Overview
The AD9760ARZ, produced by Analog Devices Inc., is a high-performance, low-power CMOS digital-to-analog converter (DAC) with a 10-bit resolution. It is part of the TxDAC series, which is optimized for the transmit signal path of communication systems. The AD9760 is manufactured using an advanced CMOS process and features a segmented current source architecture combined with a proprietary switching technique to enhance dynamic performance. It includes edge-triggered input latches and a 1.2 V temperature-compensated bandgap reference, providing a complete monolithic DAC solution. The device supports flexible supply options for +3 V and +5 V CMOS logic families and is available in 28-lead SOIC and TSSOP packages.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 10 | Bits | ||
| Integral Linearity Error (INL) | -1.0 | ±0.5 | +1.0 | LSB |
| Differential Nonlinearity (DNL) | -0.5 | ±0.25 | +0.5 | LSB |
| Maximum Output Update Rate (fCLOCK) | 125 | MSPS | ||
| Output Settling Time (tST) (to 0.1%) | 35 | ns | ||
| Output Propagation Delay (tPD) | 1 | ns | ||
| Full-Scale Output Current | 2 | 20 | mA | |
| Output Impedance | > 100 kΩ | Ω | ||
| Supply Voltage Range | 2.7 | 5.5 | V | |
| Power Dissipation @ 5 V | 175 | mW | ||
| Power Dissipation @ 3 V | 45 | mW | ||
| Power-Down Mode @ 5 V | 25 | mW |
Key Features
- High-performance, low-power CMOS DAC with 10-bit resolution.
- Segmented current source architecture and proprietary switching technique for enhanced dynamic performance.
- Edge-triggered input latches and 1.2 V temperature-compensated bandgap reference.
- Differential current outputs supporting single-ended or differential applications.
- Flexible supply options for +3 V and +5 V CMOS logic families.
- Adjustable full-scale current over a 2 mA to 20 mA range with excellent dynamic performance.
- Low power dissipation with power-down mode reducing standby power to approximately 25 mW.
- Available in 28-lead SOIC and TSSOP packages.
Applications
- Communication systems: basestations, set-top boxes, digital radio links.
- Direct digital synthesis (DDS).
- Instrumentation.
- Portable and low-power applications due to its flexible single-supply operating range and low power dissipation.
Q & A
- What is the resolution of the AD9760ARZ DAC?
The AD9760ARZ has a 10-bit resolution.
- What is the maximum output update rate of the AD9760ARZ?
The maximum output update rate is 125 MSPS.
- What are the supply voltage options for the AD9760ARZ?
The AD9760ARZ supports supply voltages ranging from 2.7 V to 5.5 V.
- What is the full-scale output current range of the AD9760ARZ?
The full-scale output current can be adjusted from 2 mA to 20 mA.
- What are the package options for the AD9760ARZ?
The AD9760ARZ is available in 28-lead SOIC and TSSOP packages.
- What is the power dissipation of the AD9760ARZ at 5 V and 3 V?
The power dissipation is 175 mW at 5 V and 45 mW at 3 V.
- Does the AD9760ARZ have a power-down mode?
Yes, the AD9760ARZ has a power-down mode that reduces standby power dissipation to approximately 25 mW at 5 V.
- What are the typical applications of the AD9760ARZ?
The AD9760ARZ is typically used in communication systems, direct digital synthesis (DDS), and instrumentation.
- How does the AD9760ARZ enhance dynamic performance?
The AD9760ARZ uses a segmented current source architecture and a proprietary switching technique to enhance dynamic performance.
- Can the AD9760ARZ be driven by external reference voltages?
Yes, the AD9760ARZ can be driven by the on-chip reference or by a variety of external reference voltages.
