Overview
The AD9762ARRL is a 12-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. It is part of the TxDAC family, which is optimized for the transmit signal path of communication systems. This DAC offers high performance, low power consumption, and a flexible single-supply operating range of 2.7 V to 5.5 V. The AD9762ARRL is particularly noted for its exceptional AC and DC performance, supporting update rates up to 125 MSPS.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 12 | Bits | ||
| Update Rate | 125 | MSPS | ||
| Settling Time | 35 | ns | ||
| Output Current Range | 2 | 20 | mA | |
| Power Dissipation @ 5V | 175 | mW | ||
| Power Dissipation @ 3V | 45 | mW | ||
| Power-Down Mode @ 5V | 25 | mW | ||
| Integral Linearity Error (INL) @ 25°C | -2.5 | ±0.75 | +2.5 | LSB |
| Differential Nonlinearity (DNL) @ 25°C | -1.5 | ±0.5 | +1.5 | LSB |
| Output Noise @ 20 mA | 50 | pA/√Hz | ||
| Output Noise @ 2 mA | 30 | pA/√Hz | ||
| Spurious-Free Dynamic Range to Nyquist @ 25 MSPS, 1 MHz | 73 | 79 | dBc | |
| Supply Voltage Range | 2.7 | 5.5 | V | |
| Operating Temperature Range | -40 | 85 | °C | |
| Package Type | 28-SOIC, 28-TSSOP |
Key Features
- Member of the pin-compatible TxDAC product family, allowing for easy component selection based on performance, resolution, and cost.
- 12-bit resolution with differential current outputs supporting single-ended or differential applications.
- Update rate of up to 125 MSPS with a settling time of 35 ns.
- Flexible single-supply operating range of 2.7 V to 5.5 V.
- On-chip 1.20 V reference and control amplifier for maximum accuracy and flexibility.
- Full-scale current adjustment range of 2 mA to 20 mA.
- Low power consumption with power-down mode available.
- Edge-triggered latches and parallel data interface.
Applications
- Communication transmit channels: basestations (single/multichannel applications), ADSL/HFC modems.
- Direct digital synthesis (DDS).
- Instrumentation.
Q & A
- What is the resolution of the AD9762ARRL DAC? The AD9762ARRL has a 12-bit resolution.
- What is the maximum update rate of the AD9762ARRL? The maximum update rate is 125 MSPS.
- What is the typical settling time of the AD9762ARRL? The typical settling time is 35 ns.
- What is the range of the full-scale output current of the AD9762ARRL? The full-scale output current can be adjusted from 2 mA to 20 mA.
- What is the supply voltage range for the AD9762ARRL? The supply voltage range is from 2.7 V to 5.5 V.
- What types of packages are available for the AD9762ARRL? The AD9762ARRL is available in 28-SOIC and 28-TSSOP packages.
- What are the key applications of the AD9762ARRL? Key applications include communication transmit channels, direct digital synthesis (DDS), and instrumentation.
- Does the AD9762ARRL support differential output configurations? Yes, it supports differential output configurations with matching between the two current outputs for enhanced dynamic performance.
- What is the power dissipation of the AD9762ARRL at 5 V and 3 V? At 5 V, the power dissipation is 175 mW, and at 3 V, it is 45 mW.
- Is the AD9762ARRL RoHS compliant? No, the AD9762ARRL is not RoHS compliant.
