Overview
The AD9760ARU, 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 AD9760ARU 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 a 28-lead TSSOP package.
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 | - | - | 20 | mA |
| Output Impedance | - | - | > 100 kΩ | - |
| 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.
- Flexible supply options supporting +3 V and +5 V CMOS logic families.
- Differential current outputs with > 100 kΩ output impedance, suitable for single-ended or differential applications.
- Adjustable full-scale current over a 2 mA to 20 mA range using an internal control amplifier.
- Low power dissipation with a power-down mode reducing standby power to approximately 25 mW.
- Available in 28-lead TSSOP package.
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 AD9760ARU?
The AD9760ARU has a 10-bit resolution.
- What is the maximum output update rate of the AD9760ARU?
The maximum output update rate is 125 MSPS.
- What are the supply voltage options for the AD9760ARU?
The AD9760ARU supports +3 V and +5 V CMOS logic families.
- What is the full-scale output current of the AD9760ARU?
The full-scale output current is 20 mA, adjustable over a 2 mA to 20 mA range.
- What is the output impedance of the AD9760ARU?
The output impedance is greater than 100 kΩ.
- What are the package options for the AD9760ARU?
The AD9760ARU is available in a 28-lead TSSOP package.
- What are the typical applications of the AD9760ARU?
Typical applications include communication systems, direct digital synthesis (DDS), and instrumentation.
- How does the AD9760ARU reduce power consumption?
The AD9760ARU reduces power consumption through a power-down mode and adjustable full-scale current, allowing operation at reduced power levels.
- What is the output settling time of the AD9760ARU?
The output settling time (to 0.1%) is 35 ns.
- Is the AD9760ARU suitable for differential output configurations?
Yes, the AD9760ARU provides differential current outputs, ensuring enhanced dynamic performance in differential output configurations.
