Overview
The AD9750ARUZ is a 10-bit resolution, wideband, second-generation member of the TxDAC series of high-performance, low-power CMOS digital-to-analog converters (DACs) produced by Analog Devices Inc. This device is specifically optimized for the transmit signal path of communication systems. It features a flexible single-supply operating range of 4.5 V to 5.5 V and is well-suited for portable and low-power applications due to its low power dissipation, which can be further reduced to 65 mW without significant performance degradation by lowering the full-scale current output. Additionally, a power-down mode reduces the standby power dissipation to approximately 20 mW.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 10 | Bits | ||
| Integral Linearity Error (INL) | -1.0 | ±0.1 | +1.0 | LSB |
| Differential Nonlinearity (DNL) | -0.5 | ±0.1 | +0.5 | LSB |
| Full-Scale Output Current | 2.0 | 20.0 | mA | |
| Output Compliance Range | -1.0 | 1.25 | V | |
| Output Resistance | 100 kΩ | |||
| Output Capacitance | 5 pF | |||
| Reference Voltage | 1.14 | 1.20 | 1.26 | V |
| Maximum Output Update Rate (fCLOCK) | 125 | MSPS | ||
| Output Settling Time (tST) | 35 | ns | ||
| Supply Voltage | 4.5 | 5 | 5.5 | V |
Key Features
- 10-bit resolution with exceptional AC and DC performance.
- Supports update rates up to 125 MSPS, making it suitable for high-speed applications.
- Flexible single-supply operating range of 4.5 V to 5.5 V, ideal for portable and low-power applications.
- Low power dissipation, with the ability to reduce power to 65 mW by lowering the full-scale current output and a power-down mode that reduces standby power to approximately 20 mW.
- Differential current outputs with matching to ensure enhanced dynamic performance in differential output configurations.
- On-chip reference and control amplifier for maximum accuracy and flexibility, allowing the use of internal or external reference voltages.
- Support for various single-ended or differential circuit topologies.
- Pin compatible with other TxDAC family members (8-, 12-, and 14-bit DACs), facilitating easy component selection based on performance, resolution, and cost.
Applications
- Wideband communication transmit channels.
- Direct IF (Intermediate Frequency) applications.
- Base stations.
- Wireless local loop systems.
- Digital radio links.
- Direct digital synthesis (DDS).
- Instrumentation.
Q & A
- What is the resolution of the AD9750ARUZ?
The AD9750ARUZ has a 10-bit resolution.
- What is the maximum output update rate of the AD9750ARUZ?
The maximum output update rate is up to 125 MSPS.
- What is the supply voltage range for the AD9750ARUZ?
The supply voltage range is from 4.5 V to 5.5 V.
- How can the power consumption of the AD9750ARUZ be reduced?
The power consumption can be reduced by lowering the full-scale current output, and the device also features a power-down mode that reduces standby power to approximately 20 mW.
- What types of output configurations does the AD9750ARUZ support?
The AD9750ARUZ supports both single-ended and differential output configurations.
- What is the typical output settling time of the AD9750ARUZ?
The typical output settling time is 35 ns.
- Can the AD9750ARUZ use external reference voltages?
Yes, the AD9750ARUZ can be driven by either the on-chip reference or by a variety of external reference voltages.
- What is the output compliance range of the AD9750ARUZ?
The output compliance range is -1.0 V to 1.25 V.
- What package options are available for the AD9750ARUZ?
The AD9750ARUZ is available in 28-lead TSSOP and 28-lead SOIC (Wide) packages.
- What are some common applications of the AD9750ARUZ?
Common applications include wideband communication transmit channels, direct IF, base stations, wireless local loop, digital radio links, direct digital synthesis (DDS), and instrumentation.
