Overview
The AD5531BRUZ-REEL7 is a 14-bit serial input, voltage output digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is part of the AD5530/AD5531 family, which includes both 12-bit and 14-bit versions. The AD5531 is designed for precision applications, offering a versatile 3-wire interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards. The DAC presents data in a 16-bit serial word format and features a buffered output referenced to the potential at DUTGND.
Key Specifications
| Parameter | Value | Unit | Test Conditions/Comments |
|---|---|---|---|
| Resolution | 14 | Bits | |
| Relative Accuracy | ±2 | LSB max | |
| Differential Nonlinearity | ±1 | LSB max | Guaranteed monotonic over temperature |
| Zero-Scale Error | ±8 | LSB max | Typically within ±1 LSB |
| Full-Scale Error | ±8 | LSB max | Typically within ±1 LSB |
| Gain Error | ±4 | LSB typ | |
| Gain Temperature Coefficient | 0.5 ppm FSR/°C typ, 10 ppm FSR/°C max | ||
| Reference Input Range | 0 to 4.096 V | ||
| Output Voltage Range | ±8.192 V DC | ||
| Output Voltage Settling Time | 20 μs typ | Full-scale change to ±½ LSB | |
| Slew Rate | 1.3 V/μs typ | ||
| Package Type | TSSOP-16 | ||
| Temperature Range | -40°C to +85°C |
Key Features
- Serial Input, Voltage Output: The AD5531 uses a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- Data Readback: Allows the contents of the DAC register to be read via the SDO pin.
- Clear Function: Resets the output to a user-defined voltage at DUTGND.
- Power-Down Function: Puts the DAC into a low power state.
- Buffered Output: The DAC output is buffered by a gain of two amplifier and referenced to the potential at DUTGND.
- LDAC Pin: Allows asynchronous updating of the DAC output.
- Daisy-Chaining: Serial data output available on the SDO pin for daisy-chaining purposes.
Applications
The AD5531 is suitable for a variety of precision applications, including:
- Industrial Control Systems: For precise voltage output in control systems.
- Medical Devices: Where high accuracy and reliability are crucial.
- Aerospace and Defense: For applications requiring robust and precise digital-to-analog conversion.
- Automotive Systems: For control and monitoring systems that require high precision.
- Test and Measurement Equipment: For generating precise voltage outputs.
Q & A
- What is the resolution of the AD5531BRUZ-REEL7?
The AD5531BRUZ-REEL7 has a resolution of 14 bits.
- What is the output voltage range of the AD5531?
The output voltage range is ±8.192 V DC.
- What type of interface does the AD5531 use?
The AD5531 uses a versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- How does the clear function work on the AD5531?
The clear function resets the output to a user-defined voltage at DUTGND.
- What is the purpose of the power-down pin on the AD5531?
The power-down pin allows the DAC to be put into a low power state.
- What is the temperature range for the AD5531?
The temperature range is -40°C to +85°C.
- What package type is the AD5531 available in?
The AD5531 is available in a 16-lead TSSOP package.
- Does the AD5531 support daisy-chaining?
Yes, the AD5531 supports daisy-chaining through the serial data output on the SDO pin.
- How does the LDAC pin function on the AD5531?
The LDAC pin allows asynchronous updating of the DAC output.
- What is the slew rate of the AD5531?
The slew rate is 1.3 V/μs typical.
