Overview
The AD7894ARZ-10REEL7 is a high-performance, 14-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This component operates from a single +5 V supply and is housed in a compact 8-pin SOIC package. It features a successive approximation ADC, an on-chip track/hold amplifier, an on-chip clock, and a high-speed serial interface. The AD7894 is designed for applications requiring high accuracy and fast conversion times, making it suitable for a variety of industrial and medical devices.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 14 bits |
| Supply Voltage | +5 V |
| Power Consumption | 20 mW (typical) |
| Analog Input Range | ±10 V (AD7894-10), ±2.5 V (AD7894-3), 0 V to 2.5 V (AD7894-2) |
| Conversion Time | 4.5 µs |
| Package Type | 8-Lead SOIC |
| Operating Temperature Range | -40°C to +85°C |
| Interface | High-speed serial interface (2-wire) |
Key Features
- True bipolar input capability
- On-chip track/hold amplifier and clock
- High-speed serial interface for data output
- Automatic power down mode for low power applications
- High sampling rate mode
- Compact 8-pin SOIC package
- Dynamic performance specifications including harmonic distortion and signal-to-noise ratio
Applications
The AD7894 is versatile and can be used in various applications, including industrial process control, medical devices, data acquisition systems, and any scenario requiring high-precision and fast analog-to-digital conversion. Its low power consumption and automatic power down mode make it particularly suitable for battery-powered devices and other low-power applications.
Q & A
- What is the resolution of the AD7894 ADC?
The AD7894 has a resolution of 14 bits. - What is the supply voltage for the AD7894?
The AD7894 operates from a single +5 V supply. - What is the typical power consumption of the AD7894?
The typical power consumption is 20 mW. - What are the available analog input ranges for the AD7894?
The available analog input ranges are ±10 V, ±2.5 V, and 0 V to 2.5 V, depending on the model. - How long does the AD7894 take to convert an analog signal to digital?
The conversion time is 4.5 µs. - What type of package does the AD7894 come in?
The AD7894 is housed in an 8-pin SOIC package. - What is the operating temperature range of the AD7894?
The operating temperature range is -40°C to +85°C. - Does the AD7894 have an automatic power down mode?
Yes, the AD7894 features an automatic power down mode for low power applications. - What type of interface does the AD7894 use for data output?
The AD7894 uses a high-speed serial interface (2-wire) for data output. - What are some common applications for the AD7894?
The AD7894 is commonly used in industrial process control, medical devices, data acquisition systems, and other applications requiring high-precision and fast analog-to-digital conversion.
