Overview
The AD7876BN is a 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD7870/AD7875/AD7876 family, known for their fast and complete conversion capabilities. The AD7876BN features a track-and-hold amplifier, an 8 μs successive approximation ADC, and a 3 V buried Zener reference. It operates from ±5 V power supplies and supports input signal ranges of ±10 V, making it versatile for various analog-to-digital conversion applications.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD7876BN |
| Resolution | 12 bits |
| Package | 24-Lead PDIP (0.300, 7.62mm) |
| Pin Count | 24 |
| Voltage - Supply, Analog | ±5 V |
| Input Signal Range | ±10 V |
| Sampling Rate | 100 kHz |
| Conversion Time | 8 μs |
| Data Interface | SPI, Parallel |
| Output Format | SERIAL, PARALLEL, 8 BITS, PARALLEL, WORD |
| Operating Temperature Range | −40°C to +85°C |
Key Features
- Track-and-Hold Amplifier: Ensures accurate capture and holding of the input signal during the conversion process.
- Successive Approximation ADC: Provides fast and accurate analog-to-digital conversion with an 8 μs conversion time.
- Internal Clock: Self-contained internal clock that can be overridden by an external clock if required.
- Versatile Interface Logic: Supports multiple data output formats including serial, parallel 12-bit word, and two 8-bit bytes.
- Low Power Consumption: Typical power consumption of −60 mW.
- Wide Input Signal Range: Accepts input signal ranges of ±10 V.
Applications
- Industrial Automation: Suitable for applications requiring precise analog-to-digital conversion in industrial control systems.
- Medical Devices: Used in medical equipment where accurate signal conversion is critical.
- Aerospace and Defense: Employed in various military and aerospace applications due to its reliability and performance.
- Automotive Systems: Applied in automotive systems for sensor data conversion and processing.
Q & A
- What is the resolution of the AD7876BN ADC?
The AD7876BN has a resolution of 12 bits.
- What is the input signal range for the AD7876BN?
The AD7876BN accepts input signal ranges of ±10 V.
- What are the power supply requirements for the AD7876BN?
The AD7876BN operates from ±5 V power supplies.
- What is the conversion time of the AD7876BN?
The conversion time of the AD7876BN is 8 μs.
- Does the AD7876BN have an internal clock?
Yes, the AD7876BN has a self-contained internal clock that can be overridden by an external clock if required.
- What data output formats does the AD7876BN support?
The AD7876BN supports serial, parallel 12-bit word, and two 8-bit bytes output formats.
- What is the operating temperature range of the AD7876BN?
The operating temperature range of the AD7876BN is −40°C to +85°C.
- Is the AD7876BN suitable for low power applications?
Yes, the AD7876BN has a typical power consumption of −60 mW, making it suitable for low power applications.
- What type of amplifier does the AD7876BN use?
The AD7876BN uses a track-and-hold amplifier.
- Can the AD7876BN be used in industrial automation?
Yes, the AD7876BN is suitable for applications in industrial automation due to its precise analog-to-digital conversion capabilities.
