Overview
The AD9740ARUZRL7, produced by Analog Devices Inc., is a 10-bit resolution, wideband, third-generation member of the TxDAC series of high-performance, low-power CMOS digital-to-analog converters (DACs). This device is specifically optimized for the transmit signal path of communication systems and is part of a pin-compatible family that includes 8-, 10-, 12-, and 14-bit DACs. The AD9740 offers exceptional AC and DC performance, supporting update rates up to 210 MSPS, making it well-suited for portable and low-power applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 10 bits | |||
| Maximum Output Update Rate (fCLOCK) | 210 | MSPS | ||
| Output Settling Time (tST) (to 0.1%) | 11 | ns | ||
| Output Propagation Delay (tPD) | 1 | ns | ||
| Glitch Impulse | 5 | pV-s | ||
| Output Rise Time (10% to 90%) | 2.5 | ns | ||
| Output Fall Time (10% to 90%) | 2.5 | ns | ||
| Output Noise (IOUTFS = 20 mA) | 50 | pA/√Hz | ||
| Power Supply Range | 2.7 | 3.6 | V | |
| Power Dissipation (typical) | 135 | mW | ||
| Standby Power Dissipation | 15 | mW | ||
| Package Type | 28-Lead TSSOP (4.4mm x 9.7mm) | |||
Key Features
- High-Speed Conversion: Supports update rates up to 210 MSPS, making it suitable for high-speed communication systems.
- Low Power Consumption: Operates on 135 mW from a 2.7 V to 3.6 V single supply, with options to reduce power further to 60 mW and a standby mode of approximately 15 mW.
- Segmented Current Source Architecture: Combined with a proprietary switching technique to reduce spurious components and enhance dynamic performance.
- Integrated Voltage Reference: Includes a 1.2 V temperature-compensated band gap voltage reference.
- Digital Input Support: Supports 3 V CMOS logic families and edge-triggered input latches.
- Flexible Packaging: Available in 28-lead SOIC, 28-lead TSSOP, and 32-lead LFCSP packages.
Applications
The AD9740ARUZRL7 is specifically optimized for the transmit signal path of communication systems. It is ideal for use in various communication applications, including:
- Wireless communication systems
- Cable infrastructure
- Satellite communications
- Radar and military communications
- Portable and low-power communication devices
Q & A
- What is the resolution of the AD9740ARUZRL7?
The AD9740ARUZRL7 has a 10-bit resolution.
- What is the maximum output update rate of the AD9740ARUZRL7?
The maximum output update rate is up to 210 MSPS.
- What is the typical power consumption of the AD9740ARUZRL7?
The typical power consumption is 135 mW from a 2.7 V to 3.6 V single supply.
- How can the power consumption be reduced?
The power consumption can be reduced to 60 mW by lowering the full-scale current output, and a power-down mode reduces the standby power dissipation to approximately 15 mW.
- What type of voltage reference does the AD9740ARUZRL7 include?
The AD9740ARUZRL7 includes a 1.2 V temperature-compensated band gap voltage reference.
- What are the supported digital input logic families?
The AD9740ARUZRL7 supports 3 V CMOS logic families.
- In what packages is the AD9740ARUZRL7 available?
The AD9740ARUZRL7 is available in 28-lead SOIC, 28-lead TSSOP, and 32-lead LFCSP packages.
- What is the output settling time of the AD9740ARUZRL7?
The output settling time is up to 11 ns (to 0.1%).
- What is the glitch impulse of the AD9740ARUZRL7?
The glitch impulse is 5 pV-s.
- What are the typical output rise and fall times of the AD9740ARUZRL7?
The typical output rise and fall times are both 2.5 ns (10% to 90%).
