Overview
The AD5444YRMZ is a 12-bit, current output, digital-to-analog converter (DAC) produced by Analog Devices Inc. This CMOS device operates from a single 2.5 V to 5.5 V power supply, making it suitable for battery-powered and other low-voltage applications. The AD5444 features a double-buffered, 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and most DSP interface standards. It is known for its high bandwidth and 4-quadrant multiplication characteristics, making it a versatile component for various precision analog applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 12 Bits | ||||
| Relative Accuracy | ±0.5 LSB | ||||
| Differential Nonlinearity | ±1 LSB | Guaranteed monotonic | |||
| Total Unadjusted Error (TUE) | ±1 LSB | ||||
| Gain Error | ±0.5 LSB | ||||
| Supply Voltage (VDD) | 2.5 V | 5.5 V | V | ||
| Reference Input Voltage (VREF) | ±10 V | V | |||
| Output Voltage Settling Time | 100 ns | ns | Measured to ±1 mV of FS | ||
| Maximum Clock Frequency (fSCLK) | 50 MHz | MHz | |||
| Update Rate | 2.7 MSPS | MSPS | |||
| Operating Temperature Range | −40°C | +125°C | °C |
Key Features
- 12-bit resolution with high accuracy and linearity (±0.5 LSB relative accuracy, ±1 LSB differential nonlinearity)
- Single 2.5 V to 5.5 V power supply operation, suitable for battery-powered applications
- Double-buffered, 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and most DSP interface standards
- High bandwidth with 12 MHz multiplying bandwidth and 4-quadrant multiplication characteristics
- ±10 V reference input voltage capability despite single-supply operation
- Integrated feedback resistor for temperature tracking and full-scale voltage output
- 10-lead MSOP package, pin-compatible with other DACs in the AD5425/AD5426/AD5432/AD5443 family
- Extended temperature range: −40°C to +125°C
- Power-on reset with brownout detection and low current consumption (0.4 µA typical)
Applications
The AD5444YRMZ is versatile and can be used in a variety of applications, including:
- Battery-powered devices due to its low power consumption and single-supply operation
- Industrial control systems requiring high precision and reliability
- Aerospace and defense applications where high accuracy and temperature stability are crucial
- Medical devices that require precise analog output signals
- Automotive systems where robustness and wide temperature range are necessary
Q & A
- What is the resolution of the AD5444YRMZ DAC?
The AD5444YRMZ has a 12-bit resolution
- What is the operating voltage range of the AD5444YRMZ?
The AD5444YRMZ operates from a single 2.5 V to 5.5 V power supply
- What type of serial interface does the AD5444YRMZ use?
The AD5444YRMZ uses a double-buffered, 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and most DSP interface standards
- What is the maximum clock frequency for the AD5444YRMZ?
The maximum clock frequency is 50 MHz
- What is the update rate of the AD5444YRMZ?
The update rate is 2.7 MSPS
- What is the operating temperature range of the AD5444YRMZ?
The operating temperature range is −40°C to +125°C
- Can the AD5444YRMZ handle high reference input voltages?
Yes, the AD5444YRMZ can handle ±10 V reference input voltages despite operating from a single-supply power supply
- What package type is the AD5444YRMZ available in?
The AD5444YRMZ is available in a 10-lead MSOP package
- Is the AD5444YRMZ pin-compatible with other DACs?
Yes, it is pin-compatible with the AD5425/AD5426/AD5432/AD5443 family of DACs
- What is the typical current consumption of the AD5444YRMZ?
The typical current consumption is 0.4 µA
