Overview
The AD9762ARURL is a 12-bit, high-performance, low-power CMOS digital-to-analog converter (DAC) from Analog Devices Inc. It is part of the TxDAC series, which is optimized for the transmit signal path of communication systems. This DAC offers exceptional AC and DC performance, supporting update rates up to 125 MSPS. The AD9762 is designed for low power consumption, with a flexible single-supply operating range of 2.7 V to 5.5 V, making it suitable for portable and low power applications.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 12 | Bits | ||
| Integral Linearity Error (INL) | -2.5 | ±0.75 | +2.5 | LSB (at 25°C) |
| Differential Nonlinearity (DNL) | -1.5 | ±0.5 | +1.5 | LSB (at 25°C) |
| Maximum Output Update Rate (fCLOCK) | 125 | MSPS | ||
| Output Settling Time (tST) | 35 | ns (to 0.1%) | ||
| Output Propagation Delay (tPD) | 1 | ns | ||
| Supply Voltage | 2.7 | 5.5 | V | |
| Power Dissipation | 175 | mW (at 5 V) | ||
| Power-Down Mode | 25 | mW (at 5 V) | ||
| Output Impedance | > 100 kΩ | |||
| Full-Scale Output Current | 2 | 20 | mA |
Key Features
- High-performance, 12-bit resolution DAC with update rates up to 125 MSPS.
- Flexible single-supply operating range of 2.7 V to 5.5 V, supporting both +3 V and +5 V CMOS logic families.
- Low power dissipation: 175 mW at 5 V and 45 mW at 3 V, with a power-down mode reducing standby power to approximately 25 mW.
- Differential current outputs with matching to ensure enhanced dynamic performance in differential output configurations.
- On-chip 1.2 V temperature-compensated bandgap reference and control amplifier for maximum accuracy and flexibility.
- Edge-triggered input latches and segmented current source architecture with proprietary switching technique to reduce spurious components.
- Available in 28-pin SOIC and TSSOP packages.
Applications
- Communication systems: basestations (single/multichannel applications), ADSL/HFC modems.
- Direct Digital Synthesis (DDS).
- Instrumentation.
Q & A
- What is the resolution of the AD9762ARURL DAC?
The AD9762ARURL has a 12-bit resolution.
- What is the maximum output update rate of the AD9762ARURL?
The maximum output update rate is 125 MSPS.
- What is the typical output settling time of the AD9762ARURL?
The typical output settling time is 35 ns (to 0.1%).
- What is the supply voltage range for the AD9762ARURL?
The supply voltage range is from 2.7 V to 5.5 V.
- How much power does the AD9762ARURL consume in normal operation at 5 V?
The power dissipation is typically 175 mW at 5 V.
- What is the power consumption in power-down mode at 5 V?
The power consumption in power-down mode is approximately 25 mW at 5 V.
- What types of packages are available for the AD9762ARURL?
The AD9762ARURL is available in 28-pin SOIC and TSSOP packages.
- What is the full-scale output current range of the AD9762ARURL?
The full-scale output current can be adjusted from 2 mA to 20 mA.
- Does the AD9762ARURL have differential current outputs?
Yes, the AD9762ARURL provides differential current outputs.
- What are some common applications of the AD9762ARURL?
Common applications include communication systems, direct digital synthesis (DDS), and instrumentation.
