Overview
The AD9742ARURL7, produced by Analog Devices Inc., is a 12-bit, high-speed digital-to-analog converter (DAC) optimized for the transmit signal path of communication systems. It is part of the TxDAC family, which includes pin-compatible 8-, 10-, 12-, and 14-bit DACs, allowing for flexible component selection based on performance, resolution, and cost. The AD9742 offers exceptional AC and DC performance, supporting update rates up to 210 MSPS, making it suitable for high-speed applications. Its low power dissipation and power-down mode make it well-suited for portable and low-power applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | - | 12 bits | - | - |
| Update Rate | - | - | 210 MSPS | - |
| Supply Voltage | 2.7 V | - | 3.6 V | V |
| Power Dissipation (Full Operation) | - | - | 135 mW | mW |
| Power Dissipation (Sleep Mode) | - | - | 15 mW | mW |
| Full-Scale Current Output | - | - | 20 mA | mA |
| Package Types | - | - | 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, with a sleep mode reducing standby power to approximately 15 mW.
- On-chip 1.2 V temperature-compensated band gap voltage reference.
- Edge-triggered input latches and segment decoding logic circuitry.
- Segmented current source architecture combined with proprietary switching technique to reduce spurious components and enhance dynamic performance.
- Industry-standard package options including 28-lead SOIC, 28-lead TSSOP, and 32-lead LFCSP.
Applications
The AD9742ARURL7 is specifically designed for the transmit signal path of communication systems. It is suitable for various high-speed applications, including:
- Wireless communication systems.
- Cable infrastructure.
- Radar systems.
- Instrumentation and test equipment.
- Portable and low-power communication devices.
Q & A
- What is the resolution of the AD9742ARURL7?
The AD9742ARURL7 has a resolution of 12 bits.
- What is the maximum update rate of the AD9742ARURL7?
The maximum update rate is up to 210 MSPS.
- What are the supported supply voltage ranges for the AD9742ARURL7?
The supply voltage range is from 2.7 V to 3.6 V.
- How much power does the AD9742ARURL7 consume in full operation?
The power dissipation in full operation is approximately 135 mW.
- What is the power consumption in sleep mode?
The power dissipation in sleep mode is approximately 15 mW.
- What types of data coding does the AD9742ARURL7 support?
The AD9742ARURL7 supports two's complement and straight binary data coding.
- What is the full-scale current output of the AD9742ARURL7?
The full-scale current output can be set up to 20 mA.
- What package types are available for the AD9742ARURL7?
The available package types include 28-lead SOIC, 28-lead TSSOP, and 32-lead LFCSP.
- Does the AD9742ARURL7 have an on-chip voltage reference?
Yes, it includes a 1.2 V temperature-compensated band gap voltage reference.
- What are the typical applications of the AD9742ARURL7?
Typical applications include wireless communication systems, cable infrastructure, radar systems, instrumentation and test equipment, and portable communication devices.
