Overview
The AD7876CR, produced by Analog Devices Inc., is a fast, complete 12-bit analog-to-digital converter (ADC). This component integrates all necessary functions for analog-to-digital conversion, including a track-and-hold amplifier, an 8 μs successive approximation ADC, a 3 V buried Zener reference, and versatile interface logic. The AD7876CR is designed to be compatible with modern microprocessors and digital signal processors, featuring a self-contained internal clock and fast data access times.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Input Range | ±10 V |
| Conversion Time | 8 μs |
| Reference Voltage | 3 V ± 10 mV |
| Data Access Time | 57 ns |
| Power Consumption | -60 mW typical |
| Operating Temperature | -40°C to +85°C |
| Package Type | 24-Lead SOIC_W |
Key Features
- Complete 12-bit ADC on a single chip, including track-and-hold amplifier, successive approximation ADC, and internal reference.
- Internal 3 V buried Zener reference, factory trimmed to ±10 mV.
- Fast microprocessor interface with data access times of 57 ns.
- Self-contained internal clock.
- Dynamically specified for ac parameters such as signal-to-noise ratio, harmonic distortion, and intermodulation distortion.
- Reference output capable of providing up to 500 μA to an external load.
Applications
The AD7876CR is suitable for a variety of applications requiring high-speed and accurate analog-to-digital conversion. These include:
- Digital Signal Processing (DSP) systems.
- Industrial control systems.
- Medical devices.
- Aerospace and defense systems.
- High-speed data acquisition systems.
Q & A
- What is the resolution of the AD7876CR? The AD7876CR has a 12-bit resolution.
- What is the input voltage range of the AD7876CR? The input voltage range is ±10 V.
- How long does the AD7876CR take to convert an analog signal to digital? The conversion time is 8 μs.
- What is the reference voltage of the AD7876CR? The reference voltage is 3 V ± 10 mV.
- What is the data access time of the AD7876CR? The data access time is 57 ns.
- How much power does the AD7876CR typically consume? The typical power consumption is -60 mW.
- What is the operating temperature range of the AD7876CR? The operating temperature range is -40°C to +85°C.
- In what package type is the AD7876CR available? The AD7876CR is available in a 24-Lead SOIC_W package.
- Is the AD7876CR suitable for high-speed applications? Yes, the AD7876CR is designed for high-speed applications with fast data access times and a self-contained internal clock.
- Can the reference output of the AD7876CR be used externally? Yes, the reference output can be used externally, but it should be decoupled with specific components to remove voltage spikes.
