Overview
The AD7994BRUZ-1, produced by Analog Devices Inc., is a 4-channel, 10- and 12-bit successive approximation analog-to-digital converter (ADC) with an I2C-compatible interface. This component is designed for low power consumption and features a fast conversion time of 2 µs. It operates from a single 2.7 V to 5.5 V power supply and includes a 4-channel multiplexer and track-and-hold amplifier capable of handling input frequencies up to 11 MHz.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 4 |
| Resolution | 10-bit and 12-bit |
| Conversion Time | 2 µs (typical) |
| Power Supply | 2.7 V to 5.5 V |
| Interface | I2C-compatible (Standard, Fast, and High-Speed modes for AD7994-1) |
| Input Frequency | Up to 11 MHz |
| Temperature Range | −40°C to +125°C |
| Package Type | 16-Lead TSSOP |
| Shutdown Current | 1 µA (maximum) |
| Reference Voltage Range | 1.2 V to VDD |
Key Features
- Low power consumption with automatic shutdown while not converting.
- Fast throughput rate of up to 188 kSPS.
- I2C-compatible serial interface with pin-selectable addresses, allowing up to five devices on the same serial bus.
- On-chip limit registers for high and low limits, with an out-of-range indicator output (ALERT).
- External reference voltage input (REFIN) that can be driven up to the power supply voltage.
Applications
The AD7994BRUZ-1 is suitable for a variety of applications requiring multi-channel analog-to-digital conversion, such as industrial control systems, medical devices, and automotive systems. Its low power consumption and fast conversion time make it ideal for battery-powered devices and high-speed data acquisition systems.
Q & A
- What is the resolution of the AD7994BRUZ-1 ADC? The AD7994BRUZ-1 is available in both 10-bit and 12-bit resolutions.
- What is the conversion time of the AD7994BRUZ-1? The conversion time is 2 µs (typical).
- What is the power supply range for the AD7994BRUZ-1? The power supply range is from 2.7 V to 5.5 V.
- What type of interface does the AD7994BRUZ-1 use? The AD7994BRUZ-1 uses an I2C-compatible serial interface.
- How many channels does the AD7994BRUZ-1 have? The AD7994BRUZ-1 has 4 single-ended analog input channels.
- What is the temperature range for the AD7994BRUZ-1? The temperature range is from −40°C to +125°C.
- What is the package type of the AD7994BRUZ-1? The package type is 16-Lead TSSOP.
- How does the AD7994BRUZ-1 manage power consumption? The AD7994BRUZ-1 has automatic shutdown while not converting, reducing power consumption to 1 µA (maximum) in shutdown mode.
- Can multiple AD7994BRUZ-1 devices be connected to the same I2C bus? Yes, up to five devices can be connected to the same I2C bus due to pin-selectable addresses.
- What is the purpose of the ALERT output on the AD7994BRUZ-1? The ALERT output is an out-of-range indicator that becomes active when the programmed high or low limits are violated by the conversion result.
