Overview
The AD5551BR, produced by Analog Devices Inc., is a single, 14-bit, serial-input, voltage-output digital-to-analog converter (DAC). This component operates from a single supply voltage ranging from 2.7 V to 5.5 V, making it versatile for various applications. The AD5551BR provides 14-bit performance without any adjustments and features an unbuffered voltage output, which reduces power consumption and offset errors contributed by an output buffer. It is available in 8-lead and 14-lead SOIC packages, ensuring compatibility with different design requirements.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Resolution | 14 bits | - |
| Supply Voltage | 2.7 V to 5.5 V | - |
| Output Range | 0 V to VREF | Unipolar mode |
| Output Range (Bipolar Mode) | ±VREF | AD5552 only, with external op-amp |
| Interface Compatibility | SPI, QSPI, MICROWIRE, DSP | - |
| Power Consumption | Typically 300 µA at 5 V | - |
| Operating Temperature Range | –40°C to +85°C | Industrial (B Version) |
| Storage Temperature Range | –65°C to +150°C | - |
| Maximum Junction Temperature | 150°C | - |
| Package Options | 8-lead SOIC, 14-lead SOIC | - |
Key Features
- Full 14-bit Performance: No adjustments required for 14-bit accuracy.
- Low Power Consumption: Typically 300 µA at 5 V supply.
- Unbuffered Voltage Output: Reduces power consumption and offset errors.
- Versatile Interface: Compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- Power-On Reset: Ensures a known power-up state, resetting the output to 0 V in unipolar mode or –VREF in bipolar mode (AD5552).
- Kelvin Sense Connections: Included on the AD5552 for reduced layout sensitivity.
Applications
- Digital Gain and Offset Adjustment: Precise control over gain and offset in various circuits.
- Automatic Test Equipment: Used in test and measurement systems for accurate voltage generation.
- Data Acquisition Systems: Provides high-resolution voltage outputs for data acquisition applications.
- Industrial Process Control: Suitable for controlling and monitoring industrial processes with high precision.
Q & A
- What is the resolution of the AD5551BR?
The AD5551BR has a resolution of 14 bits.
- What is the operating supply voltage range for the AD5551BR?
The AD5551BR operates from a single supply voltage ranging from 2.7 V to 5.5 V.
- What is the output range of the AD5551BR in unipolar mode?
The output range in unipolar mode is from 0 V to VREF.
- Can the AD5551BR be used in bipolar mode?
No, the AD5551BR does not support bipolar mode. However, the AD5552, which is similar, can be configured for bipolar mode with an external op-amp.
- What interface standards is the AD5551BR compatible with?
The AD5551BR is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- What is the typical power consumption of the AD5551BR at 5 V supply?
The typical power consumption is 300 µA at 5 V supply.
- What are the package options available for the AD5551BR?
The AD5551BR is available in 8-lead and 14-lead SOIC packages.
- Does the AD5551BR have a power-on reset feature?
Yes, the AD5551BR has a power-on reset feature that ensures the output is reset to a known state upon power-up.
- What are some common applications of the AD5551BR?
Common applications include digital gain and offset adjustment, automatic test equipment, data acquisition systems, and industrial process control.
- How does the unbuffered output of the AD5551BR affect its performance?
The unbuffered output reduces power consumption and offset errors contributed by an output buffer.
