Overview
The AD9762ARZ is a 12-bit, high-performance digital-to-analog converter (DAC) from Analog Devices Inc., part of the TxDAC series. This device is optimized for the transmit signal path of communication systems and offers exceptional AC and DC performance. It supports update rates up to 125 MSPS, making it suitable for high-speed applications. The AD9762ARZ features a flexible single-supply operating range of 2.7 V to 5.5 V and low power dissipation, making it well-suited 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) |
| Output Update Rate (fCLOCK) | - | - | 125 | MSPS |
| Output Settling Time (tST) | - | 35 | - | ns (to 0.1%) |
| Supply Voltage | 2.7 | - | 5.5 | V |
| Power Dissipation | - | 45 | 175 | mW |
| Output Impedance | - | - | >100 kΩ | - |
| Full-Scale Output Current | 2 | - | 20 | mA |
Key Features
- High-performance, low-power CMOS DAC with 12-bit resolution.
- Supports update rates up to 125 MSPS.
- Flexible single-supply operating range of 2.7 V to 5.5 V.
- Low power dissipation: 45 mW at 3 V and 175 mW at 5 V.
- Power-down mode reduces standby power to approximately 25 mW.
- Segmented current source architecture and proprietary switching technique for enhanced dynamic performance.
- Edge-triggered input latches and a 1.2 V temperature-compensated bandgap reference.
- Differential current outputs with matching for enhanced dynamic performance in differential output configurations.
- Adjustable full-scale current output from 2 mA to 20 mA.
- 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 AD9762ARZ DAC?
The AD9762ARZ has a 12-bit resolution.
- What is the maximum update rate of the AD9762ARZ?
The AD9762ARZ supports update rates up to 125 MSPS.
- What is the operating voltage range of the AD9762ARZ?
The AD9762ARZ operates within a single-supply voltage range of 2.7 V to 5.5 V.
- How much power does the AD9762ARZ consume?
The power dissipation is 45 mW at 3 V and 175 mW at 5 V, with a power-down mode reducing standby power to approximately 25 mW.
- What is the full-scale output current range of the AD9762ARZ?
The full-scale output current can be adjusted from 2 mA to 20 mA.
- What types of packages are available for the AD9762ARZ?
The AD9762ARZ is available in 28-pin SOIC and TSSOP packages.
- What are the key applications of the AD9762ARZ?
The AD9762ARZ is used in communication systems, direct digital synthesis (DDS), and instrumentation.
- How does the AD9762ARZ enhance dynamic performance?
The AD9762ARZ uses a segmented current source architecture and a proprietary switching technique to enhance dynamic performance.
- Does the AD9762ARZ have built-in reference and control amplifier?
Yes, the AD9762ARZ includes an on-chip 1.2 V temperature-compensated bandgap reference and a control amplifier.
- Can the AD9762ARZ be used in differential output configurations?
Yes, the AD9762ARZ provides differential current outputs with matching for enhanced dynamic performance in differential output configurations.
