Overview
The AD9884AKS-140, produced by Analog Devices Inc., is a high-performance analog interface IC designed for capturing RGB graphics signals from personal computers and workstations. This 8-bit monolithic device is optimized for high-speed applications, featuring a maximum encode rate of 140 MSPS and a full-power analog bandwidth of 500 MHz. It supports display resolutions up to 1280 × 1024 (SXGA) at 75 Hz, making it suitable for demanding display applications. The AD9884AKS-140 is fabricated in an advanced CMOS process and is available in a 128-lead MQFP surface mount plastic package, operating over a temperature range of 0°C to +70°C.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 8 | 8 | 8 | Bits |
| Differential Nonlinearity (25°C) | ±0.5 | ±1.0 | ±1.15/–1.0 | LSB |
| Integral Nonlinearity (25°C) | ±0.5 | ±1.25 | ±1.75 | LSB |
| Analog Input Voltage Range | - | - | - | V |
| PLL Clock Rate | 20 | - | 140 | MHz |
| PLL Jitter (25°C) | 400 | 475 | 700 | ps p-p |
| Sampling Phase Tempco | 15 | - | 15 | ps/°C |
| VD Supply Voltage | 3.0 | 3.3 | 3.6 | V |
| VDD Supply Voltage | 2.2 | 3.3 | 3.6 | V |
| PVD Supply Voltage | 3.0 | 3.3 | 3.6 | V |
| ID Supply Current (VD, 25°C) | 125 | 135 | - | mA |
| IDD Supply Current (VDD, 25°C) | 33 | 47 | - | mA |
| IPVD Supply Current (PVD, 25°C) | 15 | 15 | - | mA |
| Total Power Dissipation | 570 | - | 775 | mW |
| Analog Bandwidth (25°C) | 500 | - | - | MHz |
| Transient Response (25°C) | 2 | - | - | ns |
| Overvoltage Recovery Time (25°C) | 1.5 | - | - | ns |
| Signal-to-Noise Ratio (SNR, 25°C) | 43.5 | - | 46.5 | dB |
Key Features
- High-Speed Operation: The AD9884AKS-140 supports an encode rate of up to 140 MSPS, making it suitable for high-resolution display applications.
- Advanced CMOS Process: Fabricated in an advanced CMOS process, ensuring high performance and low power consumption.
- Full-Power Analog Bandwidth: Offers a full-power analog bandwidth of 500 MHz, enabling accurate acquisition and digitization of each pixel.
- Programmable via 2-Wire Serial Port: Allows for easy configuration and control through a 2-wire serial interface.
- Low Power Consumption: Features low power supply currents and total power dissipation, making it energy-efficient.
- Compact Packaging: Available in a 128-lead MQFP surface mount plastic package, ideal for space-constrained designs.
Applications
The AD9884AKS-140 is designed for various high-performance display applications, including:
- Personal Computers and Workstations: Capturing RGB graphics signals for high-resolution displays.
- Flat Panel Displays: Supporting display resolutions up to 1280 × 1024 (SXGA) at 75 Hz.
- Medical Imaging and Diagnostic Equipment: Where high-speed and high-resolution image capture are critical.
- Industrial and Automotive Displays: For applications requiring robust and high-performance display interfaces.
Q & A
- What is the maximum encode rate of the AD9884AKS-140?
The maximum encode rate of the AD9884AKS-140 is 140 MSPS.
- What is the full-power analog bandwidth of the AD9884AKS-140?
The full-power analog bandwidth is 500 MHz.
- What is the resolution of the AD9884AKS-140?
The resolution is 8 bits.
- What is the operating temperature range of the AD9884AKS-140?
The operating temperature range is from 0°C to +70°C.
- What type of package does the AD9884AKS-140 come in?
The AD9884AKS-140 is available in a 128-lead MQFP surface mount plastic package.
- How is the AD9884AKS-140 programmed?
The AD9884AKS-140 can be programmed via a 2-wire serial port.
- What are the typical supply voltages for the AD9884AKS-140?
The typical supply voltages are 3.3 V for VD, VDD, and PVD.
- What is the signal-to-noise ratio (SNR) of the AD9884AKS-140?
The SNR is between 43.5 dB and 46.5 dB without harmonics.
- What are some common applications of the AD9884AKS-140?
Common applications include personal computers, workstations, flat panel displays, medical imaging, and industrial displays.
- How much power does the AD9884AKS-140 consume in power-down mode?
In power-down mode, the supply current is approximately 2.0 mA, and the power dissipation is around 6.6 mW.
