Overview
The AD9744ARUZRL7, 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 | bits | ||
| Maximum Output Update Rate (fCLOCK) | 210 | MSPS | ||
| Output Settling Time (tST) (to 0.1%) | 11 | ns | ||
| Power Dissipation | 135 | mW at 3.3 V | ||
| Power-Down Mode | 15 | mW at 3.3 V | ||
| Differential Current Outputs | 2 | 20 | mA | |
| Supply Voltage | 2.7 | 3.6 | V | |
| Package Types | 28-Lead TSSOP, 28-Lead SOIC, 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 consumption: 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 band gap reference integrated for a complete monolithic DAC solution.
- 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 AD9744ARUZRL7?
The AD9744ARUZRL7 has a 14-bit resolution.
- What is the maximum output update rate of the AD9744ARUZRL7?
The maximum output update rate is up to 210 MSPS.
- What are the power consumption characteristics of the AD9744ARUZRL7?
The device operates on 135 mW from a 2.7 V to 3.6 V single supply and has a power-down mode that reduces standby power to approximately 15 mW.
- What types of data coding does the AD9744ARUZRL7 support?
The device supports two's complement or straight binary data coding.
- What are the package options for the AD9744ARUZRL7?
The device is available in 28-Lead TSSOP, 28-Lead SOIC, and 32-Lead LFCSP packages.
- What are some typical applications of the AD9744ARUZRL7?
Typical 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 AD9744ARUZRL7 enhance dynamic performance?
The device uses a segmented current source architecture combined with a proprietary switching technique to reduce spurious components and enhance dynamic performance.
- What is the settling time of the AD9744ARUZRL7?
The output settling time (tST) is up to 11 ns (to 0.1%).
- Does the AD9744ARUZRL7 have integrated reference and latches?
Yes, it includes a 1.2 V temperature-compensated band gap reference and edge-triggered input latches.
- What logic family does the AD9744ARUZRL7 support for digital inputs?
The device supports 3 V CMOS logic families.
