Overview
The AD9740ARUZ is a 10-bit resolution, wideband, third-generation member of the TxDAC series of high-performance, low-power CMOS digital-to-analog converters (DACs) from Analog Devices Inc. This device is specifically 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 AD9740ARUZ offers exceptional AC and DC performance, supporting update rates up to 210 MSPS, making it well-suited for high-speed communication applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 10 Bits | |||
| Integral Linearity Error (INL) | -2.5 | ±0.5 | +2.5 | LSB |
| Differential Nonlinearity (DNL) | -1.3 | ±0.4 | +1.3 | LSB |
| Full-Scale Output Current | 2 | 20 | mA | |
| Output Compliance Range | -1 | +1.25 | V | |
| Output Resistance | 100 kΩ | |||
| Output Capacitance | 5 pF | |||
| Power Dissipation (Typical) | 145 mW | |||
| Power-Down Mode Power Dissipation | Approx. 15 mW | |||
| Clock Input Rate | Up to 210 MSPS | |||
Key Features
- High-speed, single-ended CMOS clock input supporting up to 210 MSPS conversion rate.
- Low power operation: Complete CMOS DAC function operates on 145 mW from a 2.7 V to 3.6 V single supply, with the option to reduce power dissipation further by lowering the full-scale current output.
- Power-down mode reduces standby power dissipation to approximately 15 mW.
- On-chip 1.2 V temperature-compensated band gap voltage reference.
- Segmented current source architecture combined with a proprietary switching technique to reduce spurious components and enhance dynamic performance.
- Edge-triggered input latches and support for 3 V CMOS logic families.
- Available in industry-standard 28-lead SOIC, 28-lead TSSOP, and 32-lead LFCSP packages.
Applications
The AD9740ARUZ is optimized for the transmit signal path of communication systems, making it suitable for a variety of high-speed communication applications, including:
- Wireless communication systems.
- Cable infrastructure.
- Radar and military communication systems.
- Portable and low-power communication devices.
Q & A
- What is the resolution of the AD9740ARUZ DAC?
The AD9740ARUZ has a 10-bit resolution.
- What is the maximum clock input rate supported by the AD9740ARUZ?
The AD9740ARUZ supports clock input rates up to 210 MSPS.
- What are the typical power consumption and power-down mode power dissipation of the AD9740ARUZ?
The typical power consumption is 145 mW, and the power-down mode power dissipation is approximately 15 mW.
- What types of packages are available for the AD9740ARUZ?
The AD9740ARUZ is available in 28-lead SOIC, 28-lead TSSOP, and 32-lead LFCSP packages.
- Does the AD9740ARUZ support 3 V CMOS logic families?
Yes, the AD9740ARUZ supports 3 V CMOS logic families.
- What is the full-scale output current range of the AD9740ARUZ?
The full-scale output current range is from 2 mA to 20 mA.
- How does the AD9740ARUZ reduce spurious components and enhance dynamic performance?
The AD9740ARUZ uses a segmented current source architecture combined with a proprietary switching technique.
- Is the AD9740ARUZ suitable for portable and low-power applications?
Yes, the AD9740ARUZ is well-suited for portable and low-power applications due to its low power dissipation.
- What is the output compliance range of the AD9740ARUZ?
The output compliance range is from -1 V to +1.25 V.
- Does the AD9740ARUZ have an on-chip voltage reference?
Yes, the AD9740ARUZ includes a 1.2 V temperature-compensated band gap voltage reference.
