Overview
The AD7190BRUZ by Analog Devices Inc. is a 4.8 kHz ultralow noise, 24-bit Sigma-Delta Analog-to-Digital Converter (ADC) with a Programmable Gain Array (PGA). It is designed for high precision measurement applications and features a complete analog front end. The device operates with a single supply voltage and is housed in a 24-lead TSSOP package, suitable for compact and densely populated circuits. It supports a wide temperature range from -40 to 105 degrees Celsius and is ROHS compliant, making it versatile for various industrial and consumer applications.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Resolution | 24-bit | - | Sigma-Delta ADC |
| Output Data Rate | 4.7 Hz to 4.8 kHz | Hz | Variable, depending on filter settings |
| Analog Input Voltage Range | -5V to +5V | V | Differential and pseudo differential inputs |
| Power Supply Voltage (Analog) | 4.75 V to 5.25 V | V | - |
| Power Supply Voltage (Digital) | 2.7 V to 5.25 V | V | - |
| Current Consumption | 6 mA (typical) | mA | Depends on gain and buffer settings |
| Operating Temperature Range | -40°C to +105°C | °C | Industrial temperature grade |
| Package Type | TSSOP-24 | - | Rectangular, thin-profile, small outline package |
| Moisture Sensitivity Level | 1 | - | - |
| Certification | ROHS compliant | - | - |
Key Features
- Ultralow Noise: The AD7190BRUZ features ultralow noise characteristics, making it suitable for high precision measurement applications.
- Programmable Gain Array (PGA): The device includes an on-chip PGA, allowing for the amplification of small amplitude signals directly interfaced to the ADC.
- Multiple Input Configurations: It can be configured to have two differential inputs or four pseudo differential inputs, with an on-chip channel sequencer for sequential conversions.
- Digital Filter Options: The device has two digital filter options, affecting the rms noise, noise-free resolution, settling time, and 50 Hz/60 Hz rejection.
- Zero Latency Feature: For applications requiring all conversions to be settled, the AD7190 includes a zero latency feature.
- Flexible Data Interface: Supports 3 Wire, Microwire, QSPI, Serial, and SPI communication protocols.
- High Resolution and Accuracy: Offers high-resolution conversion with a linearity error max (EL) of 0.0005%.
Applications
- Industrial Automation: Suitable for control systems and sensors in manufacturing processes, such as temperature, pressure, or flow measurement.
- Medical Imaging: Potential use in medical imaging equipment like digital X-ray and MRI, where precise signal conversion is critical.
- Environmental Monitoring: Can be used in environmental monitoring systems, including air quality sensors, water pollution detectors, and soil quality assessments.
- Consumer Electronics: Applicable in high-fidelity audio equipment to enhance audio signal conversion and improve sound quality.
- Data Acquisition and Scientific Instrumentation: Useful in weigh scales, strain gauge transducers, pressure measurement, temperature measurement, and chromatography.
Q & A
- What is the resolution of the AD7190BRUZ ADC?
The AD7190BRUZ has a 24-bit resolution.
- What is the output data rate range of the AD7190BRUZ?
The output data rate can be varied from 4.7 Hz to 4.8 kHz.
- What types of input configurations does the AD7190BRUZ support?
The device can be configured to have two differential inputs or four pseudo differential inputs.
- What is the operating temperature range of the AD7190BRUZ?
The operating temperature range is from -40°C to +105°C.
- Is the AD7190BRUZ ROHS compliant?
Yes, the AD7190BRUZ is ROHS compliant.
- What is the power supply voltage range for the analog and digital parts of the AD7190BRUZ?
The analog power supply voltage is 4.75 V to 5.25 V, and the digital power supply voltage is 2.7 V to 5.25 V.
- What is the typical current consumption of the AD7190BRUZ?
The typical current consumption is 6 mA, depending on the gain and buffer settings.
- What package type does the AD7190BRUZ come in?
The device is housed in a 24-lead TSSOP package.
- What are some potential applications of the AD7190BRUZ?
Potential applications include industrial automation, medical imaging, environmental monitoring, consumer electronics, and data acquisition.
- Does the AD7190BRUZ have any special features for noise reduction?
Yes, it features ultralow noise characteristics and digital filter options to reduce noise and improve resolution.
