Overview
The AD7899ARS-2 is a high-performance, 14-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This integrated circuit is designed for high-speed, low-power data acquisition applications. It features a successive approximation register (SAR) architecture, which enables fast conversion rates and low power consumption. The AD7899ARS-2 operates from a single 5V supply and is available in a 28-lead SSOP package, making it suitable for a variety of applications requiring precise and efficient data conversion.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Manufacturer Part Number | AD7899ARS-2 | ||
| Number of Bits | 14 | ||
| Sampling Rate (Per Second) | 400k | Samples per second | |
| Number of Inputs | 1 | Single-ended input | |
| Data Interface | Parallel | High-speed parallel interface | |
| Configuration | S/H-ADC | Sample-and-hold feature | |
| Architecture | SAR (Successive Approximation Register) | ||
| Reference Type | External, Internal | ||
| Voltage - Supply, Analog/Digital | 5V | Volt | Single supply voltage |
| Package / Case | 28-SSOP (0.209", 5.30mm Width) | ||
| Operating Temperature | -40°C ~ 85°C | Celsius | |
| Conversion Time | 2.2 µs | Microseconds | |
| Track/Hold Acquisition Time | 0.3 µs | Microseconds | |
| Throughput Rate | 400 kSPS | Samples per second | |
| Power Consumption | 80 mW (typical), 20 µW (power-down mode) | Milliwatts, Microwatts | |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | ||
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- High-Speed Conversion: The AD7899ARS-2 features a fast conversion time of 2.2 µs and a throughput rate of up to 400 kSPS, making it ideal for high-speed data acquisition applications.
- Low Power Consumption: It operates with a typical power consumption of 80 mW and a power-down mode of 20 µW, suitable for low-power and portable applications.
- Single Supply Voltage: The ADC operates from a single 5V supply, simplifying system design.
- High-Speed Parallel Interface: The interface is compatible with both 3V and 5V microprocessors, microcontrollers, and digital signal processors.
- Sample-and-Hold Feature: Includes a sample-and-hold circuit to ensure accurate conversion of the analog input signal.
- External and Internal Reference: Supports both external and internal reference types for flexibility in system design.
- Low Noise Performance: Offers reliable conversion accuracy with low noise performance.
- Overvoltage Protection: Features overvoltage protection on analog inputs to enhance reliability.
- Lead Free and RoHS Compliant: Ensures compliance with environmental regulations.
Applications
- Medical Imaging Systems: Suitable for medical imaging applications requiring high-speed and accurate data conversion.
- Data Acquisition Systems: Ideal for various data acquisition systems where fast and precise analog-to-digital conversion is necessary.
- Industrial Automation: Used in industrial automation for real-time data acquisition and processing.
- Portable and Battery-Powered Devices: Suitable for portable and battery-powered devices due to its low power consumption.
- Scientific Instruments: Applied in scientific instruments that require high-speed and accurate data conversion.
Q & A
- What is the resolution of the AD7899ARS-2 ADC?
The AD7899ARS-2 has a 14-bit resolution.
- What is the sampling rate of the AD7899ARS-2?
The sampling rate is up to 400 kSPS.
- What type of architecture does the AD7899ARS-2 use?
The AD7899ARS-2 uses a Successive Approximation Register (SAR) architecture.
- What is the supply voltage for the AD7899ARS-2?
The AD7899ARS-2 operates from a single 5V supply.
- What is the package type of the AD7899ARS-2?
The AD7899ARS-2 is available in a 28-lead SSOP package.
- What are the operating temperature ranges for the AD7899ARS-2?
The operating temperature range is from -40°C to 85°C.
- Does the AD7899ARS-2 support both external and internal references?
Yes, it supports both external and internal reference types.
- What is the typical power consumption of the AD7899ARS-2?
The typical power consumption is 80 mW, with a power-down mode of 20 µW.
- Is the AD7899ARS-2 lead-free and RoHS compliant?
Yes, it is lead-free and RoHS compliant.
- What types of applications is the AD7899ARS-2 suitable for?
The AD7899ARS-2 is suitable for medical imaging systems, data acquisition systems, industrial automation, portable and battery-powered devices, and scientific instruments.
