Overview
The AD9742ARUZRL7 is a 12-bit, high-speed digital-to-analog converter (DAC) from Analog Devices Inc., part of the TxDAC family. This DAC is optimized for the transmit signal path of communication systems and offers exceptional AC and DC performance. It supports update rates up to 210 MSPS, making it suitable for high-performance applications. The AD9742 is known for its low power dissipation, which can be further reduced to 60 mW with a slight degradation in performance, and it includes a power-down mode to minimize standby power to approximately 15 mW.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 12 bits | |||
| Update Rate | Up to 210 MSPS | |||
| Supply Voltage | 2.7 | 3.3 | 3.6 | V |
| Power Dissipation | 135 | 145 | mW | |
| Standby Power Dissipation | Approximately 15 mW | |||
| Output Current Full Scale | Up to 20 mA | |||
| Temperature Range | -40°C to 85°C | |||
| Package Type | 28-Lead TSSOP | |||
Key Features
- High-speed, single-ended CMOS clock input supporting up to 210 MSPS conversion rate.
- Low power operation with the ability to reduce full-scale current output for lower power consumption and a sleep mode for low power idle periods.
- On-chip 1.2 V temperature compensated band gap voltage reference.
- Edge-triggered input latches and segmented current source architecture combined with a proprietary switching technique to enhance dynamic performance.
- Support for 3 V CMOS logic families.
- Industry-standard packages including 28-lead TSSOP, 28-lead SOIC, and 32-lead LFCSP.
Applications
The AD9742ARUZRL7 is specifically optimized for the transmit signal path of communication systems. It is well-suited for various applications including:
- Wireless communication systems
- Baseband and IF signal processing
- Portable and low power applications
- High-performance data acquisition systems
Q & A
- What is the resolution of the AD9742ARUZRL7 DAC?
The AD9742ARUZRL7 has a 12-bit resolution.
- What is the maximum update rate of the AD9742ARUZRL7?
The maximum update rate is up to 210 MSPS.
- What is the typical power dissipation of the AD9742ARUZRL7?
The typical power dissipation is 135 mW, with a maximum of 145 mW.
- How can the power consumption of the AD9742ARUZRL7 be reduced?
The power consumption can be reduced by lowering the full-scale current output or by using the power-down mode.
- What type of voltage reference does the AD9742ARUZRL7 include?
The AD9742ARUZRL7 includes a 1.2 V temperature compensated band gap voltage reference.
- What are the supported logic families for the digital inputs?
The digital inputs support 3 V CMOS logic families.
- What are the available package types for the AD9742ARUZRL7?
The available package types include 28-lead TSSOP, 28-lead SOIC, and 32-lead LFCSP.
- What is the operating temperature range of the AD9742ARUZRL7?
The operating temperature range is -40°C to 85°C.
- What are some typical applications for the AD9742ARUZRL7?
Typical applications include wireless communication systems, baseband and IF signal processing, portable and low power applications, and high-performance data acquisition systems.
- How does the AD9742ARUZRL7 enhance dynamic performance?
The AD9742ARUZRL7 uses a segmented current source architecture combined with a proprietary switching technique to enhance dynamic performance.
