Description

The AD9763/AD9765/AD9767 are high-speed, 2-channel, dual-port digital-to-analog converters (DACs). They have 10-/12-/14-bit capabilities and are ideal for a range of applications including digital synthesis, communications, and base stations. The AD9765ASTZRL model is an exceptional choice due to its excellent ac and dc performance and support for rapid update rates. These DACs are integrated with two TxDAC+ cores, voltage reference, and digital interface circuitry into a compact 48-lead LQFP.

Specifications and features

• 10-/12-/14-bit dual transmit digital-to-analog converters (DACs)
• 125 MSPS update rate
• Excellent SFDR to Nyquist @ 5 MHz output: 75 dBc
• Excellent gain and offset matching: 0.1%
• Fully independent or single-resistor gain control
• Dual-port or interleaved data
• On-chip 1.2 V reference
• 5 V or 3.3 V operation
• Power dissipation: 380 mW @ 5 V
• Power-down mode: 50 mW @ 5 V
• 48-lead LQFP

Application Scenarios

The AD9765ASTZRL is a highly versatile DAC that is perfect for a range of applications including:

• Communications
• Base stations
• Digital synthesis
• Quadrature modulation
• 3D ultrasound

Comparison

• Excellent ac and dc performance
• Supports high update rates up to 125 MSPS
• Integrates two TxDAC+ cores, voltage reference, and digital interface circuitry
• Compact 48-lead LQFP form factor
• Excellent SFDR to Nyquist @ 5 MHz output
• Excellent gain and offset matching
• Supports fully independent or single-resistor gain control
• Dual-port or interleaved data
• On-chip 1.2 V reference
• Support for both 5 V or 3.3 V operation

No significant disadvantages have been reported for the AD9765ASTZRL model.