Overview
The AD5544BRSZ-REEL7 is a quad, 16-bit, current-output, digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is designed to operate within a supply voltage range of 2.7 V to 5.5 V. It features a double-buffered serial data interface that is compatible with SPI and microcontrollers, using serial data in (SDI), chip select (CS), and clock (CLK) signals. The AD5544 is particularly useful in applications requiring precise analog output control and is available in a compact 28-lead SSOP package.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Output Type | Current Output |
| Reference Input Voltage (VREFx) | Determines full-scale output current |
| Integrated Feedback Resistors (RFBx) | Provide temperature-tracking, full-scale voltage outputs |
| Serial Interface | 3-wire, SPI-compatible (SDI, CS, CLK) |
| Package Type | 28-lead SSOP |
| Operating Temperature Range | -40°C to +125°C |
| Output Voltage Settling Time | 0.9 µs (to ±0.1% of full scale) |
Key Features
- Double-buffered serial data interface for high-speed data transfer
- SPI- and microcontroller-compatible inputs
- Serial data out pin (SDO) for daisy-chaining multiple packages
- Common, level-sensitive, load DAC strobe (LDAC) input for simultaneous update of all DAC outputs
- Internal power-on reset forces output voltage to 0 at system turn-on
- MSB pin allows system reset assertion to force all registers to zero code or half-scale code
- Integrated feedback resistors provide temperature-tracking, full-scale voltage outputs when combined with an external I-to-V precision amplifier
Applications
The AD5544BRSZ-REEL7 is suitable for various applications requiring precise analog output control, such as industrial control systems, medical devices, and defense and aerospace applications. It is particularly useful in scenarios where multiple DACs need to be controlled simultaneously and where high accuracy and stability are crucial.
Q & A
- What is the resolution of the AD5544BRSZ-REEL7 DAC?
The AD5544BRSZ-REEL7 has a resolution of 16 bits. - What is the supply voltage range for the AD5544BRSZ-REEL7?
The supply voltage range is 2.7 V to 5.5 V. - What type of output does the AD5544BRSZ-REEL7 provide?
The AD5544BRSZ-REEL7 provides a current output. - How does the reference input voltage affect the AD5544BRSZ-REEL7?
The external reference input voltage (VREFx) determines the full-scale output current. - What is the purpose of the integrated feedback resistors (RFBx)?
The integrated feedback resistors provide temperature-tracking, full-scale voltage outputs when combined with an external I-to-V precision amplifier. - What type of serial interface does the AD5544BRSZ-REEL7 use?
The AD5544BRSZ-REEL7 uses a 3-wire, SPI-compatible serial interface. - What is the package type of the AD5544BRSZ-REEL7?
The AD5544BRSZ-REEL7 is packaged in a 28-lead SSOP. - What is the operating temperature range of the AD5544BRSZ-REEL7?
The operating temperature range is -40°C to +125°C. - How long does it take for the output voltage to settle to ±0.1% of full scale?
The output voltage settling time is 0.9 µs. - What is the function of the MSB pin in the AD5544BRSZ-REEL7?
The MSB pin allows system reset assertion to force all registers to zero code when MSB = 0 or to half-scale code when MSB = 1.
