Overview
The AD7528JR, 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 skinny 0.3" wide 20-lead DIPs and 20-terminal surface mount packages. It features separate on-chip latches for each DAC, facilitating easy interface with microprocessors. The AD7528JR operates from a +5 V to +15 V power supply, consuming only 20 mW of power, making it highly efficient for various applications.
Key Specifications
| Parameter | Value | Units | Comments |
|---|---|---|---|
| Number of Bits | 8 | - | Per DAC |
| Number of DACs | 2 | - | Dual DAC |
| Power Supply Range | +5 V to +15 V | V | - |
| Power Consumption | 20 mW | mW | - |
| DAC-to-DAC Matching | 1% | % | - |
| Input Compatibility | TTL/CMOS | - | - |
| Write Pulse Width | 180 ns to 200 ns | ns | VDD = +5 V to +15 V |
| Chip Select to Write Set Up Time | 200 ns to 230 ns | ns | VDD = +5 V to +15 V |
Key Features
- Excellent DAC-to-DAC matching of 1%
- On-chip latches for each DAC, enabling easy microprocessor interface
- Common 8-bit TTL/CMOS compatible input port for data transfer
- Four quadrant multiplication characteristics with separate reference input and feedback resistor for each DAC
- Bus compatible with most 8-bit microprocessors (e.g., 6800, 8080, 8085, Z80)
- Low power consumption of 20 mW
- Operation from +5 V to +15 V power supply
Applications
- Digital control of gain/attenuation and filter parameters
- Stereo audio circuits
- X-Y graphics
- Any application requiring precise digital-to-analog conversion with good DAC-to-DAC matching
Q & A
- What is the AD7528JR?
The AD7528JR is a monolithic dual 8-bit digital/analog converter produced by Analog Devices Inc.
- What are the key features of the AD7528JR?
Key features include excellent DAC-to-DAC matching, on-chip latches, TTL/CMOS compatible inputs, and four quadrant multiplication characteristics.
- What is the power supply range for the AD7528JR?
The device operates from a +5 V to +15 V power supply.
- How much power does the AD7528JR consume?
The AD7528JR consumes only 20 mW of power.
- Is the AD7528JR compatible with microprocessors?
Yes, it is bus compatible with most 8-bit microprocessors, including 6800, 8080, 8085, and Z80.
- What types of packages are available for the AD7528JR?
The device is available in skinny 0.3" wide 20-lead DIPs and 20-terminal surface mount packages.
- What are some common applications of the AD7528JR?
Common applications include digital control of gain/attenuation and filter parameters, stereo audio circuits, and X-Y graphics.
- How does the AD7528JR handle data transfer?
Data is transferred into either of the two DAC data latches via a common 8-bit TTL/CMOS compatible input port.
- What is the significance of the on-chip latches in the AD7528JR?
The on-chip latches allow for easy microprocessor interface.
- Does the AD7528JR support four quadrant multiplication?
Yes, both DACs offer excellent four quadrant multiplication characteristics with separate reference input and feedback resistor for each DAC.
