Overview
The AD7528KP, 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 device is particularly useful in applications requiring precise analog output control, such as audio, graphics, and process control systems. The AD7528KP operates from a +5V to +15V power supply and dissipates only 20mW of power, making it energy-efficient. It is available in various package types, including 20-lead DIP, SOIC, PLCC, and LCCC, ensuring flexibility in design and implementation.
Key Specifications
| Parameter | Value | Units | Comments |
|---|---|---|---|
| Number of Bits | 8 | - | Dual 8-bit DACs |
| Package Type | 20-PLCC (J-Lead) | - | Surface Mount |
| Operating Temperature | -40°C to +85°C | °C | - |
| Voltage - Supply, Analog/Digital | +5V to +15V | V | - |
| Power Dissipation | 20 mW | mW | - |
| Settling Time | 400 ns | ns | - |
| INL/DNL (LSB) | ±0.5 (Max), ±1 (Max) | LSB | - |
| Reference Type | External | - | - |
| Data Interface | Parallel | - | TTL/CMOS compatible |
| Output Type | Current - Unbuffered | - | - |
Key Features
- DAC-to-DAC Matching: The AD7528KP features excellent matching and tracking between its two DACs, which are fabricated on the same chip, ensuring precise analog output control.
- Small Package Size: Available in compact 20-lead DIP, SOIC, PLCC, and LCCC packages, making it suitable for space-constrained designs.
- Four Quadrant Multiplication: Each DAC offers excellent four quadrant multiplication characteristics with separate reference inputs and feedback resistors.
- Low Power Consumption: Operates with a power dissipation of only 20 mW, making it energy-efficient.
- Bus Compatibility: Compatible with most 8-bit microprocessors, including 6800, 8080, 8085, and Z80.
- On-Chip Latches: Separate on-chip latches for each DAC facilitate easy microprocessor interface.
Applications
- Digital Control of Gain/Attenuation and Filter Parameters: The AD7528KP is ideal for applications requiring precise control over gain and filter parameters.
- Stereo Audio Circuits: Suitable for audio applications due to its excellent DAC-to-DAC matching and four quadrant multiplication characteristics.
- X-Y Graphics: Used in graphics systems where precise analog output control is necessary.
- Process Control Systems: Applicable in process control environments where accurate and stable analog outputs are required.
Q & A
- What is the AD7528KP used for?
The AD7528KP is a dual 8-bit digital-to-analog converter used in applications requiring precise analog output control, such as audio, graphics, and process control systems.
- What are the key features of the AD7528KP?
Key features include excellent DAC-to-DAC matching, small package size, four quadrant multiplication, low power consumption, bus compatibility with 8-bit microprocessors, and on-chip latches for easy microprocessor interface.
- What are the operating voltage ranges for the AD7528KP?
The device operates from a +5V to +15V power supply for both analog and digital sections.
- What is the settling time of the AD7528KP?
The settling time of the AD7528KP is 400 ns.
- Is the AD7528KP RoHS compliant?
Yes, the AD7528KP is RoHS compliant.
- What types of packages are available for the AD7528KP?
The AD7528KP is available in 20-lead DIP, SOIC, PLCC, and LCCC packages.
- What is the power dissipation of the AD7528KP?
The device dissipates only 20 mW of power.
- Is the AD7528KP compatible with most microprocessors?
Yes, it is compatible with most 8-bit microprocessors, including 6800, 8080, 8085, and Z80.
- What is the operating temperature range of the AD7528KP?
The operating temperature range is -40°C to +85°C.
- Does the AD7528KP have on-chip latches?
Yes, it has separate on-chip latches for each DAC to facilitate easy microprocessor interface.
