Overview
The AD7893AR-3, manufactured by Analog Devices Inc., is a high-performance 12-bit analog-to-digital converter (ADC) designed for a wide range of applications. This ADC operates from a single +5 V supply and is housed in a compact 8-pin SOIC package, making it ideal for space-constrained designs. The AD7893AR-3 features a successive approximation (SAR) architecture and includes an on-chip track/hold amplifier, an on-chip clock, and a high-speed serial interface. This combination of features enables fast and accurate analog-to-digital conversion, making it suitable for various industrial, medical, and consumer electronics applications.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD7893AR-3 |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Number of Bits | 12 |
| Number of A/D Converters | 1 |
| Input Type | Single Ended |
| Number of Inputs | 1 |
| Sampling Rate | 117 kSPS |
| Reference Type | External |
| Ratio - S/H:ADC | 1:1 |
| Voltage - Supply, Digital | 5V |
| Voltage - Supply, Analog | 5V |
| Operating Temperature | -40°C ~ 85°C |
| Data Interface | SPI |
| Configuration | S/H-ADC |
| Architecture | SAR |
Key Features
- High-Speed Conversion: The AD7893AR-3 operates at a sampling rate of up to 117 kSPS, making it suitable for fast data acquisition applications.
- Low Power Consumption: It consumes only 25 mW typical, ideal for battery-powered or portable applications.
- Compact Packaging: Housed in an 8-pin SOIC package, it is perfect for space-constrained designs.
- On-Chip Track/Hold Amplifier: Includes an on-chip track/hold amplifier, ensuring accurate signal capture and conversion.
- High-Speed Serial Interface: Features a high-speed serial interface for easy data transfer, compatible with a wide range of microcontrollers and digital signal processors.
- Single Supply Operation: Operates from a single +5 V supply, simplifying power management in system designs.
Applications
- Communication: Used in various communication systems for analog signal processing.
- Industrial Control: Employed in industrial control systems for precise measurement and control.
- Measuring Instruments: Utilized in measuring instruments for accurate data acquisition.
- Consumer Electronics: Found in consumer electronics such as audio processing and other multimedia devices.
- Medical Instruments: Used in medical devices for precise signal conversion and analysis.
- Automotive Electronics: Applied in automotive systems for various sensor and control applications.
Q & A
- What is the resolution of the AD7893AR-3 ADC?
The AD7893AR-3 has a 12-bit resolution.
- What is the sampling rate of the AD7893AR-3?
The AD7893AR-3 can sample at rates up to 117 kSPS.
- What type of package does the AD7893AR-3 come in?
The AD7893AR-3 is housed in an 8-pin SOIC package.
- What is the operating temperature range of the AD7893AR-3?
The operating temperature range is -40°C to +85°C.
- Does the AD7893AR-3 have an on-chip track/hold amplifier?
Yes, the AD7893AR-3 includes an on-chip track/hold amplifier.
- What type of data interface does the AD7893AR-3 use?
The AD7893AR-3 uses a high-speed SPI (Serial Peripheral Interface) for data transfer.
- How much power does the AD7893AR-3 consume?
The AD7893AR-3 consumes approximately 25 mW of power.
- Is the AD7893AR-3 suitable for battery-powered applications?
Yes, due to its low power consumption, it is suitable for battery-powered applications.
- What are the typical input voltage ranges for the AD7893AR-3?
The AD7893AR-3 can handle input voltage ranges such as ±10 V, ±2.5 V, 0 V to +5 V, and 0 V to +2.5 V depending on the specific model variant.
- Is the AD7893AR-3 RoHS compliant?
Yes, the AD7893AR-3 is RoHS compliant and lead-free.
