Overview
The AD9750ARRL is a 10-bit resolution, wideband, high-performance digital-to-analog converter (DAC) from Analog Devices Inc. It is part of the TxDAC series, which is optimized for the transmit signal path of communication systems. This DAC offers exceptional AC and DC performance, supporting update rates up to 125 MSPS. The AD9750ARRL is manufactured using an advanced CMOS process and 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 | 10 | Bits | ||
| Update Rate | 125 | MSPS | ||
| Integral Linearity Error (INL) | -1.0 | ±0.1 | +1.0 | LSB |
| Differential Nonlinearity (DNL) | -0.5 | ±0.1 | +0.5 | LSB |
| Analog Output Offset Error | -0.02 | +0.02 | % of FSR | |
| Analog Output Gain Error (Without Internal Reference) | -2 | ±0.5 | +2 | % of FSR |
| Analog Output Gain Error (With Internal Reference) | -5 | ±1.5 | +5 | % of FSR |
| 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 |
| Power Dissipation @ 5 V | 190 | mW | ||
| Power-Down Mode @ 5 V | 20 | mW |
Key Features
- High-performance 10-bit resolution DAC with an update rate of up to 125 MSPS.
- Segmented current source architecture and proprietary switching technique for enhanced dynamic performance.
- Edge-triggered input latches and a 1.20 V temperature-compensated bandgap reference.
- Flexible single-supply operating range of 4.5 V to 5.5 V.
- Low power dissipation of 190 mW at 5 V, with a power-down mode reducing standby power to approximately 20 mW.
- Differential current outputs configurable for single-ended or differential operation.
- CMOS-compatible digital interface supporting +2.7 V and +5 V logic families.
- Available in 28-lead SOIC and TSSOP packages.
Applications
- Wideband communication systems.
- Direct IF basestations.
- Wireless local loop.
- Digital radio links.
- Direct digital synthesis (DDS).
- Instrumentation.
Q & A
- What is the resolution of the AD9750ARRL DAC?
The AD9750ARRL has a 10-bit resolution.
- What is the maximum update rate of the AD9750ARRL?
The maximum update rate is up to 125 MSPS.
- What is the power dissipation of the AD9750ARRL at 5 V?
The power dissipation is 190 mW at 5 V.
- What is the power consumption in power-down mode?
In power-down mode, the power consumption is approximately 20 mW at 5 V.
- What are the supported digital logic families for the AD9750ARRL?
The AD9750ARRL supports +2.7 V and +5 V CMOS logic families.
- What are the available package types for the AD9750ARRL?
The AD9750ARRL is available in 28-lead SOIC and TSSOP packages.
- What is the range of the full-scale output current?
The full-scale output current ranges from 2 mA to 20 mA.
- What is the reference voltage of the AD9750ARRL?
The reference voltage is between 1.14 V and 1.26 V.
- What are some typical applications of the AD9750ARRL?
Typical applications include wideband communication systems, direct IF basestations, wireless local loop, digital radio links, direct digital synthesis (DDS), and instrumentation.
- How does the AD9750ARRL reduce spurious components?
The AD9750ARRL uses a segmented current source architecture combined with a proprietary switching technique to reduce spurious components and enhance dynamic performance.
