Overview
The AD7894ARZ-3REEL7 is a high-performance, 14-bit analog-to-digital converter (ADC) produced 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 conversion technique and includes 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 rates, with dynamic performance parameters such as harmonic distortion and signal-to-noise ratio also specified.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Conversion Time | 4.5 µs |
| Supply Voltage | +5 V |
| Power Consumption | 20 mW (typical) |
| Analog Input Range | 0 V to 2.5 V (AD7894-3) |
| 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 with various input ranges (e.g., ±10 V, ±2.5 V, 0 V to 2.5 V)
- On-chip track/hold amplifier and on-chip clock
- High-speed serial interface for data output
- Automatic power down mode for low power applications
- Compact 8-pin SOIC package
- High sampling rate and fast conversion time of 4.5 µs
Applications
The AD7894ARZ-3REEL7 is suitable for a variety of applications that require high accuracy and fast conversion rates. These include:
- Industrial control systems
- Medical devices
- Aerospace and defense systems
- Automotive systems
- Data acquisition systems
Q & A
- What is the resolution of the AD7894ARZ-3REEL7?
The AD7894ARZ-3REEL7 has a resolution of 14 bits. - What is the typical conversion time of the AD7894ARZ-3REEL7?
The typical conversion time is 4.5 µs. - What is the supply voltage for the AD7894ARZ-3REEL7?
The supply voltage is +5 V. - What is the power consumption of the AD7894ARZ-3REEL7?
The typical power consumption is 20 mW. - What are the available analog input ranges for the AD7894?
The available analog input ranges include ±10 V, ±2.5 V, and 0 V to 2.5 V. - What type of package does the AD7894ARZ-3REEL7 come in?
The AD7894ARZ-3REEL7 comes in an 8-Lead SOIC package. - Does the AD7894ARZ-3REEL7 have an on-chip clock and track/hold amplifier?
Yes, it includes both an on-chip clock and an on-chip track/hold amplifier. - What is the operating temperature range for the AD7894ARZ-3REEL7?
The operating temperature range is -40°C to +85°C. - Does the AD7894ARZ-3REEL7 support automatic power down for low power applications?
Yes, it features an automatic power down mode for low power applications. - What type of interface does the AD7894ARZ-3REEL7 use for data output?
The AD7894ARZ-3REEL7 uses a high-speed serial interface (2-wire) for data output.
