Overview
The AD876AR is a 10-bit, 20 MSPS (Mega Samples Per Second) analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This CMOS ADC features a multistage pipelined architecture with output error correction logic, ensuring accurate performance and no missing codes over the full operating temperature range. It is designed for low power consumption, operating at 160 mW, and includes a power-down mode that reduces power below 50 mW. The AD876AR is suitable for various high-speed applications, including video, multimedia, imaging, and communications.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Resolution | - | - | - | 10 bits | - |
| Sampling Rate | - | - | - | 20 MSPS | - |
| Power Consumption | - | - | - | 160 mW | - |
| Operating Temperature Range | - | -40°C | - | +85°C | - |
| Logic Input High Level Voltage (3.0V) | VIH | 2.4 V | - | 5.0 V | - |
| Logic Input Low Level Voltage (3.0V) | VIL | 0.6 V | - | 1.0 V | - |
| Logic Output High Level Voltage (IOH = 50 µA, 3.0V) | VOH | 2.4 V | - | 3.8 V | - |
| Logic Output Low Level Voltage (IOL = 50 µA, 3.0V) | VOL | 0.7 V | - | 1.05 V | - |
| Package Type | - | - | - | 28-Lead SOIC, 48-Lead TQFP | - |
Key Features
- Low Power Consumption: The AD876AR operates at 160 mW and has a power-down mode that reduces power below 50 mW, making it ideal for battery-operated applications.
- High Speed and Resolution: With a sampling rate of 20 MSPS and 10-bit resolution, it is well-suited for high-speed applications.
- Single-Supply Operation: Compatible with both +5 V and +3.3 V logic, enhancing its versatility.
- Three-State Output Control: Digital output pins can be placed in a high impedance state.
- Compact Packaging: Available in 28-lead SOIC and 48-lead TQFP packages, ideal for tight design spaces.
- Pin Compatible Upgrade Path: Allows for easy migration from 8-bit to 10-bit resolution.
Applications
- Video and Multimedia: Suitable for high-speed video and multimedia applications.
- Imaging: Ideal for charge coupled device (CCD) input systems such as color scanners, digital copiers, electronic still cameras, and camcorders.
- High-Speed Data Acquisition: Used in various data acquisition systems requiring high speed and accuracy.
- Communications: Applied in communication systems where low power and high speed are critical.
Q & A
- What is the resolution of the AD876AR ADC?
The AD876AR has a resolution of 10 bits. - What is the maximum sampling rate of the AD876AR?
The maximum sampling rate is 20 MSPS. - How much power does the AD876AR consume?
The AD876AR consumes 160 mW of power and can be reduced below 50 mW in power-down mode. - What are the operating temperature ranges for the AD876AR?
The operating temperature range is from -40°C to +85°C. - What logic levels does the AD876AR support?
The AD876AR supports both +5 V and +3.3 V logic levels. - What types of packages are available for the AD876AR?
The AD876AR is available in 28-lead SOIC and 48-lead TQFP packages. - Does the AD876AR have a power-down mode?
Yes, the AD876AR has a power-down mode that reduces power consumption below 50 mW. - What is the significance of the three-state output control in the AD876AR?
The three-state output control allows digital output pins to be placed in a high impedance state. - Can the AD876AR be used in battery-operated devices?
Yes, the AD876AR is suitable for battery-operated devices due to its low power consumption. - What are some common applications of the AD876AR?
The AD876AR is commonly used in video, multimedia, imaging, high-speed data acquisition, and communication systems.
