Overview
The AD9744ARURL7, produced by Analog Devices Inc., is a 14-bit resolution, wideband, third-generation member of the TxDAC series of high-performance, low-power CMOS digital-to-analog converters (DACs). This device is optimized for the transmit signal path of communication systems and is part of a family that includes pin-compatible 8-, 10-, 12-, and 14-bit DACs. The AD9744 offers exceptional AC and DC performance, supporting update rates up to 210 MSPS, making it suitable for high-speed applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 14 | 14 | 14 | Bits |
| Maximum Output Update Rate (fCLOCK) | - | - | 210 | MSPS |
| Output Settling Time (tST) (to 0.1%) | - | 11 | - | ns |
| Power Dissipation at 3.3 V | - | 135 | - | mW |
| Power-Down Mode at 3.3 V | - | 15 | - | mW |
| Differential Current Outputs | 2 | - | 20 | mA |
| On-Chip Reference Voltage | - | 1.2 | - | V |
| Package Options | - | 28-lead SOIC, 28-lead TSSOP, 32-lead LFCSP | - | - |
Key Features
- High-speed, single-ended CMOS clock input supporting up to 210 MSPS conversion rate.
- Data input supports two's complement or straight binary data coding.
- Low power operation: Complete CMOS DAC function operates on 135 mW from a 2.7 V to 3.6 V single supply.
- Power-down mode reduces standby power dissipation to approximately 15 mW.
- Segmented current source architecture combined with a proprietary switching technique to reduce spurious components and enhance dynamic performance.
- Edge-triggered input latches and a 1.2 V temperature-compensated bandgap reference.
- Digital inputs support 3 V CMOS logic families.
Applications
- Wideband communication transmit channels.
- Direct IFs (Intermediate Frequencies).
- Base stations.
- Wireless local loops.
- Digital radio links.
- Direct digital synthesis (DDS).
- Instrumentation.
Q & A
- What is the resolution of the AD9744ARURL7 DAC?
The AD9744ARURL7 has a 14-bit resolution.
- What is the maximum output update rate of the AD9744ARURL7?
The maximum output update rate is up to 210 MSPS.
- What are the power dissipation and power-down mode specifications?
The power dissipation is 135 mW at 3.3 V, and the power-down mode reduces standby power to approximately 15 mW.
- What types of data coding does the AD9744ARURL7 support?
The AD9744ARURL7 supports two's complement and straight binary data coding.
- What are the package options for the AD9744ARURL7?
The package options include 28-lead SOIC, 28-lead TSSOP, and 32-lead LFCSP.
- What is the on-chip reference voltage of the AD9744ARURL7?
The on-chip reference voltage is 1.2 V.
- What are some of the key applications of the AD9744ARURL7?
Key applications include wideband communication transmit channels, direct IFs, base stations, wireless local loops, digital radio links, direct digital synthesis (DDS), and instrumentation.
- How does the AD9744ARURL7 reduce spurious components and enhance dynamic performance?
The AD9744ARURL7 uses a segmented current source architecture combined with a proprietary switching technique.
- What is the typical output settling time of the AD9744ARURL7?
The typical output settling time is 11 ns.
- Does the AD9744ARURL7 support 3 V CMOS logic families?
Yes, the digital inputs support 3 V CMOS logic families.
