Overview
The AD7893BN-2 is a 12-bit, single supply, successive-approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD7893 series and is known for its high speed, low power consumption, and compact packaging. The AD7893BN-2 integrates a 6 µs ADC, a track/hold amplifier, control logic, and a high-speed serial interface, all within an 8-pin package, making it ideal for space-constrained and power-sensitive applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Conversion Time | 6 µs |
| Throughput Rate | Up to 117 kHz (133 kHz with slightly degraded performance) |
| Analog Input Range | ±10 V (AD7893-10), ±2.5 V (AD7893-3), 0 V to +5 V (AD7893-5), 0 V to +2.5 V (AD7893-2) |
| Supply Voltage | Single +5 V |
| Power Consumption | Typical 25 mW |
| Operating Temperature | –40°C to +85°C |
| Package Type | 8-pin PDIP, 8-pin SOIC |
| Input Resistance | Typically 33 kΩ (for AD7893-10) |
Key Features
- Fast Conversion Time: The AD7893BN-2 features a fast 6 µs conversion time, making it suitable for high-speed applications.
- Low Power Consumption: Operating from a single +5 V supply, it consumes only 25 mW, ideal for battery-powered or portable devices.
- High-Speed Serial Interface: The component includes a high-speed serial interface, facilitating efficient data transfer.
- Compact Packaging: Available in 8-pin PDIP and SOIC packages, it offers significant space savings.
- Dynamic Performance: Specified for dynamic performance parameters including harmonic distortion and signal-to-noise ratio.
- Signal Scaling: The AD7893 series provides signal scaling, allowing it to handle various input voltage ranges.
Applications
- Portable and Battery-Powered Devices: Due to its low power consumption, it is ideal for use in portable and battery-powered applications.
- Industrial Automation: Suitable for industrial automation systems requiring fast and accurate analog-to-digital conversion.
- Medical Devices: Can be used in medical devices where high accuracy and low power consumption are critical.
- Aerospace and Defense: The component's robust performance and compact packaging make it suitable for aerospace and defense applications.
- Automotive Systems: Used in automotive systems that require reliable and efficient analog-to-digital conversion.
Q & A
- What is the resolution of the AD7893BN-2?
The AD7893BN-2 has a 12-bit resolution.
- What is the conversion time of the AD7893BN-2?
The conversion time is 6 µs.
- What is the maximum throughput rate of the AD7893BN-2?
The maximum throughput rate is up to 117 kHz, with slightly degraded performance up to 133 kHz.
- What are the available analog input ranges for the AD7893 series?
The available ranges are ±10 V, ±2.5 V, 0 V to +5 V, and 0 V to +2.5 V.
- What is the supply voltage for the AD7893BN-2?
The supply voltage is a single +5 V.
- How much power does the AD7893BN-2 consume?
The typical power consumption is 25 mW.
- What are the operating temperature ranges for the AD7893BN-2?
The operating temperature range is –40°C to +85°C.
- In what packages is the AD7893BN-2 available?
The component is available in 8-pin PDIP and 8-pin SOIC packages.
- What is the input resistance of the AD7893-10?
The input resistance is typically 33 kΩ for the AD7893-10.
- What are some key applications of the AD7893BN-2?
Key applications include portable and battery-powered devices, industrial automation, medical devices, aerospace and defense, and automotive systems.
