Overview
The AD7994BRUZ-0 from Analog Devices Inc. is a 4-channel, 12-bit analog-to-digital converter (ADC) designed for low power consumption and high performance. This device features a successive approximation architecture and an I2C-compatible serial interface. It operates from a single power supply ranging from 2.7 V to 5.5 V and is housed in a 16-lead Thin Shrink Small Outline Package (TSSOP).
The AD7994BRUZ-0 is part of the AD7994 series, which includes versions with different I2C interface modes. This specific model supports Standard and Fast I2C interface modes, allowing for flexible integration into various systems.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 4 |
| Resolution | 12 bits |
| Conversion Time | 2 µs (typical) |
| Sample Rate | 188 kSPS |
| Input Type | Single-ended |
| Interface | I2C-compatible (Standard and Fast modes) |
| Power Supply | 2.7 V to 5.5 V |
| Package | 16-lead TSSOP |
| Temperature Range | -40°C to +125°C |
| Shutdown Current | 1 µA (maximum) |
Key Features
- Low Power Consumption: The AD7994BRUZ-0 features automatic shutdown while not converting, maximizing power efficiency with a shutdown current of 1 µA maximum.
- Fast Conversion Time: The device has a conversion time of 2 µs, enabling fast throughput rates of up to 188 kSPS.
- I2C-Compatible Interface: Supports Standard and Fast I2C interface modes, allowing for multiple devices to be connected to the same serial bus.
- External Reference: The ADC requires an external reference voltage that can be driven up to the power supply voltage, providing a wide dynamic input range.
- Out-of-Range Indicator: Features an out-of-range indicator output that can be software-enabled or disabled, useful for alerting when conversion results exceed programmed limits.
Applications
- Industrial Automation: Suitable for monitoring and control systems in industrial environments due to its robust performance and low power consumption.
- Medical Devices: Can be used in medical equipment requiring precise analog-to-digital conversion with low power consumption.
- Consumer Electronics: Ideal for applications in consumer electronics that require multi-channel ADCs with I2C interfaces.
- Aerospace and Defense: Applicable in aerospace and defense systems where high reliability and low power consumption are critical.
Q & A
- What is the resolution of the AD7994BRUZ-0?
The AD7994BRUZ-0 has a resolution of 12 bits.
- What is the conversion time of the AD7994BRUZ-0?
The conversion time is typically 2 µs.
- What is the sample rate of the AD7994BRUZ-0?
The sample rate is up to 188 kSPS.
- What type of interface does the AD7994BRUZ-0 support?
The device supports an I2C-compatible interface with Standard and Fast modes.
- What is the power supply range for the AD7994BRUZ-0?
The power supply range is from 2.7 V to 5.5 V.
- What is the package type of the AD7994BRUZ-0?
The device is packaged in a 16-lead TSSOP.
- What is the temperature range for the AD7994BRUZ-0?
The temperature range is -40°C to +125°C.
- How does the AD7994BRUZ-0 manage power consumption?
The device features automatic shutdown while not converting, reducing power consumption to 1 µA maximum in shutdown mode.
- Does the AD7994BRUZ-0 require an external reference voltage?
Yes, the device requires an external reference voltage that can range from 1.2 V to VDD.
- What is the purpose of the out-of-range indicator output?
The out-of-range indicator output alerts when the conversion results exceed programmed high or low limits and can be used as an interrupt.
