Overview
The AD7875BQ is a 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD7870/AD7875/AD7876 series, known for their comprehensive integration of all necessary functions for analog-to-digital conversion on a single chip. The AD7875BQ features a track-and-hold amplifier, an 8 μs successive approximation ADC, a 3 V buried Zener reference, and versatile interface logic. It is particularly suited for applications requiring fast and accurate analog-to-digital conversion, with compatibility with modern microprocessors and digital signal processors.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12-bit | |
| Input Range | 0 V to +5 V | |
| Input Resistance | Typically 25 kΩ | |
| Conversion Time | 8 μs | |
| Data Access Time | 57 ns | |
| Power Consumption | Typically -60 mW | |
| Operating Temperature Range | -40°C to +85°C | |
| Package Type | 24-Lead CERDIP | |
| Reference Voltage | 3 V buried Zener reference |
Key Features
- Complete 12-bit ADC on a single chip, including track-and-hold amplifier, successive approximation ADC, and internal reference.
- Fast microprocessor interface with data access times of 57 ns, compatible with modern 8-bit and 16-bit microprocessors and digital signal processors.
- Dynamic specifications fully tested for ac parameters, including signal-to-noise ratio, harmonic distortion, and intermodulation distortion.
- Self-contained internal clock, eliminating the need for external clock sources.
- Low power consumption, typically -60 mW.
Applications
The AD7875BQ is suitable for a variety of applications that require fast and accurate analog-to-digital conversion. These include:
- Digital signal processing systems.
- Industrial control systems.
- Medical devices requiring precise analog-to-digital conversion.
- Aerospace and defense applications where reliability and accuracy are critical.
- Automotive systems that need robust and efficient ADCs.
Q & A
- What is the resolution of the AD7875BQ?
The AD7875BQ has a resolution of 12 bits.
- What is the input voltage range of the AD7875BQ?
The input voltage range of the AD7875BQ is from 0 V to +5 V.
- What is the typical input resistance of the AD7875BQ?
The typical input resistance of the AD7875BQ is 25 kΩ.
- How long does the AD7875BQ take to convert an analog signal to digital?
The AD7875BQ takes 8 μs to convert an analog signal to digital.
- What is the data access time of the AD7875BQ?
The data access time of the AD7875BQ is 57 ns.
- What is the power consumption of the AD7875BQ?
The power consumption of the AD7875BQ is typically -60 mW.
- What is the operating temperature range of the AD7875BQ?
The operating temperature range of the AD7875BQ is from -40°C to +85°C.
- In what package type is the AD7875BQ available?
The AD7875BQ is available in a 24-Lead CERDIP package.
- Does the AD7875BQ have an internal clock?
Yes, the AD7875BQ has a self-contained internal clock.
- What are some common applications of the AD7875BQ?
The AD7875BQ is commonly used in digital signal processing systems, industrial control systems, medical devices, aerospace and defense applications, and automotive systems.
