Overview
The AD9760ARU50RL7 is a 10-bit resolution digital-to-analog converter (DAC) from Analog Devices Inc., part of the TxDAC series. This high-performance, low-power CMOS DAC is designed for applications requiring high dynamic performance and low power consumption. The AD9760-50 variant, which the AD9760ARU50RL7 is based on, is specified for 50 MSPS operation, making it suitable for various communication and instrumentation systems. The device is manufactured using an advanced CMOS process and features a proprietary switching technique to enhance dynamic performance beyond traditional bipolar or BiCMOS devices.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 10 | Bits | ||
| Maximum Output Update Rate (fCLOCK) | 50 | 60 | MSPS | |
| Output Settling Time (tST) (to 0.1%) | 35 | ns | ||
| Output Propagation Delay (tPD) | 1 | ns | ||
| Glitch Impulse | 5 | pV-s | ||
| Output Rise Time (10% to 90%) | 2.5 | ns | ||
| Output Fall Time (10% to 90%) | 2.5 | ns | ||
| Output Noise (IOUTFS = 20 mA) | 50 | pA/√Hz | ||
| Supply Voltage | 2.7 | 5.5 | V | |
| Power Dissipation | 45 | 175 | mW | |
| Power-Down Mode | 25 | mW | ||
| Integral Nonlinearity (INL) | -1.0 | ±0.5 | +1.0 | LSB |
| Differential Nonlinearity (DNL) | -0.5 | ±0.25 | +0.5 | LSB |
Key Features
- High Dynamic Performance: The AD9760ARU50RL7 features excellent spurious-free dynamic range (SFDR) and low output noise, making it suitable for high-performance applications.
- Flexible Supply Options: The device operates from a single supply voltage ranging from 2.7 V to 5.5 V, supporting both +3 V and +5 V CMOS logic families.
- Low Power Consumption: With a power dissipation of 45 mW at 3 V and a power-down mode of 25 mW, it is ideal for low-power and portable applications.
- Edge-Triggered Input Latches: The device includes edge-triggered input CMOS latches that interface readily with +3 V and +5 V CMOS logic families.
- On-Chip Reference and Control Amplifier: The AD9760ARU50RL7 includes an on-chip 1.20 V reference and a control amplifier that allows for a wide adjustment span of the full-scale current output.
- Differential Current Outputs: The device provides differential current outputs, supporting single-ended or differential circuit topologies.
Applications
- Communication Systems: The AD9760ARU50RL7 is optimized for the transmit signal path in communication systems, including basestations and set-top boxes.
- Digital Radio Links: It is suitable for digital radio link applications due to its high dynamic performance and low power consumption.
- Direct Digital Synthesis (DDS): The device can be used in DDS applications where high accuracy and dynamic performance are required.
- Instrumentation: The AD9760ARU50RL7 is also used in various instrumentation applications where precision and low noise are critical.
Q & A
- What is the resolution of the AD9760ARU50RL7?
The AD9760ARU50RL7 has a 10-bit resolution.
- What is the maximum output update rate of the AD9760ARU50RL7?
The maximum output update rate is 50 MSPS for the AD9760-50 variant.
- What is the typical output settling time of the AD9760ARU50RL7?
The typical output settling time is 35 ns to 0.1%.
- What is the power dissipation of the AD9760ARU50RL7 in normal operation?
The power dissipation is typically 45 mW at 3 V and up to 175 mW at 5 V.
- Does the AD9760ARU50RL7 have a power-down mode?
Yes, the device has a power-down mode that reduces the standby power dissipation to approximately 25 mW.
- What are the supply voltage options for the AD9760ARU50RL7?
The device operates from a single supply voltage ranging from 2.7 V to 5.5 V.
- What type of input latches does the AD9760ARU50RL7 use?
The device uses edge-triggered input CMOS latches.
- Can the AD9760ARU50RL7 be used in differential output configurations?
Yes, the device provides differential current outputs to support single-ended or differential circuit topologies.
- What are some common applications of the AD9760ARU50RL7?
Common applications include communication systems, digital radio links, direct digital synthesis (DDS), and various instrumentation applications.
- What is the package type of the AD9760ARU50RL7?
The device is available in a 28-lead TSSOP package.
