Overview
The AD7993BRU-0 is a 4-channel, 10-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the AD7993/AD7994 family and is known for its high performance, low power consumption, and I2C-compatible serial interface. It is particularly useful in applications requiring multiple channel conversions with precise control and low power usage.
Key Specifications
| Parameter | Value | Unit | Test Conditions/Comments |
|---|---|---|---|
| Resolution | 10-bit | - | - |
| Conversion Time | 2 µs | - | - |
| Supply Voltage | 2.7 V to 5.5 V | V | - |
| Reference Voltage | Up to the power supply | V | - |
| Temperature Range (B Version) | -40°C to +125°C | °C | - |
| Signal-to-Noise + Distortion (SINAD) | 61 dB min | dB | FIN = 10 kHz sine wave for fSCL from 1.7 MHz to 3.4 MHz |
| Total Harmonic Distortion (THD) | -75 dB max | dB | FIN = 10 kHz sine wave for fSCL from 1.7 MHz to 3.4 MHz |
| Peak Harmonic or Spurious Noise (SFDR) | -76 dB max | dB | FIN = 10 kHz sine wave for fSCL from 1.7 MHz to 3.4 MHz |
| Shutdown Current | 1 µA max | A | - |
| Package Type | 16-TSSOP | - | - |
Key Features
- I2C-compatible serial interface with pin-selectable addresses, allowing up to five devices on the same serial bus.
- Automatic shutdown while not converting to maximize power efficiency.
- Out-of-range indicator that can be software disabled or enabled.
- On-chip limit registers can be programmed with high and low limits for the conversion result.
- Low power consumption with a conversion time of 2 µs.
Applications
The AD7993BRU-0 is suitable for a variety of applications, including industrial automation, medical devices, and consumer electronics where multiple channel analog-to-digital conversions are required. It is particularly useful in scenarios where low power consumption and high precision are critical.
Q & A
- What is the resolution of the AD7993BRU-0 ADC?
The AD7993BRU-0 has a resolution of 10 bits. - What is the conversion time of the AD7993BRU-0?
The conversion time is 2 µs. - What is the supply voltage range for the AD7993BRU-0?
The supply voltage range is from 2.7 V to 5.5 V. - Can the reference voltage be driven up to the power supply voltage?
Yes, the reference voltage can be driven up to the power supply voltage. - What is the temperature range for the B version of the AD7993BRU-0?
The temperature range for the B version is -40°C to +125°C. - How many devices can be connected to the same I2C bus?
Up to five AD7993/AD7994 devices can be connected to the same I2C bus. - What is the purpose of the out-of-range indicator?
The out-of-range indicator becomes active when the programmed high or low limits are violated by the conversion result and can be used as an interrupt. - How does the AD7993BRU-0 manage power efficiency?
The device features automatic shutdown while not converting to maximize power efficiency. - What is the maximum shutdown current of the AD7993BRU-0?
The maximum shutdown current is 1 µA. - In what package type is the AD7993BRU-0 available?
The AD7993BRU-0 is available in a 16-TSSOP package.
