Overview
The AD9884AKS-100, produced by Analog Devices Inc., is a comprehensive 8-bit analog interface designed for capturing RGB graphics signals from personal computers and workstations. This monolithic device operates at conversion rates of up to 140 MSPS, making it suitable for high-resolution display applications such as LCD monitors, projectors, and plasma display panels. The AD9884A integrates various key components, including an internal 1.25 V reference, a PLL to generate a pixel clock from HSYNC, and programmable gain, offset, and clamp circuits, thereby minimizing system cost and power dissipation.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 8 | 8 | 8 | Bits |
| Analog Input Range | 0.5 | 1.0 | V | |
| Analog Bandwidth | 500 | MHz | ||
| Conversion Rate | 100/140 | MSPS | ||
| Supply Voltage (VD, VDD, PVD) | 3.0 | 3.3 | 3.6 | V |
| Supply Current (VD, VDD, PVD) | 125, 33, 15 | 135, 47, 15 | mA | |
| Total Power Dissipation | 570 | 675 | mW | |
| Power-Down Supply Current | 2.0 | 25 | mA | |
| Operating Temperature Range | 0 | 70 | °C |
Key Features
- Internal 1.25 V reference and PLL to generate pixel clock from HSYNC.
- Programmable gain, offset, and clamp circuits.
- Supports up to four devices connected to a 2-wire serial interface with unique addresses.
- Three-state CMOS outputs with supply voltage range of 2.5 V to 3.3 V.
- Low power consumption with typical power dissipation of 570 mW.
- Power-down mode for reduced power consumption.
- Alternate pixel sampling for higher-resolution applications.
Applications
- RGB graphics processing.
- LCD monitors and projectors.
- Plasma display panels.
Q & A
- What is the maximum conversion rate of the AD9884AKS-100?
The AD9884AKS-100 has a maximum conversion rate of 140 MSPS. - What is the analog input range of the AD9884AKS-100?
The analog input range is from 0.5 V to 1.0 V. - What is the typical power dissipation of the AD9884AKS-100?
The typical power dissipation is 570 mW. - Can multiple AD9884A devices be connected to the same serial interface?
Yes, up to four devices can be connected to the 2-wire serial interface, each with a unique address. - What is the operating temperature range of the AD9884AKS-100?
The operating temperature range is from 0°C to +70°C. - Does the AD9884AKS-100 support power-down mode?
Yes, it supports a power-down mode to reduce power consumption. - What type of outputs does the AD9884AKS-100 have?
The device has three-state CMOS outputs. - What is the supply voltage range for the CMOS outputs?
The supply voltage range for the CMOS outputs is from 2.5 V to 3.3 V. - What are some of the key applications of the AD9884AKS-100?
Key applications include RGB graphics processing, LCD monitors, projectors, and plasma display panels. - Does the AD9884AKS-100 have an internal reference voltage?
Yes, it includes an internal 1.25 V reference voltage.
