Overview
The AD876ARS is a 10-bit, 20 MSPS (Mega Samples Per Second) CMOS analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device features a multistage pipelined architecture with output error correction logic, ensuring accurate performance and guaranteeing no missing codes over the full operating temperature range. The AD876ARS operates on a single +5 V supply and includes an on-chip input sample-and-hold amplifier. It is designed for high-speed applications and is particularly suited for use in video, multimedia, imaging, high-speed data acquisition, and communications systems.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Resolution | - | - | - | 10 bits | |
| Sampling Rate | - | - | - | 20 MSPS | |
| Power Dissipation | - | - | - | 160 mW | |
| Supply Voltage | VDD | 4.75 | 5.0 | 5.25 | V |
| Operating Temperature Range | - | -40 | - | 85 | °C |
| High Level Input Voltage (3.0 V Logic) | VIH | 2.4 | - | 3.0 | V |
| Low Level Input Voltage (3.0 V Logic) | VIL | 0.6 | - | 1.0 | V |
| High Level Output Voltage (IOH = 50 µA, 3.0 V Logic) | VOH | 2.4 | - | 3.0 | V |
| Low Level Output Voltage (IOL = 50 µA, 3.0 V Logic) | VOL | 0.7 | - | 1.05 | V |
Key Features
- CMOS 10-bit 20 MSPS sampling ADC with on-chip input sample-and-hold amplifier
- Pin-compatible 8-bit option available
- Single +5 V supply operation with low power dissipation of 160 mW
- Differential nonlinearity guaranteed at 0.5 LSB with no missing codes
- Power down (standby) mode reducing power below 50 mW
- Three-state outputs with digital I/Os compatible with +5 V or +3.3 V logic
- Adjustable reference input and small size options (28-Lead SOIC, 28-Lead SSOP, or 48-Lead Thin Quad Flatpack)
Applications
The AD876ARS is ideally suited for a variety of high-speed applications, including:
- Video and multimedia systems
- Imaging systems such as color scanners and digital copiers
- High-speed data acquisition systems
- Communications systems
- Portable applications requiring high speed and low power consumption
Q & A
- What is the resolution of the AD876ARS ADC?
The AD876ARS has a resolution of 10 bits. - What is the maximum sampling rate of the AD876ARS?
The maximum sampling rate is 20 MSPS. - What is the typical power dissipation of the AD876ARS?
The typical power dissipation is 160 mW. - What is the operating temperature range of the AD876ARS?
The operating temperature range is from -40°C to +85°C. - Is the AD876ARS compatible with both +5 V and +3.3 V logic?
Yes, the digital I/Os of the AD876ARS are compatible with both +5 V and +3.3 V logic. - Does the AD876ARS have a power down mode?
Yes, the AD876ARS can be placed into a standby mode of operation, reducing the power below 50 mW. - What are the package options for the AD876ARS?
The AD876ARS is available in 28-Lead SOIC, 28-Lead SSOP, or 48-Lead Thin Quad Flatpack (TQFP) packages. - What type of output coding does the AD876ARS use?
The output format of the AD876ARS is straight binary coding. - Is the AD876ARS suitable for high-speed portable applications?
Yes, the AD876ARS is suitable for high-speed portable applications due to its low power and single-supply operation. - What are some common applications of the AD876ARS?
The AD876ARS is commonly used in video, multimedia, imaging, high-speed data acquisition, and communications systems.
