Overview
The AD7528LRZ, produced by Analog Devices Inc., is a monolithic dual 8-bit digital-to-analog converter (DAC) that features excellent DAC-to-DAC matching. This device is designed for applications requiring precise analog output control and is available in various packages, including 20-lead SOIC (wide) for the AD7528LRZ model. The AD7528 operates from a +5V to +15V power supply, dissipating only 20mW of power, making it energy-efficient. It is bus compatible with most 8-bit microprocessors, such as the 6800, 8080, 8085, and Z80, facilitating easy integration into digital systems.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 8 |
| Number of D/A Converters | 2 |
| Architecture | R-2R |
| Data Interface | Parallel |
| Voltage - Power, Digital/Analog | +5V to +15V |
| Output Type | Current - Unbuffered |
| INL / DNL (LSB) | ±0.5 (Max), ±1 (Max) |
| Settling Time | 400ns |
| Working Temperature | -40°C to +85°C |
| Package Type | 20-Lead SOIC (Wide) |
Key Features
- DAC-to-DAC Matching: Excellent matching and tracking between the two DACs, making it suitable for applications requiring precise analog output control.
- On-Chip Latches: Separate on-chip latches for each DAC, allowing easy microprocessor interface and data transfer via a common 8-bit TTL/CMOS compatible input port.
- Four Quadrant Multiplication: Both DACs offer excellent four quadrant multiplication characteristics with separate reference inputs and feedback resistors for each DAC.
- Low Power Consumption: Operates with a power dissipation of only 20mW.
- Bus Compatibility: Compatible with most 8-bit microprocessors, including 6800, 8080, 8085, and Z80.
Applications
- Digital Control of Gain/Attenuation and Filter Parameters: Ideal for adjusting gain and attenuation levels in various circuits.
- Stereo Audio Circuits: Suitable for audio applications requiring precise analog control.
- X-Y Graphics: Used in graphics systems where precise DAC-to-DAC matching is crucial.
- Process Control: Applicable in process control systems where accurate analog outputs are necessary.
Q & A
- What is the AD7528LRZ?
The AD7528LRZ is a monolithic dual 8-bit digital-to-analog converter produced by Analog Devices Inc..
- What are the key features of the AD7528LRZ?
Key features include excellent DAC-to-DAC matching, on-chip latches, four quadrant multiplication, low power consumption, and bus compatibility with most 8-bit microprocessors.
- What is the operating voltage range of the AD7528LRZ?
The device operates from a +5V to +15V power supply.
- What is the settling time of the AD7528LRZ?
The settling time is 400ns.
- What are the typical applications of the AD7528LRZ?
Typical applications include digital control of gain/attenuation and filter parameters, stereo audio circuits, X-Y graphics, and process control.
- What package types are available for the AD7528?
The AD7528 is available in various packages, including 20-lead DIP, SOIC, and PLCC. The AD7528LRZ specifically comes in a 20-lead SOIC (wide) package.
- How much power does the AD7528LRZ consume?
The device dissipates only 20mW of power.
- Is the AD7528LRZ compatible with microprocessors?
Yes, it is bus compatible with most 8-bit microprocessors, including 6800, 8080, 8085, and Z80.
- What is the working temperature range of the AD7528LRZ?
The working temperature range is -40°C to +85°C.
- Does the AD7528LRZ have on-chip latches?
Yes, it has separate on-chip latches for each DAC, facilitating easy microprocessor interface.
