Overview
The AD9763ASTZ is a 10-bit, high-speed, dual-port, 2-channel digital-to-analog converter (DAC) produced by Analog Devices Inc. This component integrates two high-quality TxDAC+ cores, a voltage reference, and digital interface circuitry into a compact 48-lead LQFP package. It is designed to offer exceptional AC and DC performance, supporting update rates of up to 125 MSPS. The AD9763ASTZ is optimized for processing I and Q data in communications applications, making it a versatile choice for various high-speed data transmission needs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 10-bit | |
| Update Rate | Up to 125 MSPS | |
| Number of Channels | 2 | |
| Package Type | 48-lead LQFP | |
| Supply Voltage | 3.3 V to 5 V | |
| Power Consumption | 380 mW @ 5 V | |
| Full-Scale Current | 20 mA | |
| Gain Matching | Typically 0.1% of full scale | |
| Offset Error | Better than 0.02% | |
| Voltage Reference | On-chip 1.20 V temperature-compensated band gap voltage reference |
Key Features
- Dual-port or interleaved data input mode
- Separate write inputs and clocks for each DAC port
- Segmented current source architecture with proprietary switching technique to reduce glitch energy and maximize dynamic accuracy
- Differential current output supporting single-ended or differential applications
- Flexible gain control using external resistors
- Low power operation with sleep mode: 50 mW @ 5 V
- On-chip 1.20 V temperature-compensated band gap voltage reference
Applications
- Communications base stations
- Digital synthesis
- Quadrature modulation
- 3D ultrasound
Q & A
- What is the resolution of the AD9763ASTZ?
The AD9763ASTZ has a resolution of 10 bits.
- What is the maximum update rate of the AD9763ASTZ?
The maximum update rate is up to 125 MSPS.
- How many channels does the AD9763ASTZ have?
The AD9763ASTZ has 2 channels.
- What is the package type of the AD9763ASTZ?
The package type is a 48-lead LQFP.
- What is the supply voltage range for the AD9763ASTZ?
The supply voltage range is from 3.3 V to 5 V.
- How much power does the AD9763ASTZ consume at 5 V?
The power consumption is 380 mW at 5 V.
- What is the full-scale current of the AD9763ASTZ?
The full-scale current is 20 mA.
- What is the gain matching between the two DACs?
The gain matching is typically 0.1% of full scale.
- Does the AD9763ASTZ have an on-chip voltage reference?
Yes, it includes an on-chip 1.20 V temperature-compensated band gap voltage reference.
- What are some common applications of the AD9763ASTZ?
Common applications include communications base stations, digital synthesis, quadrature modulation, and 3D ultrasound.
