Overview
The AD5544ARSZ-REEL7 is a quad, 16-bit, current-output, digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is part of the AD5544/AD5554 family, designed to operate from a 2.7 V to 5.5 V supply range. The AD5544 features four independent DACs, each with its own multiplying reference input, making it suitable for a variety of precision analog applications. The device is packaged in a compact 28-lead SSOP and is known for its high-speed, 3-wire, SPI-compatible serial data interface.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16-bit | |
| Supply Voltage Range | 2.7 V to 5.5 V | V |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Type | 28-Lead SSOP | |
| Serial Interface | 3-wire, SPI-compatible | |
| Reference Input Voltage (VREFx) | Determines full-scale output current | V |
| Integrated Feedback Resistors (RFB) | Temperature-tracking, full-scale voltage outputs |
Key Features
- Quad, 16-bit, current-output DACs with independent multiplying reference inputs.
- High-speed, 3-wire, SPI-compatible serial data interface.
- Integrated feedback resistors (RFB) for temperature-tracking, full-scale voltage outputs when combined with an external I-to-V precision amplifier.
- Double-buffered serial data interface with 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.
- Asynchronous input RS pin for hardware control over preset function and DAC register loading.
Applications
The AD5544ARSZ-REEL7 is suitable for various precision analog applications, including:
- Industrial control systems.
- Aerospace and defense (supported by the AD5544-EP model which meets AQEC standards).
- Medical devices requiring high precision analog output.
- Automotive systems needing reliable and accurate analog signals.
- Test and measurement equipment.
Q & A
- What is the resolution of the AD5544ARSZ-REEL7?
The AD5544ARSZ-REEL7 has a resolution of 16 bits.
- What is the operating supply voltage range of the AD5544ARSZ-REEL7?
The operating supply voltage range is from 2.7 V to 5.5 V.
- What type of package does the AD5544ARSZ-REEL7 come in?
The AD5544ARSZ-REEL7 is packaged in a 28-lead SSOP.
- What kind of serial interface does the AD5544ARSZ-REEL7 use?
The AD5544ARSZ-REEL7 uses a 3-wire, SPI-compatible serial data interface.
- How does the AD5544ARSZ-REEL7 handle power-on reset?
The AD5544ARSZ-REEL7 has an internal power-on reset that forces the output voltage to 0 at system turn-on.
- Can the AD5544ARSZ-REEL7 be daisy-chained with other packages?
- What is the purpose of the integrated feedback resistors (RFB) in the AD5544ARSZ-REEL7?
The integrated feedback resistors (RFB) provide temperature-tracking, full-scale voltage outputs when combined with an external I-to-V precision amplifier.
- How does the asynchronous input RS pin function in the AD5544ARSZ-REEL7?
The asynchronous input RS pin forces all input and DAC registers to either the zero-code state (MSB = 0) or the half-scale code (MSB = 1).
- What is the recommended power supply configuration for the AD5544ARSZ-REEL7?
A clean power supply with low ripple voltage capability is recommended. It is best to derive the supply from system analog supply voltages rather than digital supplies.
- What are some common applications of the AD5544ARSZ-REEL7?
The AD5544ARSZ-REEL7 is commonly used in industrial control systems, aerospace and defense, medical devices, automotive systems, and test and measurement equipment.
