Overview
The AD9765ASTZRL, produced by Analog Devices Inc., is a 12-bit, high-speed, dual-port, 2-channel CMOS Digital-to-Analog Converter (DAC). This component is part of the AD9763/AD9765/AD9767 family, which is optimized for processing I and Q data in communications applications. It integrates two high-quality TxDAC+ cores, a voltage reference, and digital interface circuitry into a 48-lead LQFP package.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Update Rate | Up to 125 MSPS |
| Supply Voltage | 3.3 V to 5 V |
| Power Consumption | 380 mW @ 5 V |
| Output Settling Time | 35 ns to 0.1%1 |
| Output Propagation Delay | 1 ns |
| Full-Scale Current | Nominal 20 mA, adjustable |
| Package Type | 48-Lead LQFP (7mm x 7mm) |
Key Features
- Dual-port or interleaved data mode
- Separate write inputs and clocks for each DAC port
- On-chip 1.2 V voltage reference
- Excellent gain and offset matching: 0.1% full-scale current matching
- Segmented current source architecture with proprietary switching technique to reduce glitch energy and maximize dynamic accuracy
- Differential current outputs supporting single-ended or differential applications
- Power-down mode: 50 mW @ 5 V
Applications
- Communications base stations
- Digital synthesis
- Quadrature modulation
- 3D ultrasound
Q & A
- What is the resolution of the AD9765ASTZRL?
The AD9765ASTZRL has a resolution of 12 bits. - What is the maximum update rate of the AD9765ASTZRL?
The maximum update rate is up to 125 MSPS. - What is the supply voltage range for the AD9765ASTZRL?
The supply voltage range is from 3.3 V to 5 V. - How much power does the AD9765ASTZRL consume?
The power consumption is 380 mW at 5 V. - What is the output settling time of the AD9765ASTZRL?
The output settling time is 35 ns to 0.1%. - Can the full-scale current of the AD9765ASTZRL be adjusted?
Yes, the full-scale current can be adjusted using external resistors. - What type of package does the AD9765ASTZRL come in?
The AD9765ASTZRL comes in a 48-Lead LQFP package (7mm x 7mm). - What are the key applications of the AD9765ASTZRL?
The key applications include communications base stations, digital synthesis, quadrature modulation, and 3D ultrasound. - Does the AD9765ASTZRL have a power-down mode?
Yes, it has a power-down mode that consumes 50 mW at 5 V. - How does the AD9765ASTZRL handle I and Q data?
The AD9765ASTZRL is optimized for processing I and Q data in communications applications and can operate in dual-port or interleaved data mode.
