Overview
The AD7994BRU-1 is a high-performance, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD7993/AD7994 family, known for its fast conversion time, low power consumption, and I²C-compatible serial interface. The AD7994BRU-1 is designed to meet the demands of various data acquisition applications, offering a balance of speed, accuracy, and power efficiency.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Sampling Rate (Per Second) | 188 kSPS |
| Number of Inputs | 4 (single-ended analog input channels) |
| Input Type | Single Ended |
| Data Interface | I²C |
| Configuration | MUX-S/H-ADC |
| Reference Type | External |
| Voltage - Supply, Analog | 2.7 V ~ 5.5 V |
| Voltage - Supply, Digital | 2.7 V ~ 5.5 V |
| Operating Temperature | -40°C ~ 125°C |
| Package / Case | 16-TSSOP (Thin Shrink Small Outline Package) |
Key Features
- Fast Conversion Time: The AD7994BRU-1 features a fast conversion time of 2 µs, making it suitable for high-speed data acquisition applications.
- Low Power Consumption: The device consumes low power, with a maximum current consumption of 1 µA in shutdown mode, enhancing power efficiency.
- I²C-Compatible Serial Interface: The component supports an I²C-compatible serial interface with pin-selectable addresses, allowing multiple devices to be connected to the same serial bus.
- Automatic Shutdown: The ADC automatically shuts down when not converting, further maximizing power efficiency.
- Out-of-Range Indicator: An out-of-range indicator output (ALERT) can be used as an interrupt, notifying when the conversion result violates programmed high or low limits.
- Sequencer Operation: The device supports sequencer operation, allowing for programmed conversion sequences.
Applications
- Data Acquisition Systems: Ideal for various data acquisition systems requiring high-speed and accurate analog-to-digital conversion.
- Industrial Automation: Suitable for industrial automation applications where fast and reliable data conversion is critical.
- Medical Devices: Used in medical devices that require precise and rapid analog-to-digital conversion.
- Aerospace and Defense: Applicable in aerospace and defense systems where high performance and reliability are essential.
Q & A
- What is the resolution of the AD7994BRU-1 ADC?
The AD7994BRU-1 has a resolution of 12 bits.
- What is the sampling rate of the AD7994BRU-1?
The sampling rate is 188 kSPS (kilosamples per second).
- How many analog input channels does the AD7994BRU-1 have?
The device has 4 single-ended analog input channels.
- What type of data interface does the AD7994BRU-1 use?
The device uses an I²C-compatible serial interface.
- What is the operating temperature range of the AD7994BRU-1?
The operating temperature range is -40°C to 125°C.
- What is the package type of the AD7994BRU-1?
The package type is 16-TSSOP (Thin Shrink Small Outline Package).
- Does the AD7994BRU-1 support automatic shutdown?
Yes, the device automatically shuts down when not converting to maximize power efficiency.
- Can multiple AD7994BRU-1 devices be connected to the same serial bus?
Yes, the I²C-compatible serial interface with pin-selectable addresses allows multiple devices to be connected to the same serial bus.
- What is the purpose of the ALERT output in the AD7994BRU-1?
The ALERT output serves as an out-of-range indicator and can be used as an interrupt when the conversion result violates programmed high or low limits.
- Is the AD7994BRU-1 suitable for high-speed data acquisition applications?
Yes, with a fast conversion time of 2 µs, it is well-suited for high-speed data acquisition applications.
