Overview
The AD9753AST, manufactured by Analog Devices Inc., is a high-performance, 12-bit, single-channel CMOS digital-to-analog converter (DAC). This device is part of the TxDAC+® family and is designed for ultrahigh speed applications. It integrates a high-quality 12-bit DAC core, a voltage reference, and digital interface circuitry into a compact 48-lead LQFP package. The AD9753AST offers exceptional AC and DC performance, supporting update rates up to 300 MSPS, making it ideal for demanding communication and signal processing applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | - | - | 12 Bits | - |
| Integral Linearity Error (INL) | -1.5 | ±0.5 | +1.5 | LSB |
| Differential Nonlinearity (DNL) | -1 | ±0.4 | +1 | LSB |
| Maximum Output Update Rate (fDAC) | - | - | 300 MSPS | - |
| Output Settling Time (tST) (to 0.1%) | - | - | 11 ns | - |
| Output Propagation Delay (tPD) | - | - | 1 ns | - |
| Glitch Impulse | - | - | 5 pV-s | - |
| Output Rise Time (10% to 90%) | - | - | 2.5 ns | - |
| Output Fall Time (10% to 90%) | - | - | 2.5 ns | - |
| Supply Voltage | 3.0 V | - | 3.6 V | - |
| Power Dissipation | - | - | 155 mW @ 3.3 V | - |
Key Features
- Ultrahigh Speed Conversion Rate: Supports update rates up to 300 MSPS.
- Dual 12-Bit Latched, Multiplexed Input Ports: Allows for flexible digital interface and high-speed data conversion through either single or dual port input.
- Low Power Operation: Operates on a single 3.0 V to 3.6 V supply, consuming 155 mW of power.
- On-Chip Voltage Reference: Includes a 1.20 V temperature-compensated band gap voltage reference.
- High AC and DC Performance: Offers exceptional linearity and dynamic performance, including low glitch impulse and fast output settling time.
- Compact Package: Available in a 48-lead LQFP package.
Applications
- Communications: Suitable for LMDS, LMCS, MMDS base stations.
- Digital Synthesis: Used in QAM and OFDM applications.
- High-Speed Signal Processing: Ideal for applications requiring high-speed data conversion and low power consumption.
Q & A
- What is the resolution of the AD9753AST DAC?
The AD9753AST has a resolution of 12 bits.
- What is the maximum output update rate of the AD9753AST?
The maximum output update rate is 300 MSPS.
- What is the power consumption of the AD9753AST at 3.3 V supply voltage?
The power consumption is 155 mW at 3.3 V supply voltage.
- Does the AD9753AST have an on-chip voltage reference?
Yes, it includes a 1.20 V temperature-compensated band gap voltage reference.
- What is the package type of the AD9753AST?
The AD9753AST is available in a 48-lead LQFP package.
- What are the typical applications of the AD9753AST?
It is used in communications, digital synthesis, and high-speed signal processing applications.
- Can the AD9753AST be used with an external voltage reference?
Yes, the internal reference can be overdriven by an external reference without affecting performance.
- What is the settling time of the AD9753AST?
The output settling time is 11 ns to 0.1%.
- Is the AD9753AST RoHS compliant?
Yes, the AD9753AST is RoHS compliant.
- What is the operating temperature range of the AD9753AST?
The specific operating temperature range is not detailed in the provided sources, but it is designed for standard industrial use.
