Overview
The AD9764ARUZ is a high-performance, low-power CMOS digital-to-analog converter (DAC) produced by Analog Devices Inc. It is part of the TxDAC series, which includes pin-compatible 8-, 10-, 12-, and 14-bit DACs. The AD9764 is specifically optimized for the transmit signal path of communication systems, offering exceptional AC and DC performance. It supports update rates up to 125 MSPS and operates on a flexible single-supply voltage range of 2.7 V to 5.5 V, making it suitable for portable and low-power applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 14 bits | |||
| Maximum Output Update Rate (fCLOCK) | 125 MSPS | |||
| Output Settling Time (tST) (to 0.1%) | 35 ns | ns | ||
| Output Propagation Delay (tPD) | 1 ns | ns | ||
| Full-Scale Output Current (IOUTFS) | 20 mA | mA | ||
| Output Impedance | >100 kΩ | Ω | ||
| Supply Voltage Range | 2.7 V | 5.5 V | V | |
| Power Dissipation (typical) | 45 mW (reduced power mode) | mW | ||
| Power-Down Mode Power Dissipation | 25 mW | mW | ||
| Package Type | 28-Lead TSSOP | |||
Key Features
- High-speed operation with update rates up to 125 MSPS.
- Flexible single-supply operating range of 2.7 V to 5.5 V.
- Low power dissipation, with a typical power consumption of 45 mW in reduced power mode and 25 mW in power-down mode.
- Segmented current source architecture combined with proprietary switching techniques to enhance dynamic performance.
- Edge-triggered input latches and a 1.2 V temperature-compensated bandgap reference for accurate and stable operation.
- Differential current outputs supporting single-ended or differential applications.
- Adjustable full-scale current output from 2 mA to 20 mA, allowing for flexible gain settings.
- CMOS compatible digital interface supporting +3 V and +5 V logic families.
Applications
- Communication transmit channels: base stations, ADSL/HFC modems.
- Instrumentation: high-speed data acquisition and signal generation.
- Wireless local loops and digital radio links.
- Direct digital synthesis (DDS) and other high-speed signal processing applications.
Q & A
- What is the resolution of the AD9764ARUZ DAC?
The AD9764ARUZ has a resolution of 14 bits.
- What is the maximum update rate of the AD9764ARUZ?
The maximum update rate is up to 125 MSPS.
- What is the typical power consumption of the AD9764ARUZ in reduced power mode?
The typical power consumption in reduced power mode is 45 mW.
- What is the output impedance of the AD9764ARUZ?
The output impedance is greater than 100 kΩ.
- What are the supply voltage options for the AD9764ARUZ?
The AD9764ARUZ can operate on a single supply voltage ranging from 2.7 V to 5.5 V.
- How does the AD9764ARUZ support different logic families?
The AD9764ARUZ supports +3 V and +5 V CMOS logic families.
- What is the package type of the AD9764ARUZ?
The AD9764ARUZ is available in a 28-Lead TSSOP package.
- Can the full-scale output current of the AD9764ARUZ be adjusted?
- What are some common applications of the AD9764ARUZ?
- How does the power-down mode affect the power consumption of the AD9764ARUZ?
