Overview
The AD5449YRU, produced by Analog Devices Inc., is a dual 12-bit, high bandwidth multiplying digital-to-analog converter (DAC). This CMOS device operates on a 2.5 V to 5.5 V power supply, making it suitable for battery-powered and other low-voltage applications. The AD5449 features dual-channel, current output DACs with excellent 4-quadrant multiplication characteristics and a large signal multiplying bandwidth of 10 MHz. It is manufactured on a CMOS submicron process, ensuring high performance and reliability.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| Resolution | 12 Bits | ||
| Number of D/A Converters | 2 | ||
| Output Type | Current - Unbuffered | ||
| Differential Output | Yes | ||
| Data Interface | SPI, DSP | ||
| Reference Type | External | ||
| Voltage - Supply, Analog | 2.5 V ~ 5.5 V | ||
| Voltage - Supply, Digital | 2.5 V ~ 5.5 V | ||
| Settling Time | 120 ns | RLOAD = 100 Ω, CLOAD = 15 pF, VREF = 10 V | |
| INL/DNL (LSB) | ±1 (Max), -1/+2 (Max) | ||
| Architecture | R-2R | ||
| Operating Temperature | -40°C ~ 125°C | ||
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) | ||
| Mounting Type | Surface Mount |
Key Features
- Dual 12-bit, current output digital-to-analog converters with high bandwidth multiplying capabilities.
- Operates from a 2.5 V to 5.5 V power supply, suitable for battery-powered applications.
- Excellent 4-quadrant multiplication characteristics with a large signal multiplying bandwidth of 10 MHz.
- Integrated feedback resistor (RFB) for temperature tracking and full-scale voltage output.
- Double-buffered, 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and most DSP interface standards.
- Serial data out (SDO) pin for daisy-chaining multiple packages.
- Data readback function to read the contents of the DAC register via the SDO pin.
- Power-on reset and guaranteed monotonic performance.
Applications
- Portable battery-powered applications.
- Waveform generators.
- Analog processing and instrumentation.
- Programmable amplifiers and attenuators.
- Digitally controlled calibration.
- Programmable filters and oscillators.
- Composite video and ultrasound applications.
- Gain, offset, and voltage trimming.
Q & A
- What is the resolution of the AD5449YRU DAC?
The AD5449YRU has a resolution of 12 bits.
- How many D/A converters does the AD5449YRU have?
The AD5449YRU has two D/A converters.
- What is the output type of the AD5449YRU?
The output type is current - unbuffered.
- What is the data interface of the AD5449YRU?
The data interface is SPI and DSP compatible.
- What is the reference type of the AD5449YRU?
The reference type is external.
- What is the operating temperature range of the AD5449YRU?
The operating temperature range is -40°C to 125°C.
- What is the package type of the AD5449YRU?
The package type is 16-TSSOP (0.173", 4.40mm Width).
- Does the AD5449YRU support daisy-chaining?
Yes, the AD5449YRU supports daisy-chaining through the serial data out (SDO) pin.
- What is the settling time of the AD5449YRU?
The settling time is 120 ns under specified conditions.
- Is the AD5449YRU guaranteed to be monotonic?
Yes, the AD5449YRU is guaranteed to be monotonic.
