Overview
The AD7248AAP is a precision 12-bit digital-to-analog converter (DAC) from Analog Devices, part of the DACPORT® series. This device is integrated on a single chip, featuring a voltage output DAC with an on-chip output amplifier and a buried Zener voltage reference. The AD7248AAP is designed for high reliability and space efficiency, making it suitable for a variety of applications requiring accurate analog output from digital signals.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Number of D/A Converters | 1 |
| Settling Time | 7µs |
| Output Type | Voltage - Buffered |
| Differential Output | No |
| Data Interface | Parallel |
| Reference Type | Internal |
| Voltage - Supply, Analog | ±10.8 V ~ 16.5 V |
| Voltage - Supply, Digital | 10.8 V ~ 16.5 V |
| Integral Nonlinearity (INL) | ±1 LSB Max |
| Differential Nonlinearity (DNL) | ±1 LSB Max |
| Architecture | R-2R Ladder |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 28-LCC (J-Lead) |
Key Features
- High Resolution: 12-bit resolution providing precise analog output.
- Internal Reference: On-chip buried Zener diode reference for stable operation.
- Buffered Output: Voltage output with an integrated output amplifier.
- Parallel Data Interface: Easy integration with microprocessors using a parallel data bus.
- R-2R Ladder Architecture: Highly stable and accurate conversion using a thin-film R-2R ladder.
- Fast Settling Time: 7µs settling time for rapid conversion.
- Wide Power Supply Range: Operates with analog and digital supply voltages ranging from ±10.8 V to 16.5 V.
- Extended Temperature Range: Operational from -40°C to 85°C, suitable for various environmental conditions.
Applications
The AD7248AAP is versatile and can be used in a variety of applications, including:
- Industrial Control Systems: For precise control and monitoring in industrial environments.
- Medical Devices: Where accurate analog outputs are critical for diagnostic and treatment equipment.
- Aerospace and Defense: For reliable operation in harsh environments.
- Automotive Systems: For control and monitoring in automotive electronics.
- Test and Measurement Equipment: For generating precise analog signals in testing and measurement applications.
Q & A
- What is the resolution of the AD7248AAP?
The AD7248AAP has a 12-bit resolution.
- What type of data interface does the AD7248AAP use?
The AD7248AAP uses a parallel data interface.
- What is the settling time of the AD7248AAP?
The settling time of the AD7248AAP is 7µs.
- Does the AD7248AAP have an internal reference?
Yes, the AD7248AAP has an internal reference provided by an on-chip buried Zener diode.
- What is the operating temperature range of the AD7248AAP?
The operating temperature range is -40°C to 85°C.
- What type of output does the AD7248AAP provide?
The AD7248AAP provides a buffered voltage output.
- What is the architecture of the DAC in the AD7248AAP?
The DAC uses an R-2R ladder architecture.
- Is the AD7248AAP suitable for industrial applications?
Yes, the AD7248AAP is suitable for industrial applications due to its high reliability and extended temperature range.
- What is the package type of the AD7248AAP?
The AD7248AAP is packaged in a 28-LCC (J-Lead) package.
- Does the AD7248AAP require external user trims for full performance?
No, the AD7248AAP does not require external user trims to achieve full specified performance.
