Overview
The AD7899ARS-3 is a high-performance, 14-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD7899 series, known for its fast conversion rates and low power consumption. The AD7899ARS-3 operates from a single 5 V supply and is designed for applications requiring high-speed data acquisition with minimal power usage.
Key Specifications
| Parameter | Value | Unit | Test Conditions/Comments |
|---|---|---|---|
| Resolution | 14-bit | ||
| Throughput Rate | 400 kSPS | ||
| Conversion Time | 2.2 µs | ||
| Track/Hold Acquisition Time | 0.3 µs | ||
| Input Voltage Range | ±2.5 V | For AD7899-3 version | |
| Power Supply | 5 V | Single supply operation | |
| Power Consumption | 80 mW (typ) | Normal operation | |
| Power-Down Mode | 20 µW (typ) | Via STBY pin | |
| Package Type | 28-lead SSOP |
Key Features
- Fast Conversion Rate: The AD7899ARS-3 features a fast conversion time of 2.2 µs, allowing for throughput rates of up to 400 kSPS.
- Low Power Consumption: It operates from a single 5 V supply and consumes only 80 mW typically, making it ideal for low-power and portable applications.
- High-Speed Parallel Interface: The component offers a high-speed parallel interface that can operate in both 3 V and 5 V modes, facilitating easy connection to various microprocessors and digital signal processors.
- Multiple Input Ranges: The AD7899 series, including the AD7899ARS-3, offers multiple analog input ranges such as ±10 V, ±5 V, 0 V to 2.5 V, and 0 V to 5 V.
- Overvoltage Protection: The component includes overvoltage protection on analog inputs to ensure robust operation.
- Power-Down Mode: It features a power-down mode via the STBY pin, reducing power consumption to 20 µW typically.
Applications
- Industrial Automation: The AD7899ARS-3 is suitable for industrial automation systems that require high-speed data acquisition and low power consumption.
- Medical Devices: Its high accuracy and low noise make it a good fit for medical devices such as patient monitoring systems and diagnostic equipment.
- Aerospace and Defense: The component's robustness and reliability make it suitable for aerospace and defense applications where high performance is critical.
- Portable Equipment: The low power consumption of the AD7899ARS-3 makes it ideal for battery-powered portable equipment.
Q & A
- What is the resolution of the AD7899ARS-3?
The AD7899ARS-3 has a resolution of 14 bits.
- What is the maximum throughput rate of the AD7899ARS-3?
The maximum throughput rate is 400 kSPS.
- What is the typical conversion time of the AD7899ARS-3?
The typical conversion time is 2.2 µs.
- What are the input voltage ranges available for the AD7899 series?
The input voltage ranges include ±10 V, ±5 V, 0 V to 2.5 V, and 0 V to 5 V.
- Does the AD7899ARS-3 support power-down mode?
- What type of interface does the AD7899ARS-3 offer?
The component offers a high-speed parallel interface that can operate in both 3 V and 5 V modes.
- What is the typical power consumption of the AD7899ARS-3?
The typical power consumption is 80 mW.
- What kind of protection does the AD7899ARS-3 have on its analog inputs?
The component has overvoltage protection on its analog inputs.
- In what package type is the AD7899ARS-3 available?
The AD7899ARS-3 is available in a 28-lead SSOP package.
- What are some typical applications of the AD7899ARS-3?
Typical applications include industrial automation, medical devices, aerospace and defense, and portable equipment.
