Overview
The AD5449YRU-REEL, produced by Analog Devices Inc., is a dual 12-bit, high bandwidth, multiplying digital-to-analog converter (DAC) with a serial interface. This device is part of the AD5429/AD5439/AD5449 family, which includes 8-, 10-, and 12-bit versions, respectively. The AD5449 operates from a 2.5 V to 5.5 V power supply, making it suitable for battery-powered and other low-voltage applications. It is manufactured on a CMOS submicron process, offering excellent 4-quadrant multiplication characteristics and large signal multiplying bandwidths of up to 10 MHz.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions |
|---|---|---|---|---|---|
| Resolution | - | - | 12 Bits | - | - |
| Relative Accuracy | - | - | ±1 LSB | - | - |
| Differential Nonlinearity | - | - | −1/+2 LSB | - | Guaranteed monotonic |
| Gain Error | - | - | ±25 mV | - | - |
| Gain Error Temperature Coefficient | - | - | ±5 ppm/°C | - | - |
| Output Leakage Current | - | - | ±5 nA | - | Data = 0x0000, TA = 25°C |
| Reference-Multiplying Bandwidth | - | - | 10 MHz | - | VREF = ±3.5 V p-p |
| Output Voltage Settling Time | 30 ns | - | 60 ns | - | RLOAD = 100 Ω, CLOAD = 15 pF, VREF = 10 V |
| Power Supply Range | 2.5 V | - | 5.5 V | - | - |
| Power Supply Sensitivity | - | - | 0.001 %/% | - | ∆VDD = ±5% |
Key Features
- Dual 12-bit, high bandwidth, multiplying DAC with a serial interface compatible with SPI, QSPI, MICROWIRE, and most DSP interface standards.
- Operates from a 2.5 V to 5.5 V power supply, suitable for battery-powered and low-voltage applications.
- Integrated feedback resistor (RFB) provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier.
- Double-buffered, 3-wire serial interface and serial data out (SDO) pin for daisy-chaining multiple packages.
- Data readback capability via the SDO pin to read the contents of the DAC register.
- Available in 16-lead TSSOP packages.
Applications
The AD5449YRU-REEL is versatile and can be used in various applications requiring high precision and high bandwidth digital-to-analog conversion. These include:
- Battery-powered devices due to its low power supply range and low power consumption.
- Industrial control systems where precise analog output is necessary.
- Aerospace and defense applications requiring high reliability and precision.
- Medical devices that need accurate and stable analog signals.
- Automotive systems where robust and reliable DAC performance is critical.
Q & A
- What is the resolution of the AD5449YRU-REEL?
The AD5449YRU-REEL has a resolution of 12 bits.
- What is the operating voltage range of the AD5449YRU-REEL?
The device operates from a 2.5 V to 5.5 V power supply.
- What is the reference-multiplying bandwidth of the AD5449YRU-REEL?
The reference-multiplying bandwidth is up to 10 MHz.
- What type of interface does the AD5449YRU-REEL use?
The device uses a double-buffered, 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and most DSP interface standards.
- How does the AD5449YRU-REEL handle temperature tracking?
The integrated feedback resistor (RFB) provides temperature tracking when combined with an external current-to-voltage precision amplifier.
- What is the package type of the AD5449YRU-REEL?
The device is available in 16-lead TSSOP packages.
- Can multiple AD5449YRU-REEL devices be daisy-chained?
- What is the power supply sensitivity of the AD5449YRU-REEL?
- What is the output leakage current of the AD5449YRU-REEL?
- Is the AD5449YRU-REEL suitable for battery-powered applications?
