Overview
The AD9761ARSRL, produced by Analog Devices Inc., is a complete dual-channel, high-speed, 10-bit CMOS Digital-to-Analog Converter (DAC). This component is specifically designed for use in wide bandwidth communication applications, such as spread spectrum systems, where digital I and Q information is processed during transmit operations. The AD9761 integrates two 10-bit, 40 MSPS DACs, dual 2x interpolation filters, a voltage reference, and digital input interface circuitry. It operates on a single supply voltage ranging from 3 V to 5.5 V and consumes 200 mW of power, making it a low-power solution for high-performance applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3 V | 5.5 V | V | |
| Power Consumption | 200 mW | mW | ||
| Resolution | 10 bits | |||
| Maximum Output Update Rate | 40 MSPS | MSPS | ||
| Output Settling Time (to 0.025%) | 35 ns | ns | ||
| Integral Nonlinearity (INL) | 2.75 LSB | LSB | ||
| Full-Scale Current | 10 mA | mA | ||
| Package | 28-Lead SSOP |
Key Features
- Dual 10-bit, 40 MSPS DACs optimized for low distortion performance, suitable for transmitting I and Q information.
- Dual 2x digital interpolation filters with 62.5 dB stop-band rejection, reducing the need for additional reconstruction filter requirements.
- Low power consumption: operates on a single supply from 3 V to 5.5 V, with a power consumption of 200 mW.
- Internal 1.20 V temperature-compensated bandgap voltage reference.
- Segmented current source architecture with proprietary switching technique to minimize glitch energy and maximize dynamic accuracy.
- Differential current output supporting single-ended or differential applications.
- Separate power supply inputs for analog and digital sections, allowing independent operation.
Applications
The AD9761ARSRL is primarily used in wide bandwidth communication applications, including:
- Spread spectrum systems.
- Wireless communication systems.
- Baseband and IF transmitter applications.
- Any system requiring high-speed, low-distortion DACs for I and Q signal processing.
Q & A
- What is the resolution of the AD9761ARSRL DAC?
The AD9761ARSRL has a resolution of 10 bits. - What is the maximum output update rate of the AD9761ARSRL?
The maximum output update rate is 40 MSPS. - What is the power consumption of the AD9761ARSRL?
The power consumption is 200 mW. - What type of interpolation filters does the AD9761ARSRL include?
The AD9761ARSRL includes dual 2x digital interpolation filters. - What is the full-scale current of each DAC in the AD9761ARSRL?
Each DAC provides a nominal full-scale current of 10 mA. - Does the AD9761ARSRL have an internal voltage reference?
Yes, it includes an internal 1.20 V temperature-compensated bandgap voltage reference. - What is the package type of the AD9761ARSRL?
The package type is 28-Lead SSOP. - What is the supply voltage range for the AD9761ARSRL?
The supply voltage range is from 3 V to 5.5 V. - Can the analog and digital sections of the AD9761ARSRL operate independently?
Yes, the analog and digital sections have separate power supply inputs, allowing them to operate independently. - What is the settling time of the AD9761ARSRL DACs?
The output settling time is 35 ns to 0.025%.
