Overview
The AD9760AR, 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 AD9760AR 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 single-supply operation from 2.7 V to 5.5 V, making it suitable for portable and low-power applications.
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 |
| Power Dissipation @ 5 V | - | - | 175 | mW |
| Power Dissipation @ 3 V | - | - | 45 | mW |
| Power-Down Mode @ 5 V | - | - | 25 | mW |
| Supply Voltage Range | 2.7 | - | 5.5 | V |
| Full-Scale Output Current | 2 | - | 20 | mA |
| Output Impedance | - | - | > 100 kΩ | Ω |
Key Features
- High-performance, low-power CMOS DAC with 10-bit resolution and up to 125 MSPS update rate.
- Segmented current source architecture and proprietary switching technique for enhanced dynamic performance.
- Edge-triggered input latches and a 1.2 V temperature-compensated bandgap reference.
- Differential current outputs supporting single-ended or differential applications.
- Flexible supply options supporting +3 V and +5 V CMOS logic families.
- Adjustable full-scale current output from 2 mA to 20 mA with excellent dynamic performance.
- Low power dissipation with a power-down mode reducing standby power to approximately 25 mW.
- Available in 28-lead SOIC and TSSOP packages, specified for operation over the industrial temperature range.
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 operation and low power dissipation.
Q & A
- What is the resolution of the AD9760AR DAC?
The AD9760AR has a 10-bit resolution.
- What is the maximum output update rate of the AD9760AR?
The maximum output update rate is up to 125 MSPS.[
- What are the supply voltage options for the AD9760AR?
The AD9760AR supports a single-supply operation from 2.7 V to 5.5 V.[
- What is the full-scale output current range of the AD9760AR?
The full-scale output current can be adjusted from 2 mA to 20 mA.[
- What are the package options for the AD9760AR?
The AD9760AR is available in 28-lead SOIC and TSSOP packages.[
- What is the power dissipation of the AD9760AR at 5 V and 3 V?
The power dissipation is 175 mW at 5 V and 45 mW at 3 V. In power-down mode, it reduces to approximately 25 mW at 5 V.[
- What are the key applications of the AD9760AR?
The AD9760AR is used in communication systems, direct digital synthesis (DDS), instrumentation, and other low-power applications.[
- How does the AD9760AR enhance dynamic performance?
The AD9760AR uses a segmented current source architecture and a proprietary switching technique to enhance dynamic performance.[
- Can the AD9760AR be used in differential output configurations?
Yes, the AD9760AR provides differential current outputs that support single-ended or differential applications, ensuring enhanced dynamic performance in differential output configurations.[
- What is the output impedance of the AD9760AR?
The output impedance is greater than 100 kΩ.[
- Is the AD9760AR suitable for industrial temperature ranges?
Yes, the AD9760AR is specified for operation over the industrial temperature range.[
