation | 60dB (typical at 1kHz) | dB |
Key Features
- Excellent DAC-to-DAC matching of 1%.
- Separate on-chip latches for each DAC, enabling easy microprocessor interface.
- TTL/CMOS compatible input port.
- Four quadrant multiplication characteristics with separate reference input and feedback resistor for each DAC.
- Low power consumption of 20mW.
- Bus compatible with most 8-bit microprocessors.
- Available in various packages including 20-lead DIP and surface mount packages.
Applications
- Digital control of gain/attenuation and filter parameters.
- Stereo audio circuits.
- X-Y graphics.
- General digital-to-analog conversion in various industrial and consumer electronics.
Q & A
- What is the resolution of the AD7528 DAC?
The AD7528 is an 8-bit digital/analog converter.
- How many DACs are included in the AD7528?
The AD7528 includes two identical 8-bit DACs.
- What is the power supply range for the AD7528?
The AD7528 operates from a +5V to +15V power supply.
- How much power does the AD7528 consume?
The AD7528 consumes 20mW of power.
- What is the DAC-to-DAC matching of the AD7528?
The DAC-to-DAC matching is 1%.
- Is the AD7528 compatible with microprocessors?
Yes, it is bus compatible with most 8-bit microprocessors, including 6800, 8080, 8085, and Z80.
- What are the typical applications of the AD7528?
Typical applications include digital control of gain/attenuation, filter parameters, stereo audio circuits, and X-Y graphics.
- What types of packages are available for the AD7528?
The AD7528 is available in 20-lead DIP and various surface mount packages.
- Does the AD7528 support four quadrant multiplication?
Yes, both DACs offer excellent four quadrant multiplication characteristics.
- How is data transferred into the DACs of the AD7528?
Data is transferred into either of the two DAC data latches via a common 8-bit TTL/CMOS compatible input port.
