Overview
The AD7997BRU-1 is a high-performance, 10-bit, 8-channel analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD7997/AD7998 family, known for its low power consumption and I2C-compatible serial interface. The AD7997BRU-1 operates from a single 2.7 V to 5.5 V power supply and features a fast conversion time of 2 µs, making it suitable for a variety of applications requiring precise and efficient analog-to-digital conversion.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 10 bits |
| Number of Channels | 8 channels |
| Conversion Time | 2 µs |
| Power Supply Range | 2.7 V to 5.5 V |
| Operating Temperature Range | –40°C to +85°C |
| Package Type | 20-lead TSSOP (RU-20) |
| Serial Interface | I2C-compatible (standard, fast, and high speed modes) |
| Input Range | 0 V to REFIN |
| Shutdown Current | 1 µA max at 3 V |
Key Features
- I2C-compatible serial interface with pin-selectable addresses, supporting standard, fast, and high speed modes.
- Automatic shutdown mode to maximize power efficiency, with a current consumption of 1 µA max at 3 V.
- On-chip limit registers that can be programmed with high and low limits for the conversion result, along with an out-of-range indicator/alert function.
- Single-ended analog input channels with an input range of 0 V to REFIN.
- Track-and-hold amplifier capable of handling input frequencies up to 11 MHz.
Applications
- Data acquisition systems requiring multiple analog inputs.
- Industrial control and automation systems.
- Medical devices and diagnostic equipment.
- Aerospace and defense applications where low power and high precision are critical.
- Automotive systems, including sensor monitoring and control.
Q & A
- What is the resolution of the AD7997BRU-1 ADC?
The AD7997BRU-1 has a resolution of 10 bits.
- How many analog input channels does the AD7997BRU-1 have?
The AD7997BRU-1 has 8 analog input channels.
- What is the conversion time of the AD7997BRU-1?
The conversion time of the AD7997BRU-1 is 2 µs.
- What is the operating temperature range of the AD7997BRU-1?
The operating temperature range is –40°C to +85°C.
- What type of serial interface does the AD7997BRU-1 use?
The AD7997BRU-1 uses an I2C-compatible serial interface.
- What is the power supply range for the AD7997BRU-1?
The power supply range is 2.7 V to 5.5 V.
- What is the package type of the AD7997BRU-1?
The package type is 20-lead TSSOP (RU-20).
- Does the AD7997BRU-1 have an out-of-range indicator?
- What is the maximum current consumption in shutdown mode?
The maximum current consumption in shutdown mode is 1 µA at 3 V.
- Can multiple AD7997BRU-1 devices be connected to the same serial bus?
