Overview
The AD7870LP-REEL, produced by Analog Devices Inc., is a fast, complete 12-bit analog-to-digital converter (ADC). This component integrates a track-and-hold amplifier, an 8 μs successive approximation ADC, a 3 V buried Zener reference, and versatile interface logic on a single chip. It is designed to operate with a self-contained internal clock, eliminating the need for external clock timing components, although an external clock can be used if required. The AD7870LP-REEL is part of the AD7870 series, which offers various input ranges and data output formats, making it highly versatile for different applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Resolution | 12-bit |
| Input Range | ±3 V |
| Conversion Time | 8 μs |
| Data Access Time | 57 ns |
| Power Supply | ±5 V |
| Power Consumption | −60 mW typical |
| Operating Temperature | 0°C to +70°C |
| Package Type | 28-Lead PLCC |
| Data Output Formats | Parallel (12-bit word), Two 8-bit bytes, Serial data |
Key Features
- Complete 12-bit ADC on a single chip, including track-and-hold amplifier, internal clock, and reference.
- Dynamic specifications for DSP users, including signal-to-noise ratio, harmonic distortion, and intermodulation distortion.
- Fast microprocessor interface with data access times of 57 ns, compatible with modern 8-bit and 16-bit microprocessors and digital signal processors.
- Versatile interface logic supporting parallel and serial data output formats.
- Self-contained internal clock with the option to use an external clock if required.
Applications
- Digital Signal Processing (DSP) systems requiring high accuracy and fast conversion times.
- Industrial control systems where precise analog-to-digital conversion is necessary.
- Medical devices that require accurate and reliable data conversion.
- Aerospace and defense applications where robust and reliable ADCs are critical.
- Automotive systems that need fast and accurate data conversion for various sensors.
Q & A
- What is the resolution of the AD7870LP-REEL?
The AD7870LP-REEL has a 12-bit resolution.
- What are the input signal ranges for the AD7870LP-REEL?
The AD7870LP-REEL accepts input signal ranges of ±3 V.
- How long does the AD7870LP-REEL take to convert an analog signal to digital?
The conversion time for the AD7870LP-REEL is 8 μs.
- What are the power supply requirements for the AD7870LP-REEL?
The AD7870LP-REEL operates from ±5 V power supplies.
- What is the typical power consumption of the AD7870LP-REEL?
The typical power consumption is −60 mW.
- What are the available data output formats for the AD7870LP-REEL?
The data output formats include parallel (12-bit word), two 8-bit bytes, and serial data.
- Is the AD7870LP-REEL compatible with modern microprocessors and DSPs?
- Does the AD7870LP-REEL have an internal clock?
- What is the operating temperature range for the AD7870LP-REEL?
The operating temperature range is 0°C to +70°C.
- In what package type is the AD7870LP-REEL available?
The AD7870LP-REEL is available in a 28-Lead PLCC package.
