Overview
The AD9752ARU, produced by Analog Devices Inc., is a 12-bit resolution, high-performance digital-to-analog converter (DAC) that is part of the TxDAC series. This second-generation DAC is specifically optimized for the transmit signal path of communication systems. It offers exceptional AC and DC performance, supporting update rates up to 125 MSPS. The AD9752ARU is designed for low power applications, with a flexible single-supply operating range of 4.5 V to 5.5 V and low power dissipation. It features a segmented current source architecture combined with a proprietary switching technique to enhance dynamic performance and reduce spurious components.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 12 | Bits | ||
| Integral Linearity Error (INL) | -1.5 | ±0.5 | +1.5 | LSB (at TA = +25°C) |
| Differential Nonlinearity (DNL) | -0.75 | ±0.25 | +0.75 | LSB (at TA = +25°C) |
| Full-Scale Output Current | 2.0 | 20.0 | mA | |
| Output Compliance Range | -1.0 | 1.25 | V | |
| Update Rate | 125 | MSPS | ||
| Power Supply Range | 4.5 | 5.5 | V | |
| Power Dissipation (Active) | 65 | mW | ||
| Power Dissipation (Standby) | 20 | mW |
Key Features
- High-speed, 12-bit resolution with update rates up to 125 MSPS.
- Segmented current source architecture with proprietary switching technique to reduce spurious components and enhance dynamic performance.
- Edge-triggered input latches and a 1.2 V temperature-compensated bandgap reference for a complete monolithic DAC solution.
- Differential current outputs with high output impedance (>100 kΩ) and matching between the two current outputs for enhanced dynamic performance in differential output configurations.
- Flexible full-scale current adjustment from 2 mA to 20 mA via an external resistor.
- Low power operation with a power-down mode to reduce standby power dissipation.
- Support for +2.7 V to +5.5 V CMOS logic families.
- Available in 28-lead SOIC and TSSOP packages.
Applications
- Transmit signal path of communication systems.
- Portable and low power applications.
- Wireless communication systems.
- Baseband and IF signal processing.
- Direct digital synthesis (DDS) systems.
Q & A
- What is the resolution of the AD9752ARU?
The AD9752ARU has a 12-bit resolution.
- What is the maximum update rate of the AD9752ARU?
The AD9752ARU supports update rates up to 125 MSPS.
- What is the power supply range for the AD9752ARU?
The AD9752ARU operates over a power supply range of 4.5 V to 5.5 V.
- How can the full-scale current of the AD9752ARU be adjusted?
The full-scale current can be adjusted from 2 mA to 20 mA via an external resistor connected to the full-scale adjust (FS ADJ) pin.
- What is the output compliance range of the AD9752ARU?
The output compliance range is -1.0 V to 1.25 V.
- Does the AD9752ARU have a power-down mode?
Yes, the AD9752ARU has a power-down mode that reduces the standby power dissipation to approximately 20 mW.
- What types of packages are available for the AD9752ARU?
The AD9752ARU is available in 28-lead SOIC and TSSOP packages.
- What is the typical power dissipation of the AD9752ARU in active mode?
The typical power dissipation in active mode is approximately 65 mW.
- Can the AD9752ARU be driven by an external reference voltage?
Yes, the AD9752ARU can be driven by an external reference voltage, and the internal reference can be disabled if needed.
- What type of logic families does the AD9752ARU support?
The AD9752ARU supports +2.7 V to +5.5 V CMOS logic families.
