Overview
The AD7893AR-2 is a 12-bit successive approximation (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is designed for high-speed and low-power applications, making it ideal for battery-powered or portable devices. The AD7893AR-2 operates from a single +5 V supply and is housed in an 8-pin SOIC package, offering significant space savings compared to alternative solutions.
Key Specifications
| Part Number | AD7893AR-2 |
|---|---|
| Manufacturer / Brand | Analog Devices Inc. |
| Category | Integrated Circuits (ICs) > Data Acquisition - Analog to Digital Converters (ADC) |
| Description | IC ADC 12BIT SAR 8SOIC |
| Voltage - Supply, Digital | 5V |
| Voltage - Supply, Analog | 5V |
| Supplier Device Package | 8-SOIC |
| Sampling Rate (Per Second) | 117k |
| Reference Type | External |
| Ratio - S/H:ADC | 1:1 |
| Package / Case | 8-SOIC (0.154', 3.90mm Width) |
| Operating Temperature | -40°C ~ 85°C |
| Number of Inputs | 1 |
| Number of Bits | 12 |
| Number of A/D Converters | 1 |
| Mounting Type | Surface Mount |
| Input Type | Single Ended |
| Data Interface | SPI |
| Configuration | S/H-ADC |
| Architecture | SAR |
Key Features
- High-Speed Conversion: The AD7893AR-2 features a 6 µs successive approximation A/D converter, allowing for high-speed data acquisition.
- Low Power Consumption: Operating from a single +5 V supply, the ADC consumes only 25 mW typical, making it suitable for battery-powered devices.
- On-Chip Track/Hold Amplifier: The component includes an on-chip track/hold amplifier, which helps in maintaining signal integrity during the conversion process.
- High Speed Serial Interface: The ADC provides a high-speed serial interface with a serial clock input and a serial data output, facilitating easy data transfer.
- Flexible Input Ranges: The AD7893 series offers various input ranges, including ±10 V, ±2.5 V, 0 V to +5 V, and 0 V to +2.5 V, catering to different application requirements.
- Compact Packaging: The 8-pin SOIC package is compact and space-efficient, ideal for applications where board space is limited.
Applications
- Battery-Powered Devices: The low power consumption of the AD7893AR-2 makes it an excellent choice for battery-powered devices such as portable medical equipment, handheld instruments, and wireless sensors.
- Industrial Automation: The high-speed and accurate conversion capabilities of the ADC are beneficial in industrial automation systems, including process control and monitoring applications.
- Medical Devices: The component's precision and reliability are crucial in medical devices such as patient monitoring systems, diagnostic equipment, and medical imaging devices.
- Aerospace and Defense: The AD7893AR-2's robust performance and compact design make it suitable for use in aerospace and defense applications where reliability and efficiency are paramount.
Q & A
- What is the resolution of the AD7893AR-2 ADC?
The AD7893AR-2 is a 12-bit analog-to-digital converter.
- What is the typical power consumption of the AD7893AR-2?
The typical power consumption is 25 mW.
- What is the sampling rate of the AD7893AR-2?
The sampling rate is up to 117 kHz.
- What type of package does the AD7893AR-2 come in?
The AD7893AR-2 comes in an 8-pin SOIC package.
- What is the operating temperature range of the AD7893AR-2?
The operating temperature range is -40°C to 85°C.
- Does the AD7893AR-2 have an on-chip track/hold amplifier?
Yes, the AD7893AR-2 includes an on-chip track/hold amplifier.
- What type of data interface does the AD7893AR-2 use?
The AD7893AR-2 uses a high-speed serial interface (SPI).
- What are the available input voltage ranges for the AD7893 series?
The available input voltage ranges include ±10 V, ±2.5 V, 0 V to +5 V, and 0 V to +2.5 V.
- Is the AD7893AR-2 suitable for battery-powered devices?
Yes, the low power consumption makes it suitable for battery-powered devices.
- What is the architecture of the AD7893AR-2 ADC?
The architecture is successive approximation (SAR).
