Overview
The AD7191BRUZ-REEL, produced by Analog Devices Inc., is a high-precision, 24-bit, sigma-delta analog-to-digital converter (ADC) designed for use with bridge sensors. This IC is known for its ultralow noise performance and pin-programmable features, making it highly versatile for various applications. The AD7191 operates with a power supply range of 3 V to 5.25 V and is packaged in a 24-lead TSSOP package.
Key Specifications
| Specification | Value |
|---|---|
| Number of Channels | 2 |
| Resolution | 24 bits |
| Output Data Rate | 10 Hz, 50 Hz, 60 Hz, or 120 Hz |
| PGA Gain | 1, 8, 64, or 128 |
| Full-Scale Differential Input | ±5 V, ±625 mV, ±78 mV, or ±39 mV |
| Power Supply | 3 V to 5.25 V |
| Current Consumption | 4.35 mA |
| Package Type | 24-lead TSSOP |
Key Features
- Pin-Programmable Features: All features of the AD7191 are controlled by dedicated pins, enhancing ease of use and flexibility.
- Ultralow Noise Performance: The ADC is designed to provide very low noise, making it suitable for high-precision applications.
- On-Chip PGA: The integrated programmable gain amplifier (PGA) supports various gain settings, allowing for a range of full-scale differential inputs.
- Simultaneous Noise Rejection: The AD7191 can reject both 50 Hz and 60 Hz noise when the output data rate is set to 10 Hz or 50 Hz, and 60 Hz only when set to 60 Hz.
- Internal or External Clock Operation: The ADC can operate with either an internal clock or an external clock, providing flexibility in system design.
Applications
The AD7191BRUZ-REEL is primarily used in applications requiring high precision and low noise, such as:
- Bridge Sensor Applications: It is optimized for use with bridge sensors, making it ideal for weight scales, pressure sensors, and other precision measurement systems.
- Industrial Automation: Its high accuracy and low noise make it suitable for industrial automation applications where precise data acquisition is critical.
- Medical Devices: The AD7191 can be used in medical devices that require high-precision data acquisition, such as patient monitoring systems and diagnostic equipment.
Q & A
- What is the resolution of the AD7191BRUZ-REEL?
The AD7191BRUZ-REEL has a resolution of 24 bits.
- What are the available output data rates for the AD7191?
The output data rate can be programmed to 10 Hz, 50 Hz, 60 Hz, or 120 Hz.
- What is the power supply range for the AD7191?
The AD7191 operates with a power supply range of 3 V to 5.25 V.
- What is the current consumption of the AD7191?
The AD7191 consumes a current of 4.35 mA.
- What package type is the AD7191 available in?
The AD7191 is available in a 24-lead TSSOP package.
- Can the AD7191 reject both 50 Hz and 60 Hz noise?
- Does the AD7191 support internal or external clock operation?
- What is the primary application of the AD7191?
The AD7191 is primarily used in bridge sensor applications, such as weight scales and pressure sensors.
- Is there an evaluation board available for the AD7191?
- Can the AD7191 be used in medical devices?
