Overview
The AD7548JN/+ is a 12-bit monolithic CMOS Digital-to-Analog Converter (DAC) designed for use with 8-bit bus microprocessors. Manufactured by Analog Devices Inc., this component is part of the AD7548 series, known for its precision and compatibility with various microprocessor systems. The AD7548JN/+ is configured to accept data in two bytes, loaded into input holding registers, and can be set up to accept either left- or right-justified data. This flexibility makes it suitable for a wide range of applications requiring precise analog output from digital inputs.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Number of Bits | 12 |
| Number of D/A Converters | 1 |
| Settling Time | 1.5µs (Typ) |
| Differential Output | No |
| Data Interface | Parallel |
| Reference Type | External |
| Voltage - Supply, Analog | 5V, 11.4V ~ 15.75V |
| Voltage - Supply, Digital | 5V, 11.4V ~ 15.75V |
| INL/DNL (LSB) | ±1 (Max), ±1 (Max) |
| Architecture | Multiplying DAC, R-2R |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Through Hole |
| Package / Case | 20-DIP (0.300", 7.62mm) |
| Output Type | Current - Unbuffered |
Key Features
- Compatibility with 8-bit Bus Microprocessors: The AD7548JN/+ is designed to work seamlessly with 8-bit bus microprocessors, making it a versatile component for various digital systems.
- Flexible Data Loading: Data can be loaded in two bytes to input holding registers, with the option to configure for left- or right-justified data and least significant byte or most significant byte first.
- Separate Load DAC Control: A separate load DAC control input allows the user to update the analog output coincident with loading new data or at any time after the data loading event, which is crucial in multi-DAC systems.
- Precision and Accuracy: The component features a high level of precision with an INL/DNL of ±1 LSB (Max), ensuring accurate analog outputs.
- Wide Operating Voltage Range: The AD7548JN/+ operates with both analog and digital supply voltages ranging from 5V to 15.75V, providing flexibility in system design.
Applications
- Industrial Control Systems: The AD7548JN/+ is suitable for industrial control systems that require precise analog outputs from digital inputs, such as in process control and automation.
- Medical Devices: Its precision and reliability make it a good fit for medical devices that need accurate analog signals, such as in diagnostic equipment and patient monitoring systems.
- Aerospace and Defense: The component's robustness and wide operating temperature range make it suitable for use in aerospace and defense applications where reliability is critical.
- Automotive Systems: It can be used in automotive systems that require precise control over analog outputs, such as in engine control units and other automotive electronics.
Q & A
- What is the number of bits in the AD7548JN/+ DAC?
The AD7548JN/+ is a 12-bit Digital-to-Analog Converter.
- What type of data interface does the AD7548JN/+ use?
The AD7548JN/+ uses a parallel data interface.
- What is the typical settling time of the AD7548JN/+?
The typical settling time of the AD7548JN/+ is 1.5µs.
- Can the AD7548JN/+ be configured for left- or right-justified data?
Yes, the AD7548JN/+ can be configured to accept either left- or right-justified data.
- What is the operating temperature range of the AD7548JN/+?
The operating temperature range of the AD7548JN/+ is 0°C to 70°C.
- What type of package does the AD7548JN/+ come in?
The AD7548JN/+ comes in a 20-DIP (0.300", 7.62mm) package.
- Does the AD7548JN/+ have differential output?
No, the AD7548JN/+ does not have differential output.
- What is the architecture of the AD7548JN/+ DAC?
The AD7548JN/+ uses a Multiplying DAC and R-2R architecture.
- What are the typical supply voltages for the AD7548JN/+?
The typical supply voltages for the AD7548JN/+ are 5V and 11.4V to 15.75V for both analog and digital supplies.
- What is the INL/DNL specification of the AD7548JN/+?
The INL/DNL specification of the AD7548JN/+ is ±1 LSB (Max).
