Overview
The AD7528LR is a monolithic dual 8-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. It is renowned for its excellent DAC-to-DAC matching and is available in various packages, including skinny 0.3" wide 20-lead DIPs and 20-terminal surface mount packages. This device is designed to facilitate easy microprocessor interface with separate on-chip latches for each DAC and a common 8-bit TTL/CMOS compatible input port.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 8 |
| Number of D/A Converters | 2 |
| Architecture | R-2R |
| Reference Type | External |
| Voltage - Supply, Analog/Digital | +5 V to +15 V |
| Settling Time | 400 ns |
| INL/DNL (LSB) | ±0.5 (Max), ±1 (Max) |
| Operating Temperature | -40°C to 85°C |
| Package/Case | 20-SOIC (0.295", 7.50mm Width) |
| Power Dissipation | 20 mW |
Key Features
- Excellent DAC-to-DAC matching to 1%.
- On-chip latches for both DACs, facilitating easy microprocessor interface.
- TTL/CMOS compatible input port.
- 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 dissipation of 20 mW.
- Single supply operation with AGND biased at any voltage between DGND and VDD.
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 AD7528LR? The AD7528LR is a monolithic dual 8-bit digital-to-analog converter produced by Analog Devices Inc.
- What are the key features of the AD7528LR? It includes excellent DAC-to-DAC matching, on-chip latches, TTL/CMOS compatible input port, and four quadrant multiplication characteristics.
- What are the operating voltage ranges for the AD7528LR? The device operates from a +5 V to +15 V power supply.
- How much power does the AD7528LR dissipate? It dissipates only 20 mW of power.
- What is the settling time of the AD7528LR? The settling time is 400 ns.
- Is the AD7528LR compatible with microprocessors? Yes, it is bus compatible with most 8-bit microprocessors.
- What are the typical applications of the AD7528LR? It is used in digital control of gain/attenuation, filter parameters, stereo audio circuits, and X-Y graphics.
- What is the operating temperature range of the AD7528LR? The operating temperature range is -40°C to 85°C.
- What type of architecture does the AD7528LR use? It uses an R-2R architecture.
- Is the AD7528LR available in different packages? Yes, it is available in skinny 0.3" wide 20-lead DIPs and 20-terminal surface mount packages.
